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Tattoos embody autobiographical memories

Published online by Cambridge University Press:  11 March 2024

Kristina Klug*
Affiliation:
Department of Psychology, Goethe-University Frankfurt, Frankfurt, Germany
Christin Camia
Affiliation:
Department of Psychology, Zayed University, Abu Dhabi, United Arab Emirates
Sonja Rohrmann
Affiliation:
Department of Psychology, Goethe-University Frankfurt, Frankfurt, Germany
*
Corresponding author: Kristina Klug; Email: klug@psych.uni-frankfurt.de

Abstract

Autobiographical memories play a vital role in shaping personal identity. Therefore, individuals often use various methods like diaries and photographs to preserve precious memories. Tattoos also serve as a means of remembering, yet their role in autobiographical memory has received limited attention in research. To address this gap, we surveyed 161 adults (68.9 per cent female, M = 26.93, SD = 6.57) to explore the life events that motivated their tattoos and to examine their most significant memories. We then compared these findings with significant memories of 185 individuals without tattoos (80.0 per cent female, M = 31.26, SD = 15.34). The results showed that the majority of tattoos were inspired by unique life events, including specific events about personal growth, relationships, leisure activities, losses, or diseases. Even when not directly tied to specific events in life, tattoos still reflect autobiographical content, such as mottos, beliefs, and values. Furthermore, the most significant memories of younger tattooed individuals (20–24 years) tended to be more normative and less stressful compared to those of their non-tattooed counterparts in the same age group, though the nature of these memories varied. This difference was not found among older participants (30–54 years). Additionally, those without tattoos indicated to use specific objects and methods for preserving important events, suggesting tattoos are only one of several ways to reminisce. However, tattoos uniquely allow for the physical embodiment of autobiographical memories, indicating that engraving significant life events in the skin aids in reflecting on one's life story.

Type
Research Article
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.
Copyright
Copyright © The Author(s), 2024. Published by Cambridge University Press

My latest tattoo is from a few years ago. I got it for my deceased dog, just to carry a reminder of him on the skin. The dog paw stands for my dog. Also, this tattoo says ‘Collect memories not things’. This saying fits so well, because we had the dog unfortunately only for half a year, in which countless vet visits took place. But still, I have so beautiful memories despite this short time. But the writing also means that we don't have to keep his things because we carry the memories in our hearts. I think tattoos can be very helpful to process experiences.

When asked about the meaning of her tattoo, Nicole, a 30-year-old participant told this experience of losing her dog. She remarks that she considers personal memories more useful than objects for keeping an emotional connection to the lost pet and that the tattoo helped her processing that experience and possibly sustaining the corresponding memory. This example illustrates that autobiographical memories are often allied with memory objects, and apparently also with tattoos. It moreover emphasizes that tattoos are multifunctional and symbolic media that express life stories without words (Häusle-Paulmichl Reference Häusle-Paulmichl2018; Stirn Reference Stirn2007). Some important events in life literally get under people's skin in the form of tattoos.

The growing popularity of tattooing and piercing (Heywood et al. Reference Heywood, Patrick, Smith, Simpson, Pitts and Richters2012), along with their appeal to a more diverse clientele, has sparked increased interest in the body among social and cultural theorists (e.g., Giddens Reference Giddens1991; Shilling Reference Shilling1993). Although psychoanalytical, sociological, and ethnological research addressed the tattooing of life events from different perspectives (e.g., Atkinson Reference Atkinson2003; Lemma Reference Lemma2010; Mun et al. Reference Mun, Janigo and Johnson2012; Oksanen and Turtiainen Reference Oksanen and Turtiainen2005; Pitts Reference Pitts2003; Sanders and Vail Reference Sanders and Vail2008; Shelton and Peters Reference Shelton and Peters2006; Steadman et al. Reference Steadman, Banister and Medway2019; Sweetman Reference Sweetman1999; Velliquette et al. Reference Velliquette, Murray and Evers2006), there are hardly any studies connecting tattoos and research on autobiographical memory. Therefore, our study addresses this gap. Specifically, we investigated the kinds and mnemonic characteristics of life events that motivated tattooing, which we label here tattoo events. Further, we compared mnemonic characteristics of important memories of tattooed and non-tattooed individuals and explored reasons for and use of other memory objects and ways in which non-tattooed individuals remember. Overall, this study aims at providing insight into whether and how tattoos function as extended autobiographical memory and what might separate them from other memory objects.

Autobiographical memory, memory objects, and tattoos

Autobiographical memories are essential for constructing life stories and maintaining a continuous sense of self (Bluck and Liao Reference Bluck and Liao2013; Habermas and Bluck Reference Habermas and Bluck2000; Habermas and Köber Reference Habermas, Köber, McLean and Syed2015; Prebble et al. Reference Prebble, Addis and Tippett2013). Our self-concept is closely linked to our autobiographical memory (Conway et al. Reference Conway, Singer and Tagini2004; Rubin Reference Rubin1986). While memories are products of internal cognition, they also rely on external media or objects for storage and retrieval. Janet (Reference Janet1928) argues that

[fi]rst memories are memories of objects and use objects as memory-aids. An individual who wants to remember takes something away with him: you bind a knot into the handkerchief, you put a pebble in your pocket, you take a piece of paper along. [ … ] From distant towns you take along souvenirs [ … ]; they are your memory-aids. Memory very often is material. (cited in Habermas and Paha Reference Habermas, Paha, Webster and Haight2002, p. 124)

Scholars from various academic fields, including consumer behaviour, sociology, or gerontology have shown interest in the evocative qualities of objects (Belk Reference Belk1988; Berntsen Reference Berntsen2022; Brooker and Duce Reference Brooker and Duce2000; Cohen Reference Cohen2000; Epp and Price Reference Epp and Price2010). Research in these areas has explored how souvenirs and mementoes authenticate memories and support reminiscing of past experiences that might otherwise be forgotten (Grayson and Shulman Reference Grayson and Shulman2000; Love and Sheldon Reference Love and Sheldon1998). Typical memory objects such as music collections, diaries, photographs, clothing, jewellery, or souvenirs, and the required processes to own them support the continuous sense of self by tying personal memories to the individual's environment (Belk Reference Belk1988; Habermas Reference Habermas and Lindemann2011; Kleine and Baker Reference Kleine and Baker2004; Price et al. Reference Price, Arnould and Curasi2000; Steadman et al. Reference Steadman, Banister and Medway2019; Turley and O'Donohoe Reference Turley and O'Donohoe2012). Especially in times when identity is uncertain or challenged, memory objects facilitate adaptation, development, and preservation of self-continuity (Bollas Reference Bollas1979; Buse and Twigg Reference Buse and Twigg2015; Schouten Reference Schouten1991) because the memory object itself helps individuals to remember their life stories and confirms past aspects of the self (Habermas Reference Habermas1999; Habermas and Paha Reference Habermas, Paha, Webster and Haight2002; Mehta and Belk Reference Mehta and Belk1991; Sundberg and Kjellman Reference Sundberg and Kjellman2017; Sweetman Reference Sweetman1999). Moreover, memory objects point to specific characteristics of personal memories such as people, places, and times, and foster interconnections between these memory characteristics (Belk Reference Belk1988). In this sense, objects and souvenirs serve as ‘touchstones of memory, evoking memories of places and relationships’ that concomitantly ‘materialize self-identity’ (Morgan and Pritchard Reference Morgan and Pritchard2005, pp. 41 & 30). In other words, memory objects help to engage in identity work, representing an extension of the self (Belk Reference Belk1988), and providing potent sources of memory (Hallam and Hockey Reference Hallam and Hockey2001). Memory objects worn on or against the body like clothes or jewelry seem particularly meaningful and emotionally charged for personal identity as these objects are physically connected to the person (Ash Reference Ash and Kirkham1996; Lupton Reference Lupton1998) and moreover capture memories through their ‘sensuality and tactility’ (Woodward Reference Woodward2007, p. 5). In this regard, tattoos may not seem different even though the actual physical process of getting a tattoo and the lasting changes it makes to the body may distinguish them from other, more common and bodily-worn memory objects.

While some people claim that they get tattoos for purely aesthetic reasons, previous research shows that tattoos often relate to important life events (Oksanen and Turtiainen Reference Oksanen and Turtiainen2005; Sweetman Reference Sweetman1999). In fact, tattoos can be understood as ‘a way of cutting into nature to create a living, breathing autobiography’ (Mifflin Reference Mifflin1997, p. 178) and a form of public storytelling (Crossley Reference Crossley2006). The body thus becomes a medium, a vehicle of communication that serves to express identity, individual creativity, and one's place in society or resistance to cultural practices and norms (Stirn Reference Stirn2007; Velliquette et al. Reference Velliquette, Murray and Evers2006). Tattoos convey messages about oneself to oneself and others (Häusle-Paulmichl Reference Häusle-Paulmichl2018).

Radical life changes, marriage, loss of a loved one, the search for a new goal in life, the end of a romantic relationship, death/birth or a family crisis are exemplary events which individuals deem worthy to embody in the form of tattoos (Oksanen and Turtiainen Reference Oksanen and Turtiainen2005; Steadman et al. Reference Steadman, Banister and Medway2019). Tattooed individuals also reported that the act of tattooing helped them to reconstruct themselves during a period of self-doubt (Keagy Reference Keagy2015) or to regain a sense of control in the face of dramatic and negative life experiences (Maxwell et al. Reference Maxwell, Thomas and Thomas2019). For example, borderline patients use tattoos to cope with negative life experiences, indicating that the tattoos help them to regulate negative emotions and inner tension. Furthermore, they reported that their tattoos remind them of identity-forming life experiences and thus represent reassurance (Höhner et al. Reference Höhner, Teismann and Willutzki2014). Indeed, Haubl (Reference Haubl, Hartmann and Haubl2000) considers identity formation to be the central motivation for getting a tattoo. Perpetuating important life events on the skin may give personal significance to particular life events and to one's life story as a whole.

The present study

Although people around the world appear to collect and cherish memory objects and tattoos (e.g., Kosut Reference Kosut2000; Oksanen and Turtiainen Reference Oksanen and Turtiainen2005; Phillips Reference Phillips2016; Steadman et al. Reference Steadman, Banister and Medway2019; Sundberg and Kjellman Reference Sundberg and Kjellman2017), research on autobiographical memory has barely investigated the mnemonic characteristics of memories associated with tattoos. However, as research on other material objects worn on or against the body shows (Ash Reference Ash and Kirkham1996; Habermas Reference Habermas and Lindemann2011), such memory objects provide potent sources of autobiographical memory, triggered through their relationship to embodied practice. Since previous sociological studies have mainly used portraits from tattoo magazines or qualitative case reports to investigate tattoos and their associated importance for their holder (e.g., Oksanen and Turtiainen Reference Oksanen and Turtiainen2005; Steadman et al. Reference Steadman, Banister and Medway2019), the present study is one of the first to combine research on autobiographical memory and tattoos by investigating quantitatively the autobiographical background of tattoos in a larger sample. As people attribute the greatest sense of self to their own bodies (Baumeister Reference Baumeister and Baumeister1999, Reference Baumeister2011), tattoos as corporeal expressions of the self may represent life events and thus serve as an embodied attempt to construct and maintain a continuous sense of self (Featherstone Reference Featherstone, Featherstone, Hepworth and Turner1991; Sweetman Reference Sweetman1999). Exploring this assumption, our first research question asked whether tattoos represent autobiographical memories, and if so, continued to investigate the mnemonic characteristics of important life events that motivated tattooing, i.e., of tattoo events.

Assuming that tattoo events are personally important events, we second explored whether the important life events of tattooed and non-tattooed individuals differ. For this purpose, we compared important life events of tattoo holders to important life events of non-tattoo holders in terms of content, normativity, age at the time of the event as well as stressfulness in the form of the need for readjustment/coping. This comparison might reveal if differences in the individuals’ autobiographical experiences may influence their choice to represent certain memories in the form of tattoos.

Altogether, this study aims to better understand the phenomenon of tattooing, especially why certain events and experiences are chosen for this particular form of perpetuation and what might separate them from life events that are associated with none or other (bodily-worn) memory objects. By listening to the stories of individuals’ tattoos and comparing important life events of tattooed and non-tattooed individuals, we hope to discover which life events weigh enough to break the skin barrier and become a permanent embodied image.

Method

Participants

The present work includes data from two different community samples. The first sample consists of participants with tattoos, while the second sample includes participants without tattoos. The tattooed subsample comprises data of 161 participants, of whom 68.9 per cent (n = 111) identified as female and 31.1 per cent (n = 50) as male. Tattooed participants ranged in age from 19 to 50 years (M = 26.93, SD = 6.57). The subsample of non-tattooed individuals includes data of 185 participants, of whom 80.0 per cent (n = 148) identified as female and 20.0 per cent (n = 37) as male. Non-tattooed participants ranged in age from 18 to 82 years (M = 31.26, SD = 15.34). The subsamples did not significantly differ in gender distribution; however, there were significantly more female than male participants in each subsample (χ 2 (1, 346) = 5.590, p = .018). Non-tattooed participants were significantly older than tattooed participants, t(251.5) = −3.329, p < .001.

Procedure

The study was approved by the Research Ethics Committee of Goethe University Frankfurt am Main (#2018-48). Participants were recruited via social media platforms and flyers distributed in different German universities and tattoo parlours. The requirement for participation was a minimum age of 18 years and the presence of at least one tattoo in the tattooed subsample and of no tattoo in the non-tattooed subsample.

Data from both subsamples were collected in two similarly constructed online surveys. Following providing consent and demographic information, participants were asked to report their seven most important life events (in the following called Top 7 life events) including the respective age at the time of the event. A total of 2393 Top 7 life events (n tattoo = 1125; n non-tattoo = 1268) were collected; 96.8 per cent (n = 335) of participants listed the requested seven life events.

Tattooed participants were moreover asked whether their tattoos were motivated by life events or served to remind them of life events. If applicable, participants were requested to narrate the tattoo event with as much detail as possible. Specifically, tattooed participants were asked to report ‘what happened, what impact did this event have on you and your life, why did you decide to eternize this event in the form of a tattoo, and what does the tattoo symbolize for you?’. Additionally, participants indicated their age at getting the tattoo, enabling us to compute the age of the tattoo at the time of participation in the study. Participants could provide up to three tattoo narratives. If participants had more than three tattoos, they were asked to write about their first, most important, and most recent tattoo. A total of n = 333 tattoo narratives were collected. All 161 participants provided at least one tattoo narrative, 110 participants (68.3 per cent) told two tattoo narratives, and 62 participants (38.5 per cent) provided three tattoo narratives.

Instead of tattoo narratives, participants of the non-tattooed sample were asked to provide reasons for not being tattooed and how they remember important life events. Participation in the study was not compensated.

Measures

Coding of content

Tattoo narratives and Top 7 life events of both subsamples were coded for content by two Bachelor's and Master's students blind to the hypotheses. Content coding schemes were based on previous event coding schemes developed by Berntsen and Rubin (Reference Berntsen and Rubin2004) and Habermas (Reference Habermas2007). Grounded in research on cultural life scripts representing the most common life events in a prototypical life in a certain culture (Bohn and Berntsen Reference Bohn, Berntsen, Bauer and Fivush2013), these coding schemes were originally created to categorize the content of life events in life stories and were used here to assign the content of tattoo narratives and Top 7 life events to overarching content categories, while fitting the North-European/German cultural context of our study. Given our focus on tattoos, we added the event category ‘Getting a tattoo’. Our manual thus contained a total of 17 main event categories reflecting the following areas of life: (1) Birth/children/siblings, (2) Childhood memories, (3) School, (4) Puberty / adolescence, (5) Family / celebration, (6) Relationships, (7) Work, (8) Aging, (9) Death, (10) Conflicts, (11) Home / vacation, (12) Accident / disease, (13) History / politics, (14) Gaining / losing something, (15) Leisure activities, (16) non-specific events, (17) Getting a tattoo. Including subcategories within these 17 main categories, about 100 categories were available to categorize the content of Top 7 life events and tattoo narratives. Since some of the main categories (e.g., birth/children/siblings) cover very different kinds of events (own birth, birth of relative, siblings, having children, having grandchildren, see Table A1) that also happen at different ages in life, we separated some life script-relevant subcategories (e.g., having children, marriage) and analysed them separately. Only one category was assigned to each life event; in case of doubt, the higher-ranked category was selected (cf. Habermas Reference Habermas2007). A detailed list of all content (sub-)categories emerging in our sample can be found in Table A1 of the appendix.

Different coders rated the content of the tattoo narratives and the Top 7 life events of both tattooed and non-tattooed participants. To establish interrater reliability, coded sets were compared independently by means of Cohen's kappa. Once the coders established substantial independent agreement of Cohen's κ ≥ .80, coders independently coded all remaining tattoo narratives or Top 7 events. Interrater reliability for the tattoo narratives was Cohen's κ = .78, based on 25 per cent of tattoo narratives. For the Top 7 events of tattoo holders, interrater reliability was Cohen's κ = .85, and for the Top 7 events of non-tattooed participants Cohen's κ = .83, based on 20 per cent of Top 7 life events. Once coding was completed, the remaining disagreements were resolved in a discussion with the authors.

Tattoo narratives assigned to the event category of non-specific events (main event category number 16; n = 70) were further analysed to capture their main topic. Based on 25 per cent of the non-specific tattoo narratives (n = 17), we deducted the following main topics: (1) Loss of childhood innocence, (2) Relationship with significant others (parents, grandparents, siblings, friends, partner), (3) Relationships with animals/pets, (4) Professional success/achievement, (5) Values/beliefs (pop culture, current values/politics, spirituality), (6) Aesthetics of tattoos and body/covering scars, and (7) Not assignable. The remaining 75 per cent of non-specific tattoos narratives (n = 53) were assigned to one of these thematic content categories by the first and second authors in joined conversation. Because assigning the non-specific tattoo narratives to main topic categories was unambiguous, no interrater reliability was calculated.

Normativity of events

Following previous research (Berntsen and Rubin Reference Berntsen and Rubin2004; Habermas Reference Habermas2007), tattoo narratives and Top 7 life events were classified in either normative life events (e.g., social-normative age-graded life events like beginning school or entering college; developmental normative age-graded life events like begin walking, puberty or first love) or idiosyncratic life events (e.g., diseases, divorce, losses, other kinds of events like events during college, major achievements, leisure activities or non-specific non-normative life events) according to their respective content category. Since conducting analyses on the tattoo event or life event level could lead to a fault increase in sample size increasing the likelihood of getting significant results and since events are nested within participants and thus not independent from each other, we calculated an average normativity value for each person concerning the tattoos events as well as an average normativity score concerning the Top 7 events which could range between 0 and 1. Higher values represent a higher number of mentioned normative events per participant.

Stressfulness of life events

Considering the connection of negative life events with tattoos (Höhner et al. Reference Höhner, Teismann and Willutzki2014; Keagy Reference Keagy2015; Maxwell et al. Reference Maxwell, Thomas and Thomas2019), we used the revised Social Readjustment Rating Scale (SRRS-R) by Hobson and colleagues (Reference Hobson, Kamen, Szostek, Nethercut, Tiedmann and Wojnarowicz1998) to assess tattoo events and Top 7 life events regarding their associated stressfulness. The SRRS-R contains 51 life events that are associated with a weighted measure of readjustment. For example, ‘death of a spouse/mate’ has a weighted score of 87 while the event ‘getting married’ has a score of 43 indicating that losing a spouse is more stressful and requires more readjustment than getting married. Matching tattoo events and Top 7 life events with the readjustment measure, we computed the total score of the relative level of stress that participants assumingly experienced in the aftermath of reported important stressful events. Only tattoo events and Top 7 life events that could be clearly attributed to one of the 51 SRRS-R items were assigned a stress score (cf. Appendix Table A1) and included in this further analysis. Similarly to normativity scores, we calculated an average readjustment score for each person concerning the tattoos events as well as an average readjustment score concerning the Top 7 events. We did so by forming a mean value of tattoo events or the Top 7 events for each individual.

Motivations for not getting a tattoo

Non-tattooed participants were asked to give reasons for not being tattooed. Since there has been no validated category system in the previous research to categorize the reasons for not getting a tattoo, categories were inductively derived from the open answers of the participants. First, initial preliminary categories based on 25 per cent of provided reasons were created by the first and second authors and then tested to what extent the provisionally adopted categories were suitable for a clear categorization of all participants’ statements. Discrepancies and ambiguities were discussed, leading to a revision of the categories. Ultimately, eight categories for motivations of not getting a tattoo emerged: (1) Permanence of tattoo intimidates, (2) Indecision of getting a tattoo, (3) Aesthetical dislike / no need, (4) Health risks or fear of pain, (5) Fear of social stigma, (6) Faith / religious prohibition, (7) Counter-trend, (8) Other (e.g., too high costs, change of taste). The remaining material was coded by the first and the second authors jointly which is why no interrater reliability was calculated.

Alternative ways of remembering of non-tattooed participants

Besides giving reasons for not being tattooed, the non-tattooed subsample was asked how they remember important life events. Because there has been no categorization of memory objects in previous research on autobiographical reminiscing, categories were again inductively derived from the open answers of the non-tattooed participants. First, the material was examined and initial preliminary categories were created by the first and second authors. In a first analysis, 25 per cent of the material was coded and it was tested to what extent the provisionally adopted categories were suitable for all answers. Discrepancies and ambiguities were discussed, leading to a revision of the categories. Ultimately, nine categories emerged: (1) Photos/Videos, (2) Mental Visual Imagery, (3) Shared reminiscing/Family stories, (4) Diaries/Letters/Documents, (5) Sensual and spatial stimuli such as smells, sounds, music, or places, (6) Bodily reminders such as scars, pain, or implants, (7) Anniversaries / Similar events, (8) Souvenirs, and (9) Other/Nothing. All of the remaining 75 per cent of the participants’ answers were then assigned to one of these categories by the first and the second authors in joined conversation. Therefore, no interrater reliability was calculated.

Results

Results of this study will be reported in two main sections according to our two main research questions, which were (1) do tattoos represent autobiographical memories and (2) do important memories of tattooed and non-tattooed individuals differ. The statistical analyses were conducted using R-Studio (version 1.1.456) and IBM SPSS Statistics (version 28). Because the data did not show any outliers, all participants (N = 346) were included in the analyses.

Do tattoos represent autobiographical memories?

The first research question includes only tattoo narratives (n = 333) in which tattooed participants described the stories behind their tattoos. Tattoo narratives were analysed for content, normativity, age at the time of the event, and stressfulness of the event. Results will be reported in this order.

Content

Content categories of tattoo narratives were compared via frequency analyses. Overall, the vast majority (82.9 per cent) of tattoo narratives related to autobiographical memories, whereas only 17.1 per cent of the narratives concerned the mere body modification, either the event of getting the tattoo or the aesthetics of body and tattoo. Figure 1 shows that tattoos predominantly embody autobiographical events such as family events, losses, leisure activities or events, relationships, personal development and aging, diseases, or work-related events. A detailed list of all content (sub-)categories and corresponding frequencies among the tattoo events can be found in Table A1 of the appendix.

Figure 1. Relative frequency in the percentage of the main content categories of all tattoo events.

About a fifth of the reported events were non-specific events that did not address actual events but rather whole life periods, abstract themes, people, animals, or attitudes. The additional coding of the main topic of the non-specific events revealed that these tattoo narratives mainly included aesthetics of the body (34.3 per cent), current values (21.4 per cent), spirituality (15.7 per cent), pop culture (8.6 per cent), and broad descriptions of relationships to significant others (8.6 per cent). The topic loss of childhood innocence only appeared rarely (1.4 per cent respectively), and the topic relationship to animals did not occur. About 10.0 per cent of the non-specific events could not be assigned to any main topic of the non-specific events (e.g., lost bet, drunk, wish).

Normativity

Excluding 15 participants reporting only narratives recounting the body modification, the average normativity for the remaining 146 tattooed participants was M = 0.167 (SD = .310), indicating that life events motivating a tattoo seem to be idiosyncratic rather than normative. Of the 146 participants, 72.6 per cent (n = 106) reported only idiosyncratic tattoo events, while 8.9 per cent (n = 13) reported only normative events.

In sum, participants’ narratives showed that tattoos were most often motivated by autobiographical, mostly idiosyncratic rather than normative life events. Even if the tattoo related to a general topic instead of a specific event, it still reflected aspects of participants’ lives such as personal values, beliefs, interests, or important relationships. Only the minority of tattoos appeared to aim for mere body beautification or modification. Therefore, we preliminarily conclude that most tattoos embody autobiographical memories.

Age at the time of tattoo event

Since most tattoo narratives were motivated by autobiographical life events, we consequently investigated the age at which participants got their first tattoo and the time interval between tattoo and corresponding tattoo event. We limited this analysis to those first tattoos for which the motivating events were listed among the Top 7 events, because participants provided their age at event for these life events only, and to compare age at event across all tattooed participants without overrepresenting those with more than one tattoo. For this purpose, all narratives for first tattoos were jointly analysed by the first and the second authors and compared with the presented Top 7 events. Only tattoo narratives that could unambiguously be assigned to a Top 7 event were included in the analyses. In total, 60 (37.3 per cent) participants reported tattoo events that occurred among their Top 7.

On average, events that motivated first tattoos and were listed among the Top 7 life events took place when participants were M = 19.27 years old (SD = 7.48, range 0–36 years). Around two and a half years later, when participants were on average M = 21.78 years old (SD = 4.72, range 16–37 years), these events were perpetuated in the form of tattoos.

Stressfulness

In total, 20 per cent of the tattoo events could be matched with a stressful life event listed by Hobson and colleagues (Reference Hobson, Kamen, Szostek, Nethercut, Tiedmann and Wojnarowicz1998) and hence assigned a measure of readjustment (cf. Appendix Table A1). For 65.2 per cent of participants (n = 105), no readjustment score could be calculated and were thus defined as missing, since they were not included in Hobson and colleagues’ (Reference Hobson, Kamen, Szostek, Nethercut, Tiedmann and Wojnarowicz1998) list. The remaining 34.8 per cent of participants (n = 56) described stressful tattoo events corresponding to Hobson and colleagues’ (Reference Hobson, Kamen, Szostek, Nethercut, Tiedmann and Wojnarowicz1998) criteria. The mean stress score across the 56 participants and respective tattoo events was M = 36.11.7 (SD = 20.39) with a range from 8.67 to 87.00, indicating that life events motivating a tattoo seem to be experienced as little to moderately stressful.

Do important life events of tattooed and non-tattooed individuals differ?

Addressing the second research question involves the Top 7 life events provided by both subsamples. We compared the Top 7 life events of tattooed participants to those of non-tattooed participants regarding content, normativity, age at the time of the event, and stressfulness of the event. Again, results will be reported in this order of mnemonic characteristics. Additionally, we report non-tattooed participants’ reasons for being untattooed and their memory objects.

Because non-tattooed participants were significantly older than tattooed participants and because the experience of normative life events depends on age (e.g., graduating from university or having children), the groups were not directly comparable as a whole. We therefore split the sample in different age groups along 5-year intervals. We chose semi-decades to account for greater change and development at younger ages. Accordingly, 14 age groups were formed in our data spanning 15–82 years of age. Only semi-decade age groups that comprised a sufficiently high and comparable number of tattooed and non-tattooed individuals were included in further analyses. Informed by a Pearson's chi-square test (χ2 (12, N = 337) = 73.353, p < .001) comparing the number of tattooed and non-tattooed people in the respective age groups showed that the age group 20–24 years comprised a comparable number of tattooed (n = 67) and non-tattooed (n = 69) individuals, and likewise all 5-year intervals spanning 30–54 years (n tattoo = 37, n non-tattoo = 33) which is why these semi-decades were joint into one larger age group. Hence, we compared the Top 7 life events of tattooed and non-tattooed participants in the age group 20–24 years, and the larger age group 30–54 years. All other 5-year intervals did not comprise a comparable number of tattooed and non-tattooed participants and were hence excluded from this analysis. Age group 20–24 years provided 946 Top 7 life events (n tattoo = 469, n non-tattoo = 477). Age group 30–54 years listed 482 Top 7 life events (n tattoo = 257, n non-tattoo = 225).

Frequency analyses, independent samples t-tests, and Pearson's chi-square tests were computed. Significant chi-square tests indicate a dependency of mnemonic characteristics on the subsample. In the case of significant chi-square tests, we conducted the chi-square post-hoc pairwise comparisons using Bonferroni correction (MacDonald and Gardner Reference MacDonald and Gardner2000) and considered the odds ratio and the Φ-coefficient as a measure of effect size (Eid et al. Reference Eid, Gollwitzer and Schmitt2017). If the expected frequencies were less than five, Fisher's exact tests instead of Pearson's chi-square tests were calculated. In case of significant Fisher's exact tests, we conducted Fisher's post-hoc pairwise comparisons using Bonferroni correction (MacDonald and Gardner Reference MacDonald and Gardner2000).

Content

Looking at the content categories of Top 7 life events for participants between the age of 20 and 24 years in both subsamples, Fisher's exact test revealed a significant relationship between the content of the Top 7 life events and subsample (p < .001). Figure 2 displays the relative frequency of the main content categories of Top 7 life events of tattooed and non-tattooed individuals in this age group. The Fisher's post-hoc test showed that the tattooed participants mentioned work- related events significantly more often among their seven most important memories than non-tattooed individuals (p = .001), especially settling on a career (p = .049). Furthermore, the event of getting the tattoo became very important for some of the tattooed individuals, which is why they listed this event among their Top 7 life events, obviously more often than their non-tattooed fellows (p = .004). No other differences in content could be found between the groups. Participants of both subsamples reported school events (tattooed: 18.6 per cent, non-tattooed: 19.5 per cent) as well as relationship events (tattooed: 14.9 per cent, non-tattooed: 15.7 per cent) most often among their Top 7 memories (Figure 2).

Figure 2. Relative frequency in the percentage of the main content categories of all 946 Top 7 life events of tattooed (n = 469) and non-tattooed participants (n = 477) aged 20–24 years.

Looking at the content categories of Top 7 life events for participants between the age of 30 and 54 years in both subsamples, Fisher's exact test revealed no significant relationship between the content of the Top 7 life events and subsample, p = .401. Figure 3 displays the relative frequency of the main content categories of Top 7 life events of tattooed and non-tattooed individuals in this age group. Tattooed participants in this age category reported relationship events (17.5 per cent) and deaths (11.7 per cent) most often among their Top 7 memories. Non-tattooed participants named mostly school (15.0 per cent) and relationship (11.8 per cent) events among their Top 7 life events.

Figure 3. Relative frequency in the percentage of the main content categories of all 482 Top 7 life events of tattooed (n = 257) and non-tattooed participants (n = 225) aged 30–54 years.

Normativity

Excluding the 12 cases (1.3 per cent) recounting the mere body modification, the average normativity of the age group 20–24 years was M = .392 (SD = .210) for the 67 tattooed participants and M = .302 (SD = .210) for the 69 non-tattooed participants. According to an independent t-test, this mean difference between both subsamples was significant, t(134) = −2.499, p = .014, Cohen's d = .429. Thus, tattooed participants aged 20–24 years reported more normative Top 7 life events than non-tattooed participants of the same age group.

For participants aged 30–54 years, when excluding the two cases (0.4 per cent) recounting the mere body modification, the average normativity was M = .413 (SD = .253) for the 37 tattooed participants and M = .416 (SD = .293) for the 33 non-tattooed participants. According to an independent t-test, both subsamples did not significantly differ in the normativity of Top 7 life events, t(68) = −.038, p = .970, Cohen's d = −.009.

Age at the time of the event

Comparing the age at the time of Top 7 events of participants aged 20–24 years between the subsamples by a series of independent samples t-tests revealed differences only for non-specific but no other events (Table 1).

Table 1. Mean and standard deviation of age at the time of the event of Top 7 life events compared between tattooed and non-tattooed participants aged 20–24 years

Notes: *p < .05, **p < .003 Bonferroni corrected.

Comparing the age at the time of Top 7 events of participants aged 30–54 years between the subsamples revealed differences only for the content category illness/accident (Table 2). Non-tattooed participants seemed to be significantly younger when having experienced an illness or accident. No other significant differences between the subsamples could be found.

Table 2. Mean and standard deviation of age at the time of the event of Top 7 life events compared between tattooed and non-tattooed participants aged 30–54 years

Notes: *p < .05, **p < .003 Bonferroni corrected.

Stressfulness of event

Regarding the stressfulness of events, 48.4 per cent (n = 227) of Top 7 life events of tattooed and 42.9 per cent (n = 207) of Top 7 life events of non-tattooed participants aged 20–24 years could be assigned an associated readjustment score (see Appendix Table A1).

Analysing the data at person level, the mean readjustment score for the age group 20–24 years was M = 41.48 (SD = 11.62, range 26.00–78.00) for the 67 tattooed participants and M = 48.95 (SD = 13.68, range 26.00–78.00) for the included 68 non-tattooed participants aged 20–24 years. An independent samples t-test revealed a significant difference between the readjustment scores in the tattooed and non-tattooed subsamples, t(133) = −3.420, p < .001, Cohen's d = −.589). Non-tattooed participants aged 20–24 years listed more stressful Top 7 live events in this age group than tattooed participants.

About 58.3 per cent (n = 151) and 54.1 per cent (n = 125) of Top 7 life events of tattooed and non-tattooed participants aged 30–54 years could be classified as stressful life events and assigned an associated readjustment score (see Appendix Table A1). The mean readjustment score for the included 37 tattooed participants was M = 50.50 (SD = 12.68, range 27.20–83.00) and for the 32 included non-tattooed participants M = 48.73 (SD = 11.57, range 28.00–72.25). The independent samples t-test revealed no significant difference between the readjustment scores in the tattooed and non-tattooed subsample aged 30–54 years, t(67) = .600, p = .550, Cohen's d = .145.

Altogether, the life events that tattooed and non-tattooed individuals aged 20–24 years considered important were somewhat different in content, normativity, and stressfulness but not in the timing of the event. More specifically, tattooed individuals aged 20–24 years named different and more normative, but slightly less stressful life events among their Top 7 life events compared to non-tattooed individuals of the same age. For tattooed and non-tattooed individuals aged 30–54 years, no differences were found regarding the mnemonic characteristics of life events. Nevertheless, tattooed individuals decided to embody some of these important events in the form of tattoos, while the non-tattooed individuals in these age groups did not do so. It seems as if the choice to perpetuate some important life events in the form of a tattoo is driven by other, probably more personal motivations rather than mnemonic characteristics of important life events.

Alternative ways of remembering

We therefore explored the reasons of why non-tattooed individuals did not (yet) have a tattoo at the time of data collection. The most frequently reported reasons were the aesthetical dislike (34.1 per cent), the intimidating permanence of tattoos (27.4 per cent), but also the still ongoing decision process or the saving of the necessary money (21.8 per cent) that had prevented non-tattooed participants to get a tattoo by the time of our study. Other, less frequently mentioned reasons were health risks or the fear of pain (7.3 per cent), the fear of social stigma (3.9 per cent), the wish to go against the trend of tattooing (1.1 per cent), or religious constraints (0.6 per cent).

Subsequently, we asked non-tattooed participants for their ways to remember important life events. Non-tattooed participants mainly use photos and videos (56.6 per cent) as well as mental visual imagery (20.6 per cent) to remember their important life events. Other, less frequent ways to reminisce were souvenirs (5.7 per cent), conversations with others (5.1 per cent), sensual or spatial stimuli (4.6 per cent), anniversaries or similar or consequential events (2.3 per cent), diaries and letters (1.1 per cent), and bodily reminders such as scars, pain, or implants (0.6 per cent). Only 3.4 per cent of non-tattooed participants indicated to have other or no ways to remember their important memories.

Discussion

Our study explored the potential function of tattoos to embody autobiographical memories. Results showed that around 80 per cent of tattoos related to autobiographical background, thus joining the findings of previous small case studies (e.g., Kosut Reference Kosut2000; Oksanen and Turtiainen Reference Oksanen and Turtiainen2005; Steadman et al. Reference Steadman, Banister and Medway2019; Velliquette et al. Reference Velliquette, Murray and Evers2006). Apparently, tattoos are not only a fashion phenomenon, but also have autobiographical meaning for the tattooed individual. A tattoo represents almost always a narrative of its holder and contains personal meaning (Kosut Reference Kosut2000; Patterson Reference Patterson2018; Wohlrab et al. Reference Wohlrab, Stahl and Kappeler2007).

Accordingly, we further aimed to understand which events have such significance in a person's life that they get perpetuated in the form of tattoos. Previous research on tattoos and their relationship to life events suggested that both idiosyncratic and normative life events are depicted in tattoos (see Oksanen and Turtiainen Reference Oksanen and Turtiainen2005; Steadman et al. Reference Steadman, Banister and Medway2019). Approximately more than two-thirds of the life events that motivated a tattoo in our study were idiosyncratic and referred mostly to family events, losses, leisure activities or events, relationships, personal development and aging, diseases, or non-specific events like current values or spirituality (Figure 1). This finding appears to be coherent with motivations for tattoos according to which tattoos serve foremost to mark individuality and to display the self (Höhner et al. Reference Höhner, Teismann and Willutzki2014; Tiggemann and Hopkins Reference Tiggemann and Hopkins2011). The life events that motivated a tattoo are hence those that distinguish the individual rather than those that identify the person as part of a society or culture.

Tattoos in this study represented autobiographical memories, which individuals considered unique and personally important to their lives and identity. Because a tattoo remains for a lifetime, independent of potential changes in body, skin, attitudes, or relationships, it appears as if these individuals aim to perpetuate the idiosyncratic parts of their life stories in a manner that is inseparable from the self. In this regard, the tattoo can also take on the function of a personal object that helps holding on to personal memories that should not get lost and will keep meaning for a lifetime (Çili Reference Çili, Slater, Atkin and Kealy-Morris2023; Habermas Reference Habermas and Lindemann2011). Reminding of past experiences and selves, tattoos can thus serve as extensions of the self that converge body and autobiography (Csikszentmihalyi and Rochberg-Halton Reference Csikszentmihalyi and Rochberg-Halton1981; Dittmar Reference Dittmar1992; Miller Reference Miller2008, Reference Miller2010; Van den Hoven et al. Reference Van den Hoven, Orth and Zijlema2021) just as other material possessions can become a ‘personal archive or museum’ (Belk Reference Belk1988, p. 159). In (post)modern age with changing life conditions, unstable values, constant demands of flexibility, and with very few stable cultural norms for guidance (e.g., Giddens Reference Giddens1991), tattoos seem particularly suited to express and stabilize one's identity and may strengthen one's self. Rohr (Reference Rohr, Decker and Türcke2019) therefore also interprets tattoos as a form of ‘autoinitiation’. By consciously deciding on a motif and its expressiveness, tattoos seem specifically linked to important life events in similar ways as other memory objects and become tools for identity formation (Martin Reference Martin2018).

However, our findings also demonstrate that tattoos are not only worn to express individuality but to emphasize social connections and togetherness since various relationships with significant others were the most prominent content categories among the tattoo narratives. These social connections may be with family, kin, friends, groups of like style, and political or religious points of view. Thus, even if the appearance of the tattoo is unique and individual, reasons to wear and possess it may also be social. Just like Ahde-Deal (Reference Ahde-Deal2013) and Habermas (Reference Habermas and Lindemann2011) found for jewelry, both personal memories and social connections play important roles in how tattoos become meaningful.

To get a better idea of why some people choose to perpetuate life events in the form of tattoos and others do not, we further explored whether the important life events of tattooed and non-tattooed individuals differ. When comparing the mnemonic characteristics of important life events of young tattoo holders (20–24 years of age) to those of their fellow non-tattoo holders, significant differences in content, normativity, and stressfulness, but not in age at the time of the event emerged. Tattooed individuals aged 20–24 years more often mentioned work-related events, especially settling on a career, than their fellow non-tattooed participants. Additionally, some of the tattooed individuals in this age group named the event of getting a tattoo among their Top 7 life events indicating that the tattoos have obviously taken on an important meaning in the life stories of their holders. However, possible reasons why the story of tattoo acquisition became so meaningful were not investigated in this study and therefore remain the subject of future research.

Although young tattooed individuals named normative events more frequently among their most important life events than non-tattooed individuals, they tended nevertheless to perpetuate mostly non-normative events in their tattoos. This might be because any other person of their culture could have experienced a normative event in a similar way as normative events structure life (Bohn and Habermas Reference Bohn and Habermas2016; Brown Reference Brown2016). While normative transitions such as leaving school/starting college or marriage are very important to most people, they do not distinguish them from other people. Indeed, the average normativity of Top 7 events of the tattooed subsamples in both age groups (20–24 years and 30–54 years) was almost three times higher than the mean normativity of their tattoo events. Both age groups seemed to dedicate tattoos to events they perceive as more unique, emphasizing the tattoos’ function to express individuality (Höhner et al. Reference Höhner, Teismann and Willutzki2014; Tiggemann and Hopkins Reference Tiggemann and Hopkins2011). This seems to be especially true for young adults, since no differences in the mnemonic characteristics of the Top 7 life events could be found between tattooed and non-tattooed individuals later in life (30–54 years of age).

The need to express individuality found in the younger age group fits moreover the psychosocial urge of exploring identity which is characteristic for emerging adulthood (Arnett Reference Arnett2007). This phase is considered a particularly critical period for ego identity development as emerging adults are expected to explore and eventually commit to various identity domains such as work, love, religion, morality, and values. Later into young adulthood, individuals are compelled to find a healthy balance between intimacy and egocentricity (Erikson Reference Erikson2017), which could also affect the content of tattoo narratives and the ways in which tattoos become meaningful. Unfortunately, we were not able to compare participants for the age group 25–29 years due to significantly different numbers of tattooed and non-tattooed individuals. However, defining and committing to an autonomous adult identity constitutes a psychosocial crisis that is often accompanied by identity distress (Camia et al. Reference Camia, Motiani and Waters2022; Merrill et al. Reference Merrill, Waters and Fivush2016). Hence, memory objects and tattoos could be especially helpful in the phase of emerging and young adulthood to ground identity and provide a sense of continuity and interpersonal relatedness (Habermas Reference Habermas1999; Habermas and Paha Reference Habermas, Paha, Webster and Haight2010). Indeed, it may be the notion of permanence that appeals emerging and young adults to perpetuate life events and hence stabilize identity in the form of tattoos as our content analysis showed that tattoo events were mostly associated with highly identity-relevant events and relationships (e.g., important family situations or relationship events, losses or diseases, leisure activities, personal development). Whether this attempt at self-definition is successful in the long run remains to be answered by further investigations.

Although research suggests that individuals use tattoos not only to remind themselves of their past, but also to regulate and cope with their emotions (Höhner et al. Reference Höhner, Teismann and Willutzki2014; Keagy Reference Keagy2015; Maxwell et al. Reference Maxwell, Thomas and Thomas2019; Stirn Reference Stirn2003), our results did not confirm that tattooed individuals experience more stressful life paths than non-tattoo holders. In contrast, we observed less stressful Top 7 events in tattooed individuals aged 20–24 years than in the non-tattooed individuals of the same age, and equal stressfulness among the Top 7 events of participants in the older age group (ages 30–54). However, these results should be interpreted with great caution. Although the SRRS-R is a practical and valid tool for measuring levels of readjustment after experiencing stressful events (Arric et al. Reference Arric, Young, Harris and Farrow2011; McGrath and Burkhart Reference McGrath and Burkhart1983; Scully et al. Reference Scully, Tosi and Banning2000), only 20 per cent of our content categories for tattoo events and around 50 per cent of Top 7 life events could be matched with the list provided by Hobson and colleagues (Reference Hobson, Kamen, Szostek, Nethercut, Tiedmann and Wojnarowicz1998). Future studies should consider rather participants’ self-ratings of the stressfulness of events to better understand the stressfulness of tattoo vs. non-tattoo events.

Despite the mnemonic differences in important memories of tattooed and non-tattooed individuals aged 20–24 years, it might also be personal preference determining the decision of embodying particular memories in the form of tattoos. Especially with increasing age, mnemonic characteristics of events seem to become less relevant and personal motivations appear to play a bigger role in the question of why certain people get tattoos for an important life event and others do not. Other factors such as personality traits (e.g., extraversion, sensation seeking, need for uniqueness), values, concerns, culture, or other highly individual motivations (e.g. self-expression) need to be considered when investigating the decision for and the importance of a tattoo (Swami Reference Swami2012; Swami et al. Reference Swami2012; Tate and Shelton Reference Tate and Shelton2008; Wohlrab et al. Reference Wohlrab, Stahl and Kappeler2007). Motivations for which people get tattoos are often multiple and can change over time for the same individual. There is no specific profile of tattooed individuals but a rather wide spectrum of different types (Kluger, Reference Kluger2015). This highlights the heterogeneity of tattooed people and the need for future research on tattoos as an expression of personality and autobiographical memories.

As much as the permanence of tattoos and the associated permanent change of the body are appealing for tattooed individuals, for non-tattooed participants, it is one of the main reasons for not getting or disliking tattoos. Our non-tattooed participants indicated to mainly use photos or non-material ways like visual imagery to remember important life events. The latter is not surprising since mental imagery is considered a crucial component of vivid remembering (Greenberg and Rubin Reference Greenberg and Rubin2003; Huijbers et al. Reference Huijbers, Cyriel, Rubin and Daselaar2011; Rasmussen and Berntsen Reference Rasmussen and Berntsen2014; Rubin et al. Reference Rubin, Schrauf and Greenberg2003), and a defining characteristic of episodic memory (Tulving Reference Tulving2002; Wheeler et al. Reference Wheeler, Stuss and Tulving1997). Visual imagery can be used to invoke details about an event and to make memories feel more vivid (Greenberg and Rubin Reference Greenberg and Rubin2003; Robinson Reference Robinson, Conway, Rubin, Spinnler and Wagenaar1992; Rubin et al. Reference Rubin, Schrauf and Greenberg2003).

However, Habermas (Reference Habermas1999) argues that sensually present objects convey a better sense of reality and a higher degree of liveliness than mere thoughts. Especially objects worn on or against the body are potent memory objects due to their sensuality and tactility and carry a great emotional charge (Ash Reference Ash and Kirkham1996; Habermas Reference Habermas and Lindemann2011; Lupton Reference Lupton1998; Woodward Reference Woodward2007). Similarly, a tattoo might fulfil the need to create a tangible memory that is moreover the most closely connected to the physical personality (Simmel, Reference Simmel and Lichtblau2023). Anecdotally, one of our participants confirmed this notion by stating ‘I would never forget what happened, but I want to keep the memory as close as possible’. In this regard, tattoos could be considered the most individualized memory objects because the individuals take an active role in the creation of their tattoos and because tattoos are inalienable and irremovable, cannot be put on or taken off according to the situation or inner state, unlike jewelry or clothes (Habermas Reference Habermas and Lindemann2011; Simmel Reference Simmel and Lichtblau2023). Nevertheless, it is highly likely that tattooed individuals use all the same mnemonic aids as non-tattooed participants in addition to their tattoos, which we missed to ask for in this study. Future studies should therefore not only consider differences between tattooed and non-tattooed individuals, but also compare life events associated with different or no memory objects between and within tattooed and non-tattooed samples.

In conclusion, tattoos communicated individuals’ life stories, confirming previous case studies (e.g., Kosut Reference Kosut2000; Oksanen and Turtiainen Reference Oksanen and Turtiainen2005; Steadman et al. Reference Steadman, Banister and Medway2019; Velliquette et al. Reference Velliquette, Murray and Evers2006). As much as memory objects are part of individuals’ reality, tattoos appear to be one of the rare forms to literally embody autobiographical memories. It seems thus worthwhile to consider memory objects and tattoos as valid research tools in research on autobiographical memory.

Data availability statement

To protect confidentiality of participants, none of the narrative material is publicly available and numerical data is available only upon reasonable request

Acknowledgements

We thank Julia Bloß and Elisabeth F. Burkhardt for the help with data collection and narrative coding. We also thank Pius Reuling and Annika Hensel for the help with narrative coding.

The present study was not preregistered in any independent, institutional registry.

Author contributions

CC and SR designed the study and collected the data. KK and CC prepared the data, conducted statistical analyses, and wrote the manuscript, for which SR gave feedback. KK and CC finalized the manuscript.

Funding statement

This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

Competing interest

Kristina Klug, Christin Camia, and Sonja Rohrmann declare that they have no conflict of interest.

Open practices statement

To protect the confidentiality of participants, none of the narrative material is publicly available and numerical data is available only upon reasonable request. The study was not preregistered.

Kristina Klug (Goethe University Frankfurt) has been working as a research assistant and PhD student in the Department of Differential Psychology and Psychological Diagnostics at the Goethe University Frankfurt since August 2019. In her research, she focuses mainly on autobiographical memory, life stories as well as body modifications (specifically on tattoos as a form of embodied AM).

Christin Camia (Zayed University Abu Dhabi), PhD, has been appointed Assistant Professor of Psychology in the College of Natural and Health Sciences in Zayed University in 2019. Her areas of competence are developmental, social and cognitive psychology as well as personality and identity theory. In her research, she mainly focuses on the role of autobiographical memory and life story for people's identity development.

Sonja Rohrmann (Goethe University Frankfurt), PhD, is head of the Department of Personality Psychology and Psychological Diagnostics at the Goethe University Frankfurt. In her research she mainly focuses on personality, stress, and emotions.

Appendix

Table A1. Absolute N (and relative frequency) of all event categories of tattoo events and Top 7 life events of tattooed and non-tattooed participants

Footnotes

1 Only content categories that were mentioned by the sample are listed here.

2 Normative events in bold.

3 Stress score according to Hobson et al. (Reference Hobson, Kamen, Szostek, Nethercut, Tiedmann and Wojnarowicz1998) depending on individual narrative.

4 p < .05.

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Figure 0

Figure 1. Relative frequency in the percentage of the main content categories of all tattoo events.

Figure 1

Figure 2. Relative frequency in the percentage of the main content categories of all 946 Top 7 life events of tattooed (n = 469) and non-tattooed participants (n = 477) aged 20–24 years.

Figure 2

Figure 3. Relative frequency in the percentage of the main content categories of all 482 Top 7 life events of tattooed (n = 257) and non-tattooed participants (n = 225) aged 30–54 years.

Figure 3

Table 1. Mean and standard deviation of age at the time of the event of Top 7 life events compared between tattooed and non-tattooed participants aged 20–24 years

Figure 4

Table 2. Mean and standard deviation of age at the time of the event of Top 7 life events compared between tattooed and non-tattooed participants aged 30–54 years

Figure 5

Table A1. Absolute N (and relative frequency) of all event categories of tattoo events and Top 7 life events of tattooed and non-tattooed participants