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One key objective of management research is to explain business phenomena. Yet understanding the nature of explanation is essentially a topic in philosophy. This is the first book that bridges the gap between a technical, philosophical treatment of the topic and the more practical needs of management scholars, as well as others across the social sciences. It explores how management phenomena can be explained from a philosophical perspective, and renders sophisticated philosophical arguments understandable by readers without specialized training. Covering virtually all the major aspects of the nature of explanation, this work will enhance empirical and theoretical research, as well as approaches combining the two. With many examples from management literature and business news, this study helps scholars in those fields to improve their research outcomes.
Observational research, mainly prospective cohort studies (PCS), has represented a long-standing challenge for those attempting to draw up consistent policy recommendations in the area of diet and health. This has been due to the inherent limitations in ascribing causality from observed associations due to problems of confounding of the findings and publication and citation bias. Developments in nutritional epidemiology research over the past 20–30 years have enabled causal criteria to be derived from observational studies and the totality of the primary literature to be reviewed objectively, reducing previous focus on narrative accounts of individual studies. The gold standard approach to assessing causal relationships is via randomised controlled trials (RCT), but neither RCT nor PCS provide direct evidence for biological plausibility, which is a key criterion for assessing causality. Although extensive mechanistic data are available in the literature, a systematic approach to select and assess quality and relevance of published studies has not been available. This limits their use in the development of diet and health policy. Recent studies have investigated a proposed two-step framework and novel methodologies for integrating heterogeneous data from cell, animal and human studies. Pilot and feasibility studies have shown this to be a useful novel approach to studies of diet and cancer, but further refinements are required, including development of appropriate quality criteria which are less dependent on RCT designs. Future studies are needed to fully verify the approach and its potential for use in other diet–disease relationships.
This Element introduces and critically reflects on the contribution of implementation science to healthcare improvement efforts. Grounded in several disciplines, implementation science is the study of strategies to promote the uptake of evidence-based interventions into healthcare practice and policy. The field's focus is threefold. First, it encompasses theory and empirical research focused on exploring, identifying, and understanding the systems, behaviours, and practices that influence successful implementation. Second, it examines the evaluation of strategies to address barriers or enablers to implementation in a given context. Last, it increasingly seeks to understand the process of implementation itself: what actually gets implemented, and when, why, and how? Despite the growing body of evidence, challenges remain. Many important messages remain buried in the literature, and their impact on implementation efforts in routine practice may be limited. The challenge is not just to get evidence into practice, but also to get implementation science into practice. This title is also available as Open Access on Cambridge Core.
Enhancing understanding of depression symptom interactions between parents and associations with subsequent child emotional difficulties will inform targeted treatment of depression to prevent transmission within families.
Objectives
To use a network approach to identify ‘bridge’ symptoms that reinforce mother and father depression, and whether bridge symptoms, as well as other symptoms, impact subsequent child emotional difficulties.
Methods
Symptoms were examined using two unregularized partial correlation network models. The study included 4,492 mother-father-child trios from a prospective, population-based cohort in the United Kingdom. Mother and father reports of depression symptoms were assessed when the child was twenty-one months old. Child emotional difficulties were reported by the mother at ages nine, eleven and thirteen years.
Results
Bridge symptoms mutually reinforcing mother and father depression symptoms were feelings of guilt and self-harm ideation, whereas anhedonia acted as a bridge from the father to the mother, but not vice-versa (fig.1, network 1). The symptom of feelings of guilt in mothers was the only bridge symptom which directly associated with child emotional difficulties. Other symptoms that directly associated with child emotional difficulties were feeling overwhelmed for fathers and anhedonia, sadness, and panic in mothers (fig.1, network 2).
Conclusions
Specific symptom interactions are central to the co-occurrence of depression symptoms between parents. Of interest, only one of the bridge symptoms associated with later child emotional difficulties. In addition, specific symptom-to-child outcomes were identified, suggesting that different symptoms in mothers and fathers are central for increased vulnerability in children.
Demystifying Emotions provides a comprehensive typology of emotion theories in psychology (evolutionary, network, appraisal, goal-directed, psychological constructionist, and social) and philosophy (feeling, judgmental, quasi-judgmental, perceptual, embodied, and motivational) in a systematic manner with the help of tools from philosophy of science, allowing scholars in both fields to understand the commonalities and differences between these theories. Agnes Moors also proposes her own novel, skeptical theory of emotions, called the goal-directed theory, based on the central idea that all kinds of behaviors and feelings are grounded in goal-striving. Whereas most scholars of emotion do not call the notion of emotion itself into question, this review engages in a critical examination of its scientific legitimacy. This book will appeal to readers in psychology, philosophy, and related disciplines who want to gain a deeper understanding of the controversies at play in the emotion domain.
The Introduction recounts the main aspects of the recent revival of the mechanical philosophy and outlines the main theses of the book (i.e., Causal Mechanism and Methodological Mechanism). It presents briefly the case for understanding mechanism as a methodological concept, introduces the main concepts and distinctions that will be discussed in the book, provides an outline of the central arguments and presents a summary of the chapters.
In Chapter 8 we examine Carl Craver’s well-known account of constitutive mechanisms, which takes the organised entities and activities that are the components of the mechanism to constitute the phenomenon to be explained. The main aim of the chapter is to criticise the adequacy of this view for illuminating mechanism as a concept-in-use in biological practice. We identify two main problems for the constitutive view: the problem of external components and the fact that some mechanisms can exist outside the entity the behaviour of which they underlie; we argue that both problems undermine the usefulness and appropriateness of viewing typical and paradigmatic cases of biological mechanisms in constitutive terms. The main claim of the chapter is that in order to understand the notion of mechanism as a concept-in-use, there is no need to posit a non-causal relation of constitution.
In Chapter 6, we defend the difference-making thesis of Causal Mechanism, that is, the view that mechanisms are underpinned by networks of difference-making relations, by showing that difference-making is more fundamental than production in understanding mechanistic causation. Our argument is two-fold. First, we criticise Stuart Glennan’s claim that mechanisms can be viewed as the truth-makers of counterfactuals and argue that counterfactuals should be viewed as metaphysically more fundamental. Second, we argue against the view that the productivity of mechanisms requires thinking of them as involving activities, qua a different ontic category. We criticise two different routes to activities: Glennan’s top-down approach and Phyllis Illari and Jon Williamson’s bottom-up approach. Given these difficulties with activities and mechanistic production, it seems more promising to start with difference-making and give an account of mechanisms in terms of it.
In Chapter 5, we examine the relation between mechanisms and laws/counterfactuals by revisiting the main notions of mechanism found in the literature. We distinguish between two different conceptions of ‘mechanism’: mechanisms-of and mechanisms-for. We argue that for both mechanisms-of and mechanisms-for, counterfactuals and laws are central for understanding within-mechanism interactions. Concerning mechanisms-for, we claim that the existence of irregular mechanisms is compatible with the view that mechanisms operate according to laws. The discussion in this chapter, then, points to an asymmetrical dependence between mechanisms and laws/counterfactuals: while some laws and counterfactuals must be taken as primitive (non-mechanistic) facts of the world, all mechanisms depend on laws/counterfactuals.
Given the centrality of counterfactual difference-making relations to the argument of the book, in Chapter 7 we say a few more things about contrary-to-fact conditionals. We offer a primer on the logic and the semantics of counterfactuals, focusing on the two main schools of thought: the metalinguistic and the possible-worlds approach. We also present and examine James Woodward’s interventionist counterfactuals and the Rubin-Holland model. We argue that the counterfactual approach is more basic than the mechanistic, but information about mechanisms can help sort out some of the methodological problems faced by the counterfactual account.
In recent years what has come to be called the 'New Mechanism' has emerged as a framework for thinking about the philosophical assumptions underlying many areas of science, especially in sciences such as biology, neuroscience, and psychology. This book offers a fresh look at the role of mechanisms, by situating novel analyses of central philosophical issues related to mechanisms within a rich historical perspective of the concept of mechanism as well as detailed case studies of biological mechanisms (such as apoptosis). It develops a new position, Methodological Mechanism, according to which mechanisms are to be viewed as causal pathways that are theoretically described and are underpinned by networks of difference-making relations. In contrast to metaphysically inflated accounts, this study characterises mechanism as a concept-in-use in science that is deflationary and metaphysically neutral, but still methodologically useful and central to scientific practice.
Authoritarian regimes vary with respect to regime–opposition relations, along a continuum of more open to more closed, focusing on the degree of competition the regime permits during elections. The particular political opportunity structure facing any individual opposition group varies according to the strategies that the regime uses in dealing with that particular group: inclusion, co-optation, or exclusion. The microfoundations of both party formation and political mobilization do not operate in isolation or in the same way as they do in established democracies, but in fact interact with the effects of the political opportunity structure that existed during the prior authoritarian era. An examination of the common competing explanations for party formation and political mobilization show that, while each explanation arguably does play a role in shaping these outcomes, they are limited in their comparative utility and frequently fail to explain the actual variation observed in these cases. Instead, mechanisms link the structure of state–opposition relations and the political opportunity structure facing different groups to their relative decisions around party formation as well as to the tactics and effectiveness of political mobilization in founding elections. Finally, the common causes of opposition group dissolution interact with the opportunity structure of the authoritarian era.
Chapter 7 concludes the book by revisiting key claims and discussing the implications of the research for broader debates in the fields of comparative politics, social movements, and democracy-promotion activities. Here we see that much of the focus of democracy promotion institutions and programs may be misplaced. Rather than focusing on existing political parties in hybrid regimes, as many democracy-promotion programs do, it is repressed societal actors that are more likely to mobilize supporters, win elections, and form the first government after an authoritarian ouster. These are the individuals and groups most in need of skills-building and governance training. Furthermore, much of the programmatic emphasis of democracy-promotion work falls on enhancing the “liberal” qualities of democracy: freedom of speech, human rights, inclusion of women and minorities, and the protection of civil liberties. However, what the cases here show is that democratic consolidation is most threatened by unmet benchmarks in economic and physical security after the fall of an authoritarian regime. When these benchmarks are not met, the support for democracy declines and a wedge is opened for the return of authoritarian actors. The chapter offers suggestions for future research based upon the findings.
– Comorbidity between psychiatric disorders is extensive but, from a genetic perspective, still poorly understood. Modern molecular genetic approaches to this problem are limited by a reliance on case–control designs.
Methods
– In 5 828 760 individuals born in Sweden from 1932–1995 with a mean (s.d.) age at follow-up of 54.4 (18.1), we examined family genetic risk score (FGRS) profiles including internalizing, psychotic, substance use and developmental disorders in 10 pairs of psychiatric and substance use disorders diagnosed from population registries. We examined these profiles in three groups of patients: disorder A only, disorder B only and comorbid cases with both disorders.
Results
– The most common pattern of findings, seen in five pairings, was simple and quantitative. Comorbid cases had higher FGRS than both non-comorbid cases for all (or nearly all) disorders. However, the pattern was more complex in the remaining five pairings and included qualitative changes where the comorbid cases showed no increases in FGRS for certain disorders and in a few cases significant decreases. Several comparisons showed an asymmetric pattern of findings with increases, in comorbidity compared to single disorder cases, of the FGRS for only one of the two disorders.
Conclusions
– The examination of FGRS profiles in general population samples where all disorders are assessed in all subjects provides a fruitful line of inquiry to understand the origins of psychiatric comorbidity. Further work will be needed, with an expansion of analytic approaches, to gain deeper insights into the complex mechanisms likely involved.
Body dysmorphic disorder (BDD) is a severe and undertreated condition. Although cognitive-behavioral therapy (CBT) is the first-line psychosocial treatment for this common disorder, how the intervention works is insufficiently understood. Specific pathways have been hypothesized, but only one small study has examined the precise nature of treatment effects of CBT, and no prior study has examined the effects of supportive psychotherapy (SPT).
Methods
This study re-examined a large trial (n = 120) comparing CBT to SPT for BDD. Network intervention analyses were used to explore symptom-level data across time. We computed mixed graphical models at multiple time points to examine relative differences in direct and indirect effects of the two interventions.
Results
In the resulting networks, CBT and SPT appeared to differentially target certain symptoms. The largest differences included CBT increasing efforts to disengage from and restructure unhelpful thoughts and resist BDD rituals, while SPT was directly related to improvement in BDD-related insight. Additionally, the time course of differences aligned with the intended targets of CBT; cognitive effects emerged first and behavioral effects second, paralleling cognitive restructuring in earlier sessions and the emphasis on exposure and ritual prevention in later sessions. Differences in favor of CBT were most consistent for behavioral targets.
Conclusions
CBT and SPT primarily affected different symptoms. To improve patient care, the field needs a better understanding of how and when BDD treatments and treatment components succeed. Considering patient experiences at the symptom level and over time can aid in refining or reorganizing treatments to better fit patient needs.
Epilepsy is one of the most common neurological disorders worldwide characterized by unpredictable and recurrent seizures, resulting from abnormal brain activity, accompanied by loss of consciousness and control of bowel or bladder function.
Objectives
A higher risk of comorbid disorders in epilepsy has been reported for psychiatric affective conditions (i.e., depression and schizophrenia), sleep alterations, as well as some gastrointestinal disorders (inflammatory bowel disease and constipation), and lately there is an interest to determine and explain a putative association between functional gastrointestinal disorders (FGID) such as Irritable bowel syndrome (IBS) and epilepsy.
Methods
In this way, we decided to review the current aspects of the gastrointestinal functional impairments and epilepsy by searching in the literature possible connection mechanisms.
Results
A handful of studies have only recently reported an increased prevalence of IBS in epilepsy in children, in adults, and conversely a higher incidence of epilepsy in IBS patients at the populational level. Paroxysmal abdominal complaints resulting from seizure activity are present in the abdominal epilepsy syndrome and the link between constipation and seizures has been demonstrated in animal models. Currently, there is no data to directly address the cellular and molecular connections between epilepsy and FGID, but these would probably involve the bidirectional dysregulation of the brain-gut axis with increased afferent processing of visceral nociceptive signals and subsequent hyperalgesia.
Conclusions
Thus, intestinal dysbiosis may play a role in triggering inflammatory and immune-related mechanisms reported in IBS manifestations and epilepsy, while vagal neuroimunomodulation issues are likely to be involved in both pathologies as well.
Conflict of interest
The authors are currently supported by a Young Research Teams supporting research grant PN-III-P1-1.1-TE2016-1210, named ”Complex study on oxidative stress status, inflammatory processes and neurological manifestations correlations in irritable bowel synd
The prevalent co-occurrence between parental stress and depression has been established prior to and during the COVID-19 pandemic outbreak. However, no studies to date have identified the connections through which these symptom domains interact with each other to emerge into a complex and detrimental mental health state, along with the plausible mechanistic variables that may play key roles in maintaining parental stress and depression. The aim of this research is to uncover these interactions in a period where parents experience heightened demands and stress because of the strict social distancing protocols.
Methods
Network analysis is utilized to examine parental stress and depressive symptoms during the COVID-19 pandemic in a large cross-sectional study (N = 2,868) of parents. Two graphical Gaussian graphical network models were estimated, one in which only parental stress and depression symptoms were included, and another in which several mechanistic variables were added.
Results
Expected influence and bridge expected influence revealed that feeling worthless was the most influential node in the symptoms network and bridged the two psychological states. Among the mechanistic variables, worry and rumination was specifically relevant in the depressive cluster of symptoms, and self-criticism was connected to both constructs.
Conclusion
The study displays that the co-occurrence of parental stress and depression has specific pathways, was manifested through feelings of worthlessness, and has specific patterns of connection to important mechanisms of psychopathology. The results are of utility when aiming to avoid the constellation of co-occurring parental stress and depressive symptoms during the pandemic.
Salt marshes are coastal ecosystems located at the boundary between sea and land, generally in tidal environments, often covered by halophytic vegetation and periodically flooded by tide (Allen 2000).
The search for the mechanisms that drive the species–area relationship (SAR) has been complicated by a number of factors. First, the different proposed mechanisms have generally been considered to be mutually exclusive. Second, due to the misinterpretation of curve shapes after (log) transformation of one or both of the axes. Third, due to confusion about different types of SAR, such as isolate and sample area SARs. These two SAR types are underpinned, at least partly, by different factors (or drivers), which act in combination. The different patterns and processes that drive the SAR can be organized according to a hierarchy: from underlying environmental patterns at the bottom, through the processes driving species diversity patterns, up to the research and sampling design. Environmental patterns include both biological and geographical patterns, while processes may be stochastic, evolutionary or ecological. The resultant species diversity patterns include species range patterns, species densities, species abundances and the spatial distribution of individuals of a species. Although the individuals of a species are rarely randomly distributed in space, the random placement model provides a useful null model that can be used to partition the effects of species abundances and the spatial distributions of individuals on SARs.