Skip to main content Accessibility help
×
Home

Amnestic people with Alzheimer's disease who remembered the Kobe earthquake

  • Manabu Ikeda (a1), Etsuro Mori (a1), Nobutsugu Hirono (a1), Toru Imamura (a1), Tatsuo Shimomura (a1), Yoshitaka Ikejiri (a1) and Hikari Yamashita (a1)...

Abstract

Background

Emotional memory is a special category of memory for events arousing strong emotions. To investigate the effects of emotional involvement on memory retention in individuals with Alzheimer's disease we studied peoples' memories of distressing experiences during a devastating earthquake.

Method

Fifty-one subjects with probable Alzheimer's disease who experienced the Kobe earthquake at home in the greater Kobe area were studied. Memories of the earthquake were assessed 6 and 10 weeks after the disaster in semi-structured interviews, and were compared with memories of a magnetic resonance imaging (MRI) examination given after the earthquake.

Results

Forty-four (86.3%) of the subjects remembered the earthquake and 16 (31.4%) of subjects remembered the MRI experience. Factual content of the earthquake was lost in most of the subjects.

Conclusions

Fear reinforces memory retention of an episode in subjects with Alzheimer's disease but does not enhance retention of its context, despite repeated exposure to the information.

Copyright

Corresponding author

Manabu Ikeda, MD, Department of Neuropsychiatry. Ehime University School of Medicine. Shigenobu. Onsengun Ehime 791-0295. Japan. Tel: 81-89-960-5315. Fax: 81-89-960-5317. e-mail: mikeda@m.ehime-u.ac.jp

Footnotes

Hide All

See editorial pp. 379–380. this issue.

Footnotes

References

Hide All
Albert, M. S. & Moss, M. B. (1992) The assessment of memory disorders in patients with Alzheimer's disease. In Neuropsychology of Memory (2nd edn) (eds L. R. Squire & N. Butters), pp. 211219. New York: Guilford Press.
American Psychiatric Association (1994) Diagnostic and Statistical Manual of Mental Disorders (4th edn) (DSM–IV). Washington, DC: APA.
Cahill, L., Babinsky, R., Markowitsch, H. J., et al (1995) The amygdala and emotional memory. Nature, 377, 295296.
Cardeña, E. & Spiegel, D. (1993) Dissociative reactions to the San Francisco Bay Area earthquake of 1989. American Journal of Psychiatry, 150, 474478.
Daum, I., Flor, H., Brodbeck, S., et al (1996) Autobiographical memory for emotional events in amnesia. behavioural Neurology, 9, 5767.
Folstein, M. F., Folstein, S. E. & McHugh, P. R. (1975) Mini-Mental State: a practical method for grading the cognitive state of patients for the clinician. Journal of Psychiatric Research. 12, 189198.
Hughes, C. P., Berg, L., Danziger, W. L., et al (1982) A new clinical scale for staging of dementia. British Journal of Psychiatry, 140, 566572.
Japan Times (1995) The Japan Times Special Report: The Great Hanshin Quake. Tokyo: JapanTimes.
LeDoux, J. E. (1993) Emotional memory systems in the brain. Behavioural Brain Research. 58, 6979.
McKhann, G., Drachman, D., Folstein, M., et al (1984) Clinical diagnosis of Alzheimer's disease: report for the NINCDS-ADRDA work group under the auspices of Department of Health and Human Services Task Force on Alzheimer's disease. Neurology, 34, 939944.
Meiéndez, J. C. & McCrank, E. (1993) Anxiety-related reactions associated with magnetic resonance imaging examination. Journal of the American Medical Association, 270, 745747.
Popovic, M. & Petrovic, D. (1944) After the earthquake. Lancet, II, 11691171.
Rosen, W. G., Mohs, R. C. & Davis, K. L. (1984) A new rating scale for Alzheimer's disease. American Journal of Psychiatry, 141, 13561364.
Squire, L. R. (1992) Memory and the hippocampus: a synthesis from findings with rats, monkeys, and humans. Psychologicol Review, 99, 195231.

Amnestic people with Alzheimer's disease who remembered the Kobe earthquake

  • Manabu Ikeda (a1), Etsuro Mori (a1), Nobutsugu Hirono (a1), Toru Imamura (a1), Tatsuo Shimomura (a1), Yoshitaka Ikejiri (a1) and Hikari Yamashita (a1)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed

Amnestic people with Alzheimer's disease who remembered the Kobe earthquake

  • Manabu Ikeda (a1), Etsuro Mori (a1), Nobutsugu Hirono (a1), Toru Imamura (a1), Tatsuo Shimomura (a1), Yoshitaka Ikejiri (a1) and Hikari Yamashita (a1)...
Submit a response

eLetters

No eLetters have been published for this article.

×

Reply to: Submit a response


Your details


Conflicting interests

Do you have any conflicting interests? *