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Affective learning and psychophysiological reactivity in dementia patients


Blessing, Andreas; Keil, Andreas; Gruss, L Forest; Zöllig, Jacqueline; Dammann, Gerhard; Martin, Mike (2012). Affective learning and psychophysiological reactivity in dementia patients. International journal of Alzheimer's disease, 2012:1-9.

Abstract

We examined the association of faces with biographical information that varied in emotional content in patients with Alzheimer's disease and a healthy control group. During two experimental sessions, participants rated neutral male faces on dimensions of hedonic valence and emotional arousal, later paired with fictitious biographical information. Both groups changed their ratings of the faces according to the biographical content. Free recall and recognition were tested in the second session. Patients neither recalled the biographical information nor recognized the faces, whereas the controls did. In addition, psychophysiological measures were taken in response to the face stimuli. Patients showed significant heart rate modulation as a function of their emotion ratings, whereas the controls did not. No correlation of rating changes with skin conductance was found in any group. Results suggest that psychophysiological reactions such as heart rate changes may indicate preserved affective associative learning in dementia patients despite impaired explicit memory.

Abstract

We examined the association of faces with biographical information that varied in emotional content in patients with Alzheimer's disease and a healthy control group. During two experimental sessions, participants rated neutral male faces on dimensions of hedonic valence and emotional arousal, later paired with fictitious biographical information. Both groups changed their ratings of the faces according to the biographical content. Free recall and recognition were tested in the second session. Patients neither recalled the biographical information nor recognized the faces, whereas the controls did. In addition, psychophysiological measures were taken in response to the face stimuli. Patients showed significant heart rate modulation as a function of their emotion ratings, whereas the controls did not. No correlation of rating changes with skin conductance was found in any group. Results suggest that psychophysiological reactions such as heart rate changes may indicate preserved affective associative learning in dementia patients despite impaired explicit memory.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:06 Faculty of Arts > Institute of Psychology
Dewey Decimal Classification:150 Psychology
Language:English
Date:2012
Deposited On:10 Apr 2012 12:39
Last Modified:04 Aug 2017 10:14
Publisher:Hindawi Publishing Corporation
ISSN:2090-0252
Free access at:PubMed ID. An embargo period may apply.
Publisher DOI:https://doi.org/10.1155/2012/672927
Official URL:http://www.hindawi.com/journals/ijad/2012/672927/
PubMed ID:22482076

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