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Emotional Memories Are Not All Created Equal: Evidence for Selective Memory Enhancement

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Title: Emotional Memories Are Not All Created Equal: Evidence for Selective Memory Enhancement
Language: English
Authors: Anderson, Adam K., Grabski, Wojtek, Lacka, Dominika
Source: Learning & Memory. Nov-Dec 2006 13(6):711-718.
Availability: Cold Spring Harbor Laboratory Press. 500 Sunnyside Boulevard, Woodbury, NY 11797-2924. Tel: 800-843-4388; 516-367-8800; Fax: 516-422-4097; e-mail: cshpres@cshl.edu; Web site: http://www.learnmem.org/
Peer Reviewed: Y
Physical Description: PDF
Page Count: 8
Publication Date: 2006
Document Type: Journal Articles
Reports - Research
Descriptors: Recognition (Psychology), Recall (Psychology), Human Body, Memory, Psychological Patterns, Arousal Patterns, Brain
DOI: 10.1101/lm.388906
ISSN: 1072-0502
Abstract: Human brain imaging studies have shown that greater amygdala activation to emotional relative to neutral events leads to enhanced episodic memory. Other studies have shown that fearful faces also elicit greater amygdala activation relative to neutral faces. To the extent that amygdala recruitment is sufficient to enhance recollection, these separate lines of evidence predict that recognition memory should be greater for fearful relative to neutral faces. Experiment 1 demonstrated enhanced memory for emotionally negative relative to neutral scenes; however, fearful faces were not subject to enhanced recognition across a variety of delays (15 min to 2 wk). Experiment 2 demonstrated that enhanced delayed recognition for emotional scenes was associated with increased sympathetic autonomic arousal, indexed by the galvanic skin response, relative to fearful faces. These results suggest that while amygdala activation may be necessary, it alone is insufficient to enhance episodic memory formation. It is proposed that a sufficient level of systemic arousal is required to alter memory consolidation resulting in enhanced recollection of emotional events.
Abstractor: Author
Entry Date: 2007
Accession Number: EJ768019
Database: ERIC
FullText Text:
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  Data: Emotional Memories Are Not All Created Equal: Evidence for Selective Memory Enhancement
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  Data: <searchLink fieldCode="SO" term="%22Learning+%26+Memory%22"><i>Learning & Memory</i></searchLink>. Nov-Dec 2006 13(6):711-718.
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  Data: Cold Spring Harbor Laboratory Press. 500 Sunnyside Boulevard, Woodbury, NY 11797-2924. Tel: 800-843-4388; 516-367-8800; Fax: 516-422-4097; e-mail: cshpres@cshl.edu; Web site: http://www.learnmem.org/
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  Data: 10.1101/lm.388906
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  Data: Human brain imaging studies have shown that greater amygdala activation to emotional relative to neutral events leads to enhanced episodic memory. Other studies have shown that fearful faces also elicit greater amygdala activation relative to neutral faces. To the extent that amygdala recruitment is sufficient to enhance recollection, these separate lines of evidence predict that recognition memory should be greater for fearful relative to neutral faces. Experiment 1 demonstrated enhanced memory for emotionally negative relative to neutral scenes; however, fearful faces were not subject to enhanced recognition across a variety of delays (15 min to 2 wk). Experiment 2 demonstrated that enhanced delayed recognition for emotional scenes was associated with increased sympathetic autonomic arousal, indexed by the galvanic skin response, relative to fearful faces. These results suggest that while amygdala activation may be necessary, it alone is insufficient to enhance episodic memory formation. It is proposed that a sufficient level of systemic arousal is required to alter memory consolidation resulting in enhanced recollection of emotional events.
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  Data: 2007
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  Data: EJ768019
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