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  Memory for friends and foes: The social context of past encounters with faces modulates their subsequent neural traces in the brain.

Vrticka, P., Andersson, F., Sander, D., & Vuilleumier, P. (2009). Memory for friends and foes: The social context of past encounters with faces modulates their subsequent neural traces in the brain. Social Neuroscience, 4(5), 384-401. doi:10.1080/17470910902941793.

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Vrticka, Pascal1, Author              
Andersson, Frédéric, Author
Sander, David, Author
Vuilleumier, Patrik, Author
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1External Organizations, ou_persistent22              

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Free keywords: Familiar face recognition; Friends or foes; Social judgement; Affective reactions; fMRI
 Abstract: Every day we encounter new people, interact with them, and form person impressions based on quick and automatic inferences from minimal contextual information. Previous studies have identified an extensive network of brain areas involved in familiar face recognition, but there is little evidence to date concerning the neural bases of negative vs. positive person impressions. In the present study, participants were repeatedly exposed to 16 unfamiliar face identities within a pseudo-interactive game context to generate a perception of either “friends” or “foes”. Functional magnetic resonance imaging (fMRI) was then performed during an old/new memory task to assess any difference in brain responses to these now familiar face identities, relative to unfamiliar faces. Importantly, whereas facial expressions were always emotional (either smiling or angry) during the encoding phase, they were always neutral during the memory task. Our results reveal that several brain regions involved in familiar face recognition, including fusiform cortex, posterior cingulate gyrus, and amygdala, plus additional areas involved in motivational control such as caudate and anterior cingulate cortex, were differentially modulated as a function of a previous encounter, and generally more activated when faces were perceived as “foes” rather than “friends”. These findings underscore that a key dimension of social judgments, based on past impressions of who may be supportive or hostile, may lead to long-lasting effects on memory for faces and thus influence affective reactions to people during a subsequent encounter even in a different (neutral) context.

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Language(s): eng - English
 Dates: 2008-10-132009-09-082009-10
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1080/17470910902941793
 Degree: -

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Title: Social Neuroscience
  Abbreviation : Soc Neurosci
Source Genre: Journal
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Pages: - Volume / Issue: 4 (5) Sequence Number: - Start / End Page: 384 - 401 Identifier: ISSN: 1747-0919
CoNE: https://pure.mpg.de/cone/journals/resource/1747-0919