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dc.contributor.authorKillgore, William Dale
dc.contributor.authorYurgelun-Todd, Deborah
dc.date.accessioned2011-04-08T16:42:47Z
dc.date.issued2007
dc.identifier.citationKillgore, William D. S., and Deborah A. Yurgelun-Todd. 2007. The right-hemisphere and valence hypotheses: could they both be right (and sometimes left)?. Social cognitive and affective neuroscience 2, no. 3: 240-250.en_US
dc.identifier.issn1749-5016en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:4817654
dc.description.abstractThe two halves of the brain are believed to play different roles in emotional processing, but the specific contribution of each hemisphere continues to be debated. The right-hemisphere hypothesis suggests that the right cerebrum is dominant for processing all emotions regardless of affective valence, whereas the valence specific hypothesis posits that the left hemisphere is specialized for processing positive affect while the right hemisphere is specialized for negative affect. Here, healthy participants viewed two split visual-field facial affect perception tasks during functional magnetic resonance imaging, one presenting chimeric happy faces (i.e. half happy/half neutral) and the other presenting identical sad chimera (i.e. half sad/half neutral), each masked immediately by a neutral face. Results suggest that the posterior right hemisphere is generically activated during non-conscious emotional face perception regardless of affective valence, although greater activation is produced by negative facial cues. The posterior left hemisphere was generally less activated by emotional faces, but also appeared to recruit bilateral anterior brain regions in a valence-specific manner. Findings suggest simultaneous operation of aspects of both hypotheses, suggesting that these two rival theories may not actually be in opposition, but may instead reflect different facets of a complex distributed emotion processing system.en_US
dc.language.isoen_USen_US
dc.publisherOxford University Pressen_US
dc.relation.isversionofdoi://10.1093/scan/nsm020en_US
dc.relation.hasversionhttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC2569811/pdf/en_US
dash.licenseLAA
dc.subjectneuroimagingen_US
dc.subjectfacesen_US
dc.subjectemotionen_US
dc.subjectaffecten_US
dc.subjectfMRIen_US
dc.titleThe Right-Hemisphere and Valence Hypotheses: Could They Both be Right (and Sometimes Left)?en_US
dc.typeJournal Articleen_US
dc.description.versionVersion of Recorden_US
dc.relation.journalSocial Cognitive and Affective Neuroscienceen_US
dash.depositing.authorKillgore, William Dale
dc.date.available2011-04-08T16:42:47Z
dash.affiliation.otherHMS^Psychiatry-McLean Hospitalen_US
dash.affiliation.otherHMS^Psychiatry-McLean Hospitalen_US
dc.identifier.doi10.1093/scan/nsm020*
dash.contributor.affiliatedKillgore, William D. S.
dash.contributor.affiliatedYurgelun-Todd, Deborah


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