Investigating representations of facial identity in human ventral visual cortex with transcranial magnetic stimulation

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Gilaie-Dotan, Sharon Silvanto, Juha Schwarzkopf, Dietrich S. Rees, Geraint 2017-05-11T08:37:52Z 2017-05-11T08:37:52Z 2010
dc.identifier.citation Gilaie-Dotan , S , Silvanto , J , Schwarzkopf , D S & Rees , G 2010 , ' Investigating representations of facial identity in human ventral visual cortex with transcranial magnetic stimulation ' FRONTIERS IN HUMAN NEUROSCIENCE , vol 4 , 50 , pp. 1-11 . DOI: 10.3389/fnhum.2010.00050 en
dc.identifier.issn 1662-5161
dc.identifier.other PURE UUID: 926ecac0-6249-4711-ae4a-3f5b36678f2f
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE LINK:
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dc.description.abstract The occipital face area (OFA) is face-selective. This enhanced activation to faces could reflect either generic face and shape-related processing or high-level conceptual processing of identity. Here we examined these two possibilities using a state-dependent transcranial magnetic stimulation (TMS) paradigm. The lateral occipital (LO) cortex which is activated non-selectively by various types of objects served as a control site. We localized OFA and LO on a per-participant basis using functional MRI. We then examined whether TMS applied to either of these regions affected the ability of participants to decide whether two successively presented and physically different face images were of the same famous person or different famous people. TMS was applied during the delay between first and second face presentations to investigate whether neuronal populations in these regions played a causal role in mediating the behavioral effects of identity repetition. Behaviorally we found a robust identity repetition effect, with shorter reaction times (RTs) when identity was repeated, regardless of the fact that the pictures were physically different. Surprisingly, TMS applied over LO (but not OFA) modulated overall RTs, compared to the No-TMS condition. But critically, we found no effects of TMS to either area that were modulated by identity repetition. Thus, we found no evidence to suggest that OFA or LO contain neuronal representations selective for the identity of famous faces which play a causal role in identity processing. Instead, these brain regions may be involved in the processing of more generic features of their preferred stimulus categories. en
dc.format.extent 1-11
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries FRONTIERS IN HUMAN NEUROSCIENCE en
dc.relation.ispartofseries Volume 4 en
dc.rights openAccess en
dc.subject.other 114 Physical sciences en
dc.subject.other 3112 Neurosciences en
dc.subject.other 113 Computer and information sciences en
dc.subject.other 217 Medical engineering en
dc.subject.other 3124 Neurology and psychiatry en
dc.subject.other 515 Psychology en
dc.title Investigating representations of facial identity in human ventral visual cortex with transcranial magnetic stimulation en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Neuroscience and Biomedical Engineering en
dc.subject.keyword faces
dc.subject.keyword familiar
dc.subject.keyword famous
dc.subject.keyword identity
dc.subject.keyword LO
dc.subject.keyword OFA
dc.subject.keyword state-dependent TMS
dc.subject.keyword 114 Physical sciences
dc.subject.keyword 3112 Neurosciences
dc.subject.keyword 113 Computer and information sciences
dc.subject.keyword 217 Medical engineering
dc.subject.keyword 3124 Neurology and psychiatry
dc.subject.keyword 515 Psychology
dc.identifier.urn URN:NBN:fi:aalto-201705114078
dc.identifier.doi 10.3389/fnhum.2010.00050
dc.type.version publishedVersion

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