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Investigating face-property specific processing in the right OFA

Kadosh, KC; Walsh, V; Kadosh, RC; (2011) Investigating face-property specific processing in the right OFA. SOC COGN AFFECT NEUR , 6 (1) 58 - 65. 10.1093/scan/nsq015. Gold open access

Abstract

Within the neural face-processing network, the right occipital face area (rOFA) plays a prominent role, and it has been suggested that it receives both feed-forward and re-entrant feedback from other face sensitive areas. Its functional role is less well understood and whether the rOFA is involved in the initial analysis of a face stimulus or in the detailed integration of different face properties remains an open question. The present study investigated the functional role of the rOFA with regard to different face properties (identity, expression, and gaze) using transcranial magnetic stimulation (TMS). Experiment 1 showed that the rOFA integrates information across different face properties: performance for the combined processing of identity and expression decreased after TMS to the rOFA, while no impairment was seen in gaze processing. In Experiment 2 we examined the temporal dynamics of this effect. We pinpointed the impaired integrative computation to 170 ms post stimulus presentation. Together the results suggest that TMS to the rOFA affects the integrative processing of facial identity and expression at a mid-latency processing stage.

Type:Article
Title:Investigating face-property specific processing in the right OFA
Open access status:An open access publication
DOI:10.1093/scan/nsq015
Publisher version:http://www.ncbi.nlm.nih.gov/pmc/ articles/PMC3023081/?tool=pubmed
Keywords:face processing, occipital face area, transcranial magnetic stimulation, HUMAN EXTRASTRIATE CORTEX, HUMAN NEURAL SYSTEM, FACIAL EXPRESSION, PERCEPTION, RECOGNITION, IDENTITY, GAZE, AREA, EYE, PROSOPAGNOSIA
UCL classification:UCL > School of Life and Medical Sciences > Faculty of Brain Sciences > Psychology and Language Sciences (Division of) > Institute of Cognitive Neuroscience
UCL > School of Life and Medical Sciences > Faculty of Life Sciences

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