Receptive fields for flexible face categorizations.

Smith, M.L., Gosselin, F. and Schyns, P.G. (2004) Receptive fields for flexible face categorizations. Psychological Science, 15(11), pp. 753-761.

Full text not currently available from Enlighten.


Examining the receptive fields of brain signals can elucidate how information impinging on the former modulates the latter. We applied this time-honored approach in early vision to the higher-level brain processes underlying face categorizations. Electroencephalograms in response to face-information samples were recorded while observers resolved two different categorizations (gender, expressive or not). Using a method with low bias and low variance, we compared, in a common space of information states, the information determining behavior (accuracy and reaction time) with the information that modulates emergent brain signals associated with early face encoding and later category decision. Our results provide a time line for face processing in which selective attention to diagnostic information for categorizing stimuli (the eyes and their second-order relationships in gender categorization; the mouth in expressive-or-not categorization) correlates with late electrophysiological (P300) activity, whereas early face-sensitive occipito-temporal (N170) activity is mainly driven by the contralateral eye, irrespective of the categorization task.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Schyns, Professor Philippe
Authors: Smith, M.L., Gosselin, F., and Schyns, P.G.
College/School:College of Science and Engineering > School of Psychology
College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience
Journal Name:Psychological Science

University Staff: Request a correction | Enlighten Editors: Update this record