A Principled Method for Determining the Functionality of ERP Components.

Schyns, P.G., Jentzsch, I., Johnson, M., Schweinberger, S.R. and Gosselin, F. (2003) A Principled Method for Determining the Functionality of ERP Components. NeuroReport(14), pp. 1665-1669.

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Abstract

A challenging issue in relating brain function to perception and cognition concerns the functional interpretation of brain responses. For example, while there is agreement that the N170 component of event-related potentials is sensitive to face processing, there is considerable debate about whether its response reflects a structural encoder for faces, a feature (e.g. eye) detector, or something else. We introduce a principled approach to determine the stimulus features driving brain responses. Our analysis on two observers resolving different face categorisation tasks (gender and expressive or not) reveal that the N170 responds to the eyes within a face irrespective of task demands. This suggests a new methodology to attribute function to different components of the neural system for perceiving complex stimuli.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Schyns, Professor Philippe
Authors: Schyns, P.G., Jentzsch, I., Johnson, M., Schweinberger, S.R., and Gosselin, F.
College/School:College of Science and Engineering > School of Psychology
College of Medical Veterinary and Life Sciences > Institute of Neuroscience and Psychology
Journal Name:NeuroReport
Publisher:Lippincott Williams & Wilkins
ISSN:0959-4965
ISSN (Online):1473-558X

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