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Research Report
Transmitting and Decoding Facial Expressions
Marie L. Smith 1 , Garrison W. Cottrell 2 , Frédéric Gosselin 3 , and Philippe G. Schyns 1
  1 Department of Psychology, University of Glasgow, Glasgow, Scotland, United Kingdom;   2 Department of Computer Science and Engineering, University of California, San Diego; and   3 Départment de Psychologie, Université de Montréal, Montreal, Quebec, Canada
 Address correspondence to Philippe G. Schyns, Department of Psychology, 58 Hillhead St., Glasgow, Scotland, G12 0DX; e-mail: philippe@psy.gla.ac.uk.
Copyright Copyright © 2005 American Psychological Society

ABSTRACT

Abstract—This article examines the human face as a transmitter of expression signals and the brain as a decoder of these expression signals. If the face has evolved to optimize transmission of such signals, the basic facial expressions should have minimal overlap in their information. If the brain has evolved to optimize categorization of expressions, it should be efficient with the information available from the transmitter for the task. In this article, we characterize the information underlying the recognition of the six basic facial expression signals and evaluate how efficiently each expression is decoded by the underlying brain structures.

(Received 2/25/04; Revision accepted 5/24/04)

DIGITAL OBJECT IDENTIFIER (DOI)
10.1111/j.0956-7976.2005.00801.x About DOI

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