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post people can quite easily ‘read’ the average expression in a group of people.

July 18th, 2008

Filed under: CHAMELEON PROJECT — Tina @ 6:41 pm
There is a recent publication showing that people can quite easily ‘read’ the average expression in a group of people.
Current Biology, Vol 17, R751-R753, 04 September 2007
Rapid extraction of mean emotion and gender from sets of faces
Jason Haberman1,2 and David Whitney1,2
1 The Center for Mind and Brain, The University of California, Davis, California 95618, USA
2 The Department of Psychology, The University of California, Davis, California 95618, USA
Summary
We frequently encounter crowds of faces. Here we report that, when presented with a group of faces, observers quickly and automatically extract information about the mean emotion in the group. This occurs even when observers cannot report anything about the individual identities that comprise the group. The results reveal an efficient and powerful mechanism that allows the visual system to extract summary statistics from a broad range of visual stimuli, including faces.
Chris

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