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Perception of gaze direction based on luminance ratio.

Authors
Type
Published Article
Journal
Perception
Publication Date
Volume
33
Issue
10
Pages
1173–1184
Identifiers
PMID: 15693663
Source
Medline
License
Unknown

Abstract

Changing the luminance of one side of the sclera induces an apparent shift of the perceived direction of gaze toward the darker side of the sclera (Ando, 2002 Perception 31 657-674). However, when both the sclera and the skin surrounding it were darkened simultaneously as if by a cast shadow, the apparent direction of gaze shifted less than when only the sclera was darkened. The results suggest that one mechanism for gaze judgment is based on a simple analysis of the local luminance ratio between the eye and the surrounding region.

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