A direct demonstration of perceptual asynchrony in vision

We have addressed the question of whether, in addition to being processed separately, colour and motion are also perceived separately. We varied continuously the colour and direction of motion of an abstract pattern of squares on a computer screen, and asked subjects to pair the colour of the patter...

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Bibliographic Details
Published in:Proceedings of the Royal Society. B, Biological sciences Biological sciences, 1997-03, Vol.264 (1380), p.393-399
Main Authors: Moutoussis, K., Zeki, S.
Format: Article
Language:English
Subjects:
Behavioral neuroscience
Cell nucleus
Cell physiology
Circles
Color
Color Perception
Humans
Kinetics
Male
Motion Perception
Oscillation
Psychophysics
Time Factors
Time perception
Vision, Ocular
Visual perception
Waveforms
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Summary:We have addressed the question of whether, in addition to being processed separately, colour and motion are also perceived separately. We varied continuously the colour and direction of motion of an abstract pattern of squares on a computer screen, and asked subjects to pair the colour of the pattern to its direction of motion. The results showed that subjects misbind the colour and the direction of motion because colour and motion are perceived separately and at different times, colour being perceived first. Hence the brain binds visual attributes that are perceived together, rather than ones that occur together in real time.
ISSN:0962-8452
1471-2954
DOI:10.1098/rspb.1997.0056