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Percept Psychophys. 2005 Feb;67(2):345-53.

A spatial explanation for synchrony biases in perceptual grouping: consequences for the temporal-binding hypothesis.

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Max Planck Institute for Biological Cybernetics, Tübingen, Germany.


If two images are shown in rapid sequential order, they are perceived as a single, fused image. Despite this, recent studies have revealed that fundamental perceptual processes are influenced by extremely brief temporal offsets in stimulus presentation. Some researchers have suggested that this is due to the action of a cortical temporal-binding mechanism, which would serve to keep multiple mental representations of one object distinct from those of other objects. There is now gathering evidence that these studies should be reassessed. This article describes evidence for sensitivity to fixational eye and head movements, which provides a purely spatial explanation for the earlier results. Taken in conjunction with other studies, the work serves to undermine the current body of behavioral evidence for a temporal-binding mechanism.

[Indexed for MEDLINE]

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