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Nat Neurosci. 2005 Jul;8(7):950-4.

Saccadic eye movements cause compression of time as well as space.

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Facoltà di Psicologia, Università Vita-Salute San Raffaele, Via Olgettina 58, Milano 20132, Italy.


There is now considerable evidence that space is compressed when stimuli are flashed shortly before or after the onset of a saccadic eye movement. Here we report that short intervals of time between two successive perisaccadic visual (but not auditory) stimuli are also underestimated, indicating a compression of perceived time. We were even more surprised that in a critical interval before saccades, perceived temporal order is consistently reversed. The very similar time courses of spatial and temporal compression suggest that both are mediated by a common neural mechanism, probably related to the predictive shifts that occur in receptive fields of many visual areas at the time of saccades.

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