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Saccadic eye movements cause compression of time as well as space. 2005

M Concetta Morrone, and John Ross, and David Burr
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.

UI MeSH Term Description Entries
D010469 Perceptual Distortion Lack of correspondence between the way a stimulus is commonly perceived and the way an individual perceives it under given conditions. Distortion, Perceptual,Distortions, Perceptual,Perceptual Distortions
D010775 Photic Stimulation Investigative technique commonly used during ELECTROENCEPHALOGRAPHY in which a series of bright light flashes or visual patterns are used to elicit brain activity. Stimulation, Photic,Visual Stimulation,Photic Stimulations,Stimulation, Visual,Stimulations, Photic,Stimulations, Visual,Visual Stimulations
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012438 Saccades An abrupt voluntary shift in ocular fixation from one point to another, as occurs in reading. Pursuit, Saccadic,Saccadic Eye Movements,Eye Movement, Saccadic,Eye Movements, Saccadic,Movement, Saccadic Eye,Movements, Saccadic Eye,Pursuits, Saccadic,Saccade,Saccadic Eye Movement,Saccadic Pursuit,Saccadic Pursuits
D013028 Space Perception The awareness of the spatial properties of objects; includes physical space. Perception, Space,Perceptions, Space,Space Perceptions
D013998 Time Perception The ability to estimate periods of time lapsed or duration of time. Temporal Perception,Temporal Processing,Time Processing,Perception, Temporal,Perception, Time,Processing, Temporal,Processing, Time

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