Time compression increases with eccentricity: a magnocellular property.
Accurate time perception is crucial in peripheral vision especially for the spatial perception during actions. To investigate the dynamics of time perception in peripheral vision, parvocellular-biased and magnocellular-biased flashes were presented at different eccentricities (0-48 degrees ) in an interflash interval discrimination task. Results showed an increase in time compression with eccentricity for both stimuli (magnocellular-biased and parvocellular-biased flashes). Nevertheless, when stimulus visibility was 'equalized' across the visual field, the increase in time compression was only found for magnocellular-biased stimuli. Thus, we suggest that the magnocellular pathway accounts for time underestimation. Moreover, its increase with eccentricity could be an inherent property of the magnocellular system more than a result of a decrease in stimulus visibility.
Aedo-Jury
Felipe
F
Laboratoire de Neurosciences Fonctionnelles et Pathologies, Université Lille Nord de France, Centre Hospitalier Universitaire de Lille, Lille, France. f-jury@chru-lille.fr
Pins
Delphine
D
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