title: Time compression increases with eccentricity: a magnocellular property.
abstract: 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.
authors.affiliation: Laboratoire de Neurosciences Fonctionnelles et Pathologies, Université Lille Nord de France, Centre Hospitalier Universitaire de Lille, Lille, France. f-jury@chru-lille.fr
authors.forename: Felipe
authors.initials: F
authors.lastname: Aedo-Jury
authors.forename: Delphine
authors.initials: D
authors.lastname: Pins
mesh_terms: D000328:Adult; D003071:Cognition / Q000502:physiology; D005829:Geniculate Bodies / Q000502:physiology; D006801:Humans; D007088:Illusions / Q000502:physiology; D007600:Judgment / Q000502:physiology; D009039:Motion Perception / Q000502:physiology*; D009483:Neuropsychological Tests; D010296:Parietal Lobe / Q000502:physiology; D010775:Photic Stimulation; D011597:Psychomotor Performance / Q000502:physiology; D013028:Space Perception / Q000502:physiology*; D013998:Time Perception / Q000502:physiology*; D014793:Visual Cortex / Q000502:physiology; D014794:Visual Fields / Q000502:physiology; D014795:Visual Pathways / Q000502:physiology*; D055815:Young Adult