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Temporal Integration Of Movement: Fhe Time-Course Of Motion Streaks Revealed By Masking, David Alais, Deborah M. Apthorp, Aana Karmann, John Cass

Faculty of Health and Behavioural Sciences - Papers (Archive)

Temporal integration in the visual system causes fast-moving objects to leave oriented 'motion streaks' in their wake, which could be used to facilitate motion direction perception. Temporal integration is thought to occur over 100 ms in early cortex, although this has never been tested for motion streaks. Here we compare the ability of fast-moving ('streaky') and slow-moving fields of dots to mask briefly flashed gratings either parallel or orthogonal to the motion trajectory. Gratings were presented at various asynchronies relative to motion onset (from to ms) to sample the time-course of the accumulating streaks. Predictions were that masking would be …