title: Does cognitive perception have access to brief temporal events?
abstract: To determine whether conscious perception has access to brief temporal event, we asked subjects in an odd-man out paradigm to determine which of the four Gaussian blobs was flickering asynchronously in time. We measure synchrony thresholds as a function of the base temporal frequency for spatially scaled stimuli in foveal and peripheral vision. The results are consistent with a time delay of around 67 milliseconds (ms) for foveal vision and 91 ms for peripheral vision. We conclude that conscious perception has access to only relatively long (∼67 ms) time events.
authors.affiliation: McGill Vision Research, Department of Ophthalmology, McGill University, Montreal, Quebec, Canada; e-mail:  Robert.hess@mcgill.cc.
authors.forename: Robert F
authors.initials: RF
authors.lastname: Hess
authors.forename: Goro
authors.initials: G
authors.lastname: Maehara
keywords: cognition; synchrony; temporal; temporal frequency