Does cognitive perception have access to brief temporal events?

doi:10.1068/i0418

Does cognitive perception have access to brief temporal events?

Robert F Hess

McGill Vision Research, Department of Ophthalmology, McGill University, Montreal, Quebec, Canada

Robert.hess@mcgill.cc

Goro Maehara

Japan Society for the Promotion of Science, Tokyo, Japan [and Dept. Psychology, Sophia University, Tokyo, Japan]

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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 67milliseconds (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.

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Cite as: Hess R F, Maehara G, 2011, "Does cognitive perception have access to brief temporal events?" i-Perception 2(2) 142–149
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DOI: 10.1068/i0418

ISSN: 2041-6695 (electronic only)

Copyright: Copyright is retained by the author(s) of this article. This open-access article is distributed under a Creative Commons Licence, which permits noncommercial use, distribution, and reproduction, provided the original author(s) and source are credited and no alterations are made.