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Appears in Collections:Psychology Journal Articles
Peer Review Status: Refereed
Title: Pop-out from abrupt visual onsets
Author(s): Hancock, Peter J B
Phillips, William
Keywords: Abrupt visual onsets
Dynamic grouping
Transient signals
Visual acuity Color and form recognition test
Color Psychological aspects
Synchronization Hypothesis
Issue Date: Sep-2004
Date Deposited: 23-Apr-2007
Citation: Hancock PJB & Phillips W (2004) Pop-out from abrupt visual onsets. Vision Research, 44 (19), pp. 2285-2299.
Abstract: We report a novel psychophysical paradigm that distinguishes the information present in abrupt stimulus onset from that in the following display. The task is to pick the one odd item from a set added to a pre-existing background of similar items. When all new items are added simultaneously, observers are impaired even at distinguishing one red item amongst several green ones. An asynchrony of about 40ms between target and distracter items restores performance, with evidence that it is cortical, rather than stimulus timing difference that is significant. The results are consistent with a role for neural synchrony in dynamic grouping.
DOI Link: 10.1016/j.visres.2004.04.016
Rights: Published in Vision Research. Copyright 2004 by Elsevier Science B.V., Amsterdam. Publisher version available from

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