van Boxtel, Jeroen J. A. and Koch, Christof (2012) Visual Rivalry Without Spatial Conflict. Psychological Science, 23 (4). pp. 410-418. ISSN 0956-7976 . http://resolver.caltech.edu/CaltechAUTHORS:20130816-103412404
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Visual rivalry has been extensively characterized in the literature. It is thought to require spatial conflict between overlapping visual presentations, even in studies that have found nonspatial (i.e. nonretinal) influences on rivalry. Unexpectedly, we identified visual rivalry in the complete absence of spatial conflict. Participants experienced visual rivalry when we placed a nonambiguous motion stimulus in a nonspatial (in our case, object-based) reference frame. Moreover, a stimulus that was displaced within a nonspatial reference frame did not induce rivalry despite the presence of spatial conflict. This finding shows that nonspatial, object-based processing can overrule retinotopic processing and prevent rivalry from occurring when a perceived stimulus exists unambiguously in an object-based reference frame. our results identify a potent high-level conflict-resolution stage independent of low-level spatial visual conflict. This independence of spatial overlap provides an advantage to the visual system, allowing conflict resolution when an object is nonstationary on the retina (e.g., during frequently occurring eye movements).
|Additional Information:||© The Author(s) 2012. Received July 8, 2011. Accepted August 29, 2011. Published online before print March 5, 2012. Version of Record - Apr 16, 2012. OnlineFirst Version of Record - Mar 5, 2012. We thank April Kartikasari, Jan Brascamp, David Alais, Michelle To, and Randolph Blake for comments on this manuscript, and Raymond van Ee and David Alais for discussions at early stages of this research. The first author was supported by the Rubicon grant of the Netherlands Society of Scientific Research. Both authors were supported by the National Science Foundation and by the G. Harold & Leila Y. Mathers Charitable Foundation.|
|Group:||Koch Laboratory, KLAB|
|Subject Keywords:||rivalry, object based, spatiotopic, retinotopic, ambiguous motion quartet, visual perception, spatial perception|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||KLAB Import|
|Deposited On:||04 Mar 2013 23:23|
|Last Modified:||13 Sep 2013 22:01|
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