DC Field | Value | Language |
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dc.contributor.author | Kim, Jeounghoon | - |
dc.contributor.author | Buckthought, A. | - |
dc.contributor.author | Wilson, H. R. | - |
dc.date.accessioned | 2013-03-18T19:59:16Z | - |
dc.date.available | 2013-03-18T19:59:16Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2006-05-01 | - |
dc.identifier.citation | Vision Sciences Society Annual Meeting, v., no., pp.214 - 214 | - |
dc.identifier.uri | http://hdl.handle.net/10203/151941 | - |
dc.description.abstract | Neural hysteresis plays a fundamental role in stereopsis and reveals the existence of positive feedback at the cortical level [Wilson, H. R., & Cowan, J. D. (1973). A mathematical theory of the functional dynamics of cortical and thalamic nervous tissue. Kybernetik 13(2), 55-80]. We measured hysteresis as a function of orientation disparity in tilted gratings in which a transition is perceived between stereopsis and binocular rivalry. The patterns consisted of sinusoidal gratings with orientation disparities (0 degrees, 1 degrees, 2 degrees,..., 40 degrees) resulting in various degrees of tilt. A movie of these 41 pattern pairs was shown at a rate of 0.5, 1 or 2 pattern pairs per second, in forward or reverse order. Two transition points were measured: the point at which the single tilted grating appeared to split into two rivalrous gratings (T1), and the point at which two rivalrous gratings appeared to merge into a single tilted grating (T2). The transitions occurred at different orientation disparities (T1=25.4 degrees, T2=17.0 degrees) which was consistent with hysteresis and far exceeded the difference which could be attributed to reaction time. The results are consistent with a cortical model which includes positive feedback and recurrent inhibition between neural units representing different eyes and orientations. | - |
dc.language | ENG | - |
dc.publisher | Vision Sciences Society | - |
dc.title | Hysteresis effects in stereopsis and binocular rivalry | - |
dc.type | Conference | - |
dc.type.rims | CONF | - |
dc.citation.beginningpage | 214 | - |
dc.citation.endingpage | 214 | - |
dc.citation.publicationname | Vision Sciences Society Annual Meeting | - |
dc.identifier.conferencecountry | Canada | - |
dc.identifier.conferencecountry | Canada | - |
dc.contributor.localauthor | Kim, Jeounghoon | - |
dc.contributor.nonIdAuthor | Buckthought, A. | - |
dc.contributor.nonIdAuthor | Wilson, H. R. | - |
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