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dc.contributor.authorFrancis, Gregoryen_US
dc.contributor.authorGrossberg, Stephenen_US
dc.date.accessioned2011-11-14T18:46:34Z
dc.date.available2011-11-14T18:46:34Z
dc.date.issued1994-03en_US
dc.identifier.urihttp://hdl.handle.net/2144/2149
dc.description.abstractHow does the visual system generate percepts of moving forms? How does this happen when the forms are emergent percepts, such as illusory contours or segregated textures, and the motion percept is apparent motion between the emergent forms? We develop a neural model of form-motion interactions to explain and simulate parametric properties of psychophysical motion data and to make predictions about how the parallel cortical processing streams Vl→MT and Vl→V2→MT control form-rotation interactions. The model explains how an illusory contour can move in apparent motion to another illusory contour or to a luminance derived contour; how illusory contour persistence relates to the upper ISI threshold for apparent motion; and how upper and lower ISI thresholds for seeing apparent motion between two flashes decrease with stimulus duration and narrow with spatial separation (Korte's laws). The model accounts for these data. by suggesting how the persistence of a. boundary segmentation in the Vl→V2 processing stream influences the quality of apparent motion in the Vl→MT stream through V2→MT' interactions. These data may all be explained by an analysis of how orientationally tuned form perception mechanisms and directionally tuned motion perception mechanisms interact.en_US
dc.description.sponsorshipAir Force Office of Scientific Research (90-0175, 90-0083); Office of Naval Research (N00014-91-J-4100); National Science Foundation Graduate Fellowshipen_US
dc.language.isoen_USen_US
dc.publisherBoston University Center for Adaptive Systems and Department of Cognitive and Neural Systemsen_US
dc.relation.ispartofseriesBU CAS/CNS Technical Reports;CAS/CNS-TR-1994-011en_US
dc.rightsCopyright 1994 Boston University. Permission to copy without fee all or part of this material is granted provided that: 1. The copies are not made or distributed for direct commercial advantage; 2. the report title, author, document number, and release date appear, and notice is given that copying is by permission of BOSTON UNIVERSITY TRUSTEES. To copy otherwise, or to republish, requires a fee and / or special permission.en_US
dc.subjectForm perceptionen_US
dc.subjectMotion perceptionen_US
dc.subjectNeural networksen_US
dc.subjectVisual cortexen_US
dc.subjectVisual persistenceen_US
dc.subjectApparent motionen_US
dc.subjectKorte's lawsen_US
dc.titleCortical Dynamics of Form and Motion Integration: Persistence, Apparent Motion, and Illusory Contoursen_US
dc.typeTechnical Reporten_US
dc.rights.holderBoston University Trusteesen_US


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