Logic and Phenomenology of Incompleteness in Illusory Figures: New Cases and Hypotheses


Show simple item record Pinna, Baingio en_US Grossberg, Stephen en_US 2011-11-14T19:08:29Z 2011-11-14T19:08:29Z 2005-03 en_US
dc.description.abstract Cognitive and gestalt visions theories consider incompleteness to be a necessmy and sufficient factor for inducing illusory figures. The role of incompleteness is studied herein by defining the inner logic subtended by use of the term "incompleteness", presenting new cases to clarify the phenomenology of incompleteness as a necessary and sufficient condition, and suggesting an alternative hypothesis to explain illusory figures after analyzing problems with the incompleteness hypothesis. It is demonstrated that incompleteness is not a sufficient condition, illusory figures do not necessarily complete incompletenesses, the shape of incompleteness does not predict the shape of illusory figures, and incompleteness is not a necessary condition. Finally, it is noted that the incompleteness hypothesis can be replaced by concepts concerning interacting boundary grouping and surface filling-in processes during figure-ground segregation. The suggested hypothesis is consistent with neurophysiological experiments and is described in terms of the FACADE neural model of boundary and surface formation during figure-ground segregation. en_US
dc.description.sponsorship National Science Foundation (SBE-0354378); Office of Naval Research (N00014-95-1-0657); Fondazione Banco di Sardegna; Alexander von Humboldt Foundation; ERSU; Banca di Sassari; Fonda d'Ateneo en_US
dc.language.iso en_US en_US
dc.publisher Boston University Center for Adaptive Systems and Department of Cognitive and Neural Systems en_US
dc.relation.ispartofseries BUCAS/CNS Technical Reports; BUCAS/CNS-TR-2005-008 en_US
dc.rights Copyright 2005 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.subject Illusory contours en_US
dc.subject Brightness illusions en_US
dc.subject Incompleteness hypothesis en_US
dc.subject Figure-ground segregation en_US
dc.subject Perceptual grouping en_US
dc.subject Surface filling-in en_US
dc.title Logic and Phenomenology of Incompleteness in Illusory Figures: New Cases and Hypotheses en_US
dc.type Technical Report en_US
dc.rights.holder Boston University Trustees en_US

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