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dc.contributor.authorGrossberg, Stephenen_US
dc.contributor.authorMingolla, Ennioen_US
dc.contributor.authorPack, Christopheren_US
dc.date.accessioned2011-11-14T18:25:18Z
dc.date.available2011-11-14T18:25:18Z
dc.date.issued1997-09en_US
dc.identifier.urihttps://hdl.handle.net/2144/2127
dc.description.abstractCells in the dorsal medial superior temporal cortex (MSTd) process optic flow generated by self-motion during visually-guided navigation. A neural model shows how interactions between well-known neural mechanisms (log polar cortical magnification, Gaussian motion-sensitive receptive fields, spatial pooling of motion-sensitive signals, and subtractive extraretinal eye movement signals) lead to emergent properties that quantitatively simulate neurophysiological data about MSTd cell properties and psychophysical data about human navigation. Model cells match MSTd neuron responses to optic flow stimuli placed in different parts of the visual field, including position invariance, tuning curves, preferred spiral directions, direction reversals, average response curves, and preferred locations for stimulus motion centers. The model shows how the preferred motion direction of the most active MSTd cells can explain human judgments of self-motion direction (heading), without using complex heading templates. The model explains when extraretinal eye movement signals are needed for accurate heading perception, and when retinal input is sufficient, and how heading judgments depend on scene layouts and rotation rates.en_US
dc.description.sponsorshipDefense Research Projects Agency (N00014-92-J-4015); Office of Naval Research (N00014-92-J-1309, N00014-95-1-0409, N00014-95-1-0657, N00014-91-J-4100, N0014-94-I-0597); Air Force Office of Scientific Research (F49620-92-J-0334);en_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-1997-015en_US
dc.rightsCopyright 1997 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.subjectOptic flowen_US
dc.subjectHeadingen_US
dc.subjectPursuiten_US
dc.subjectCortical magnificationen_US
dc.titleA Neural Model of Motion Processing and Visual Navigation by Cortical Area MSTen_US
dc.typeTechnical Reporten_US
dc.rights.holderBoston University Trusteesen_US


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