?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Learning+to+predict+visibility+and+invisibility+from+occlusion+events&rft.creator=Marshall%2C+J+A&rft.creator=Alley%2C+R+K&rft.creator=Hubbard%2C+R+S&rft.subject=Animal+Cognition&rft.subject=Computational+Neuroscience&rft.subject=Artificial+Intelligence&rft.subject=Machine+Vision&rft.subject=Neural+Nets&rft.description=Visual+occlusion+events+constitute+a+major+source+of+depth+information.+This+paper+presents+a+self-organizing+neural+network+that+learns+to+detect%2C+represent%2C+and+predict+the+visibility+and+invisibility+relationships+that+arise+during+occlusion+events%2C+after+a+period+of+exposure+to+motion+sequences+containing+occlusion+and+disocclusion+events.+The+network+develops+two+parallel+opponent+channels+or+%22chains%22+of+lateral+excitatory+connections+for+every+resolvable+motion+trajectory.+One+channel%2C+the+%22On%22+chain+or+%22visible%22+chain%2C+is+activated+when+a+moving+stimulus+is+visible.+The+other+channel%2C+the+%22Off%22+chain+or+%22invisible%22+chain%2C+carries+a+persistent%2C+amodal+representation+that+predicts+the+motion+of+a+formerly+visible+stimulus+that+becomes+invisible+due+to+occlusion.+The+learning+rule+uses+disinhibition+from+the+On+chain+to+trigger+learning+in+the+Off+chain.+The+On+and+Off+chain+neurons+can+learn+separate+associations+with+object+depth+ordering.+The+results+are+closely+related+to+the+recent+discovery+(Assad+%26+Maunsell%2C+1995)+of+neurons+in+macaque+monkey+posterior+parietal+cortex+that+respond+selectively+to+inferred+motion+of+invisible+stimuli.&rft.publisher=Cambridge+MA%3A+Mit+Press&rft.contributor=Touretsky%2C+D+S&rft.contributor=Moser%2C+M+C&rft.contributor=Hasselmo%2C+M+E&rft.date=1996&rft.type=Book+Chapter&rft.type=NonPeerReviewed&rft.format=application%2Fpostscript&rft.identifier=http%3A%2F%2Fcogprints.org%2F438%2F2%2Focclu9601.ps&rft.identifier=++Marshall%2C+J+A+and+Alley%2C+R+K+and+Hubbard%2C+R+S++(1996)+Learning+to+predict+visibility+and+invisibility+from+occlusion+events.++%5BBook+Chapter%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F438%2F