?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Tilt+Aftereffects+in+a+Self-Organizing+Model+of+the+Primary+Visual+Cortex&rft.creator=Bednar%2C+James+A.&rft.creator=Miikkulainen%2C+Risto&rft.subject=Computational+Neuroscience&rft.subject=Neural+Nets&rft.subject=Neural+Modelling&rft.subject=Psychophysics&rft.description=RF-LISSOM%2C+a+self-organizing+model+of+laterally+connected+orientation+maps+in+the+primary+visual+cortex%2C+was+used+to+study+the+psychological+phenomenon+known+as+the+tilt+aftereffect.+The+same+self-organizing+processes+that+are+responsible+for+the+long-term+development+of+the+map+are+shown+to+result+in+tilt+aftereffects+over+short+time+scales+in+the+adult.+The+model+permits+simultaneous+observation+of+large+numbers+of+neurons+and+connections%2C+making+it+possible+to+relate+high-level+phenomena+to+low-level+events%2C+which+is+difficult+to+do+experimentally.+The+results+give+detailed+computational+support+for+the+long-standing+conjecture+that+the+direct+tilt+aftereffect+arises+from+adaptive+lateral+interactions+between+feature+detectors.+They+also+make+a+new+prediction+that+the+indirect+effect+results+from+the+normalization+of+synaptic+efficacies+during+this+process.+The+model+thus+provides+a+unified+computational+explanation+of+self-organization+and+both+the+direct+and+indirect+tilt+aftereffect+in+the+primary+visual+cortex.&rft.publisher=MIT+Press&rft.date=2000-07&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpostscript&rft.identifier=http%3A%2F%2Fcogprints.org%2F1915%2F1%2Fbednar.nc2000_color.ps.gz&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F1915%2F4%2Fbednar.nc2000_color.pdf&rft.identifier=++Bednar%2C+James+A.+and+Miikkulainen%2C+Risto++(2000)+Tilt+Aftereffects+in+a+Self-Organizing+Model+of+the+Primary+Visual+Cortex.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F1915%2F