?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Modeling+dynamic+receptive+field+changes+produced+by+intracortical+microstimulation&rft.creator=Kalarickal%2C+G.J.&rft.creator=Marshall%2C+J.A.&rft.subject=Theoretical+Biology&rft.subject=Artificial+Intelligence&rft.subject=Machine+Learning&rft.subject=Neural+Nets&rft.description=Intracortical+microstimulation+(ICMS)+of+a+localized+site+in+the+somatosensory+cortex+of+rats+and+monkeys+for+2-6+hours+produces+a+large+increase+in+the+cortical+representation+of+the+skin+region+represented+by+the+ICMS-site+neurons+before+ICMS%2C+with+very+little+effect+on+the+ICMS-site+neuron's+RF+location%2C+RF+size%2C+and+responsiveness+(Recanzone+et+al.%2C+1992).+The+%22EXIN%22+(afferent+excitatory+and+lateral+inhibitory)+learning+rules+(Marshall%2C+1995)+are+used+to+model+RF+changes+during+ICMS.+The+EXIN+model+produces+reorganization+of+RF+topography+similar+to+that+observed+experimentally.+The+possible+role+of+inhibitory+learning+in+producing+the+effects+of+ICMS+is+studied+by+simulating+the+EXIN+model+with+only+lateral+inhibitory+learning.+The+model+also+produces+an+increase+in+the+cortical+representation+of+the+skin+region+represented+by+the+ICMS-site+RF.+ICMS+is+compared+to+artificial+scotoma+conditioning+(Pettet+%26+Gilbert%2C+1992)+and+retinal+lesions+(Darian-Smith+%26+Gilbert%2C+1995)%2C+and+it+is+suggested+that+lateral+inhibitory+learning+may+be+a+general+principle+of+cortical+plasticity.&rft.date=1997-01&rft.type=Preprint&rft.type=PeerReviewed&rft.format=application%2Fpostscript&rft.identifier=http%3A%2F%2Fcogprints.org%2F437%2F2%2Ficms9701.ps&rft.identifier=++Kalarickal%2C+G.J.+and+Marshall%2C+J.A.++(1997)+Modeling+dynamic+receptive+field+changes+produced+by+intracortical+microstimulation.++%5BPreprint%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F437%2F