?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Categories+and+Word+Meanings++in+Adaptive+Organisms&rft.creator=Parisi%2C+D&rft.creator=Denaro%2C+D&rft.creator=Cangelosi%2C+A&rft.subject=Cognitive+Psychology&rft.subject=Neural+Nets&rft.description=Categories+and+word+meanings+tend+to+be+interpreted+as+single+entities+that+are+activated+in+the+mind+when+an+individual+categorizes+the+world+or+uses+language.+We+argue+that+this+view+is+mistaken+by+using+models+based+on+neural+networks+and+adaptive+behavior+simulations.+Connectionist+simulations+of+populations+of+organisms+that+live+and+reproduce+in+an+environment+show+that+categories+and+word+meanings+are+open+and+changing+collections+of+activation+patterns+in+the+network's+internal+units+rather+than+single+activation+patterns.&rft.date=1998&rft.type=Preprint&rft.type=NonPeerReviewed&rft.format=application%2Fpostscript&rft.identifier=http%3A%2F%2Fcogprints.org%2F618%2F2%2Fca-ica98.ps&rft.identifier=++Parisi%2C+D+and+Denaro%2C+D+and+Cangelosi%2C+A++(1998)+Categories+and+Word+Meanings+in+Adaptive+Organisms.++%5BPreprint%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F618%2F