?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=The+Psychophysics+of+Synthetic+Categorical+Perception&rft.creator=Damper%2C+R+I&rft.creator=Harnad%2C+Stevan&rft.subject=Neural+Nets&rft.subject=Speech&rft.subject=Psychophysics&rft.description=Studies+of+the+categorical+perception+(CP)+of+sensory+continua+have+a+long+and+rich+history+in+psychophysics.++A+major+development+was+Macmillan+et+al.'s+application+in+1977+of+signal+detection+theory+to+analyze+several+experimental+paradigms%2C+in+particular+explicating+the+relation+between+the+psychometric+labeling+function+and+discrimination+measures.++Simultaneously%2C+Anderson+et+al.+proposed+a+neural+model+for+what+we+will+term+synthetic+CP%2C+yet+this+line+of+research+has+been+less+well+explored.++In+this+paper%2C+we+assess+neural-network+models+of+CP+with+particular+reference+to+their+ability+to+predict+the+psychophysical+behavior+of+real+observers+--+including+the+relation+between+labeling+and+discrimination.+Synthetic+categorization+of+a+variety+of+stimuli%2C+including+speech+sounds+and+artificial%2Fnovel+dimensions%2C+is+reviewed+and+discussed+in+terms+of+both+classical+theories+of+CP+and+more+recent+developments.+A+variety+of+neural+mechanisms+is+capable+of+replicating+the+essentials+of+categorical+perception%2C+indicating+that+CP+is+not+a+special+mode+of+perception+but+an+emergent+property+of+any+sufficiently-powerful+general+learning+system.+However%2C+the+most+convincing+replication+is+from+a+simulation+whose+output+is+continuous+rather+than+discrete.&rft.date=1997&rft.type=Preprint&rft.type=NonPeerReviewed&rft.format=application%2Fpostscript&rft.identifier=http%3A%2F%2Fcogprints.org%2F586%2F2%2F199712001.ps&rft.identifier=++Damper%2C+R+I+and+Harnad%2C+Stevan++(1997)+The+Psychophysics+of+Synthetic+Categorical+Perception.++%5BPreprint%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F586%2F