?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=The+evolution+of+signal+form%3A+Effects+of+learned+versus+inherited+recognition&rft.creator=Kamo%2C+Masashi&rft.creator=Ghirlanda%2C+Stefano&rft.creator=Enquist%2C+Magnus&rft.subject=Ethology&rft.subject=Animal+Cognition&rft.subject=Evolution&rft.subject=Neural+Nets&rft.subject=Theoretical+Biology&rft.subject=Animal+Behavior&rft.description=Organisms+can+learn+by+individual+experience+to+recognize+relevant+stimuli%0Ain+the+environment+or+they+can+genetically+inherit+this+ability+from+their%0Aparents.+Here%2C+we+ask+how+these+two+modes+of+acquisition+affect+signal+evolution%2C+focusing+in+particular+on+the+exaggeration+and+cost+of+signals.+We+argue+first%2C+that+faster+learning+by+individual+receivers+cannot+be+a+driving+force+for+the+evolution+of+exaggerated+and+costly+signals+unless+signal+senders+are+related+or+the+same+receiver+and+sender+meet+repeatedly.+We+argue+instead+that+biases+in+receivers%E2%80%99+recognition+mechanisms+can+promote+the+evolution+of+costly+exaggeration+in+signals.+We+provide+support+for+this+hypothesis+by+simulating+coevolution+between+senders+and+receivers%2C+using+artificial+neural+networks+as+a+model+of+receivers%E2%80%99+recognition+mechanisms.+We+analyse+the+joint+effects+of+receiver+biases%2C+signal+cost+and+mode+of+acquisition%2C+investigating+the+circumstances+under+which+learned+recognition+gives+rise+to+more+exaggerated+signals+than+inherited+recognition.+We+conclude+the+paper+by+discussing+the+relevance+of+our+results+to+a+number+of+biological+scenarios.&rft.date=2003&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F5280%2F1%2Fkamo_ghirlanda_enquist2002.pdf&rft.identifier=++Kamo%2C+Masashi+and+Ghirlanda%2C+Stefano+and+Enquist%2C+Magnus++(2003)+The+evolution+of+signal+form%3A+Effects+of+learned+versus+inherited+recognition.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F5280%2F