?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=The+evolution+of+brain+lateralization%3A+A+game+theoretical+analysis+of+population+structure%0A&rft.creator=Ghirlanda%2C+Stefano&rft.creator=Vallortigara%2C+Giorgio&rft.subject=Ethology&rft.subject=Animal+Cognition&rft.subject=Evolution&rft.subject=Behavioral+Biology&rft.subject=Comparative+Psychology&rft.subject=Ecology&rft.subject=Behavioral+Neuroscience&rft.subject=Theoretical+Biology&rft.subject=Animal+Behavior&rft.description=In+recent+years%2C+it+has+become+apparent+that+behavioural+and+brain+lateralization+is+the+rule+rather+than+the+exception+among+vertebrates.+The+study+of+lateralization+has+been+so+far+the+province+of+neurology+and+neuropsychology.+We+show+how+such+research+can+be+integrated+with+evolutionary+biology+to+more+fully+understand+lateralization.+In+particular%2C+we+address%0Athe+fact+that%2C+within+a+species%2C+left-+and+right-type+individuals+are+often+in+a+definite+proportion+different+from+1%2F2+(e.g.%2C+hand+use+in+humans).+We+argue+that+traditional+explanations+of+brain+lateralization+(that+it+may+avoid+costly+duplication+of+neural+circuitry+and+reduce+interference+between+functions)+cannot+account+for+this+fact%2C+because+increased+individual+efficiency+is+unre-%0Alated+to+the+frequency+of+left-+and+right-type+individuals+in+a+population.+A+further+puzzle+is+that%2C+if+a+majority+of+individuals+are+of+the+same+type%2C+individual+behaviour+becomes+more+predictable+to+other+organisms.+Here+we%0Ashow+that+alignment+of+the+direction+of+behavioural+asymmetries+in+a+population+can+arise+as+an+evolutionarily+stable+strategy+(ESS)%2C+when+individually+asymmetrical+organisms+must+coordinate+their+behaviour+with+that+of+other%0Aasymmetrical+organisms.+Thus%2C+brain+and+behavioural+lateralization%2C+as+we+know+it+in+humans+and+other+vertebrates%2C+may+have+evolved+under+basically%0A%22social%22+selection+pressures.%0A&rft.date=2004&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F5299%2F1%2Fghirlanda_vallortigare06.pdf&rft.identifier=++Ghirlanda%2C+Stefano+and+Vallortigara%2C+Giorgio++(2004)+The+evolution+of+brain+lateralization%3A+A+game+theoretical+analysis+of+population+structure.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F5299%2F