?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=More+persistence+during+task+acquisition+by+intact+vs.+castrated+Japanese+Quail&rft.creator=Oades%2C+&rft.subject=Behavioral+Neuroscience&rft.subject=Animal+Cognition&rft.subject=Neuroendocrinology&rft.subject=Psychobiology&rft.description=Introduction%3A+%0AIn+view+of+reports+that+circulating+testosterone+levels+can+lead+to+the+persistence+of+the+selection+of+previously+used+stimulus+specifications+in+selective+attention+mechanisms+(Andrew+and+Rogers%2C+1972)%2C+adult+male+Japanese+Quail+with+and+without+circulating+gonadal+steroids+were+tested+in+on+a+match+to+sample+task+in+a+T-maze.+As+the+specifications+(sample)+change+from+trial+to+trial%2C+it+would+be+predicted+that+testosterone+would+not+facilitate+acquisition+of+this+task+if+a+type+of+stimulus+controls+response%2C+but+would+enhance+acquisition+if+the+steroid+acts+on+the+activation+of+a+set.%0A%0AMethods%3A%0ATreatment%3A+Data+from+13+castrated+and+12+intact+male+Japanese+Quail+(Coturnix+japonica)+are+reported.%0ATesting%3A+Birds+were+tested+with+and+without+prior+experience+of+simple+T-maze+discrimination.+The+main+test+consisted+of+responding+to+the+same+colour+door+(black+or+white)+in+one+of+the+two+arms+as+had+been+encountered+in+the+runway+(i.e.+match-to-sample).%0A%0AResults%3A+%0A1%2F+Both+groups+of+birds+acquired+the+simple+discrimination+rapidly+and+at+similar+rates.%0A2%2F+On+the+match-to-sample+task+intact+birds+exhibited+a+relatively+stable+performance+with+longer+response+sequences%2C+while+castrates+showed+a+more+variable+pattern+of+responding+-+increasing+then+decreasing+error+rates+across+sessions.%0A3%2F+Sequences+of+3+or+more+responses+to+position+or+to+brightness+were+more+numerous+in+birds+with+circulating+gonadal+steroids.%0A4%2F+All+birds+showed+a+preference+for+longer+sequences+of+response+to+position+than+to+brightness+.%0A5%2F+Birds+with+prior+experience+of+the+T-maze+discrimination+made+fewer+errors.%0A%0AConclusions%3A%0AThe+results+support+a+role+for+testosterone+in+the+persistent+selection+of+familiar+or+learned+sets+for+controlling+response+-+as+suggested+in+the+introduction+the+effect+is+on+the+%22rule%22+used+in+attention+not+the+nature+of+an+individual+stimulus.&rft.date=1978&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F1636%2F2%2Fbird-quail-poultry-sci-78.pdf&rft.identifier=++Oades%2C+++(1978)+More+persistence+during+task+acquisition+by+intact+vs.+castrated+Japanese+Quail.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F1636%2F