?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Explicit+learning+in+ACT-R&rft.creator=Taatgen%2C+Niels+A.&rft.subject=Cognitive+Psychology&rft.subject=Artificial+Intelligence&rft.subject=Developmental+Psychology&rft.description=A+popular+distinction+in+the+learning+literature+is+the+distinction+between+implicit+and+explicit+learning.+Although+many+studies+elaborate+on+the+nature+of+implicit+learning%2C+little+attention+is+left+for+explicit+learning.+The+unintentional+aspect+of+implicit+learning+corresponds+well+to+the+mechanistic+view+of+learning+employed+in+architectures+of+cognition.+But+how+to+account+for+deliberate%2C+intentional%2C+explicit+learning%3F+This+chapter+argues+that+explicit+learning+can+be+explained+by+strategies+that+exploit+implicit+learning+mechanisms.+This+idea+is+explored+and+modelled+using+the+ACT-R+theory+(Anderson%2C+1993).+An+explicit+strategy+for+learning+facts+in+ACT-R%C2%92s+declarative+memory+is+rehearsal%2C+a+strategy+that+uses+ACT-R%C2%92s+activation+learning+mechanisms+to+gain+deliberate+control+over+what+is+learned.+In+the+same+sense%2C+strategies+for+explicit+procedural+learning+are+proposed.+Procedural+learning+in+ACT-R+involves+generalisation+of+examples.+Explicit+learning+rules+can+create+and+manipulate+these+examples.+An+example+of+these+explicit+rules+will+be+discussed.+These+rules+are+general+enough+to+be+able+to+model+the+learning+of+three+different+tasks.+Furthermore%2C+the+last+of+these+models+can+explain+the+difference+between+adults+and+children+in+the+discrimination-shift+task.&rft.publisher=Pabst%2C+Lengerich&rft.contributor=Schmid%2C+U.&rft.contributor=Krems%2C+J.F.&rft.contributor=Wysotzki%2C+F.&rft.date=1999&rft.type=Book+Chapter&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F798%2F3%2FprepubsTCW-97-2.pdf&rft.identifier=++Taatgen%2C+Niels+A.++(1999)+Explicit+learning+in+ACT-R.++%5BBook+Chapter%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F798%2F