?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Geda%CC%88chtnispsychologische+Untersuchungen+eines+Rechenku%CC%88nstlers&rft.creator=Bredenkamp%2C+J%C3%BCrgen&rft.creator=Klein%2C+Klaus-Martin&rft.creator=Hayn%2C+Silvana+von&rft.creator=Vaterrodt%2C+Bianca&rft.subject=Cognitive+Psychology&rft.description=Investigations+of+a+mental+calculation+expert's+memory.+Summary.+In+this+article+investigations+of+a+mental+calculation+expert+are+described%2C+which+are+concerned+with+various+components+of+his+working+memory+as+well+as+with+long-term+remembering+of+numbers.+The+most+important+results+are%3A+%0D%0A1)+Not+the+frequency+of+memorizing%2C+but+the+quality+of+processing+determines+long-term+remembering.+%0D%0A2)+The+expert+either+does+not+instruct+himself+to+forget+or+does+not+utilize+cues+to+forget.+In+spite+of+that+there+was+no+evidence+for+proactive+inhibition.+%0D%0A3)+Retroactive+inhibition+was+shown+when+active+processing+was+impossible.+%0D%0A4)+In+Sternberg's+paradigm+the+expert+processes+more+digits+than+consonants+per+sec.+Only+with+respect+to+digits+the+expert+processes+faster+than+other+subjects.+%0D%0A5)+The+memory+span+for+digits+is+large%2C+for+letters+average.+The+digit+span+is+not+determined+by+a+limited+number+of+chunks+but+by+the+number+of+digits+which+can+be+processed+within+a+limited+space+of+time.+This+time+seems+to+be+larger+than+the+one+of+other+subjects.+%0D%0A6)+The+symbolic+distance+effect+for+digits+and+letters+was+shown+to+be+valid+for+all+subjects.+Only+the+expert's+comparison+of+numbers+is+less+time-consuming+than+the+comparison+of+other+subjects.+%0D%0AThe+results+are+discussed+with+respect+to+his+computational+abilities+which+he+has+demonstrated+independent+of+these+investigations+(Bredenkamp%2C+1989).&rft.publisher=Hans+Huber%2C+Bern&rft.date=1988&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F6644%2F1%2FBredenkamp_etal_1988.pdf&rft.identifier=++Bredenkamp%2C+J%C3%BCrgen+and+Klein%2C+Klaus-Martin+and+Hayn%2C+Silvana+von+and+Vaterrodt%2C+Bianca++(1988)+Geda%CC%88chtnispsychologische+Untersuchungen+eines+Rechenku%CC%88nstlers.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F6644%2F