?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Image+and+language+in+human+reasoning%3A+a+syllogistic+illustration&rft.creator=Stenning%2C+Keith&rft.creator=Yule%2C+Peter&rft.subject=Cognitive+Psychology&rft.subject=Logic&rft.description=Existing+accounts+of+syllogistic+reasoning+oppose+rule-based+and+model-based+methods.+Stenning+%5C%26+Oberlander+(1995)+show+that+the+latter+are+isomorphic+to+well-known+graphical+methods%2C+when+these+are+correctly+interpreted.+We+here+extend+these+results+by+showing+that+equivalent+sentential+implementations+exist%2C+thus+revealing+that+all+these+theories+are+members+of+a+family+of+abstract+%7B%5Cit+individual+identification+algorithms%7D+variously+implemented+in+diagrams+or+sentences.+This+abstract+logical+analysis+suggests+a+novel+%7B%5Cit+individual+identification+task%7D+for+observing+syllogistic+reasoning+processes.+Comparison+of+the+results+of+this+task+with+the+Standard+Task+confirms+that+the+tasks+are+psychologically+closely+related%2C+throwing+light+on+sources+of+error%2C+on+subjects'+sensitivity+to+metalogical+properties%2C+and+on+term+ordering+phenomena.+Since+it+avoids+posing+the+sub-task+of+formulating+a+quantified+conclusion%2C+the+new+task+allows+comparison+of+explanations+of+problem+difficulty+in+terms+of+the+number+of+models+(e.g.+Johnson-Laird+%5C%26+Bara+1984)+with+alternatives+in+terms+of+the+difficulty+of+choosing+a+quantifier+for+the+conclusion.+Logical+concepts+of+%7B%5Cit+source%7D+and+%7B%5Cit+conditional%7D+premisses+provide+a+comprehensive+account+of+term+order+data%2C+including+figural+effects%2C+at+a+level+abstract+with+regard+to+imagistic+or+sentential+representations.+These+results+argue+that+much+richer+empirical+evidence+will+be+required+to+discriminate+phenomenologically+distinct+reasoning+processes+than+has+hitherto+been+supposed.&rft.date=1997&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpostscript&rft.identifier=http%3A%2F%2Fcogprints.org%2F818%2F2%2Fyulefinal.ps&rft.identifier=++Stenning%2C+Keith+and+Yule%2C+Peter++(1997)+Image+and+language+in+human+reasoning%3A+a+syllogistic+illustration.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F818%2F