?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=A+cognitive+theory+of+graphical+and+linguistic+reasoning%3A+logic+and+implementation.+Cognitive+Science&rft.creator=Stenning%2C+Keith&rft.creator=Oberlander%2C+Jon&rft.subject=Cognitive+Psychology&rft.subject=Complexity+Theory&rft.subject=Semantics&rft.subject=Philosophy+of+Language&rft.subject=Logic&rft.subject=Philosophy+of+Mind&rft.description=We+discuss+external+and+internal+graphical+and+linguistic+representational+systems.+We+argue+that+a+cognitive+theory+of+peoples'+reasoning+performance+must+account+for+(a)+the+logical+equivalence+of+inferences+expressed+in+graphical+and+linguistic+form%3B+and+(b)+the+implementational+differences+that+affect+facility+of+inference.+Our+theory+proposes+that+graphical+representations+limit+abstraction+and+thereby+aid+processibility.+We+discuss+the+ideas+of+specificity+and+abstraction%2C+and+their+cognitive+relevance.+Empirical+support+comes+from+tasks+(i)+involving+and+(ii)+not+involving+the+manipulation+of+external+graphics.+For+(i)%2C+we+take+Euler's+Circles%2C+provide+a+novel+computational+reconstruction%2C+show+how+it+captures+abstractions%2C+and+contrast+it+with+earlier+construals%2C+and+with+Mental+Models'+representations.+We+demonstrate+equivalence+of+the+graphical+Euler+system%2C+and+the+non-graphical+Mental+Models+system.+For+(ii)%2C+we+discuss+text+comprehension%2C+and+the+mental+performance+of+syllogisms.+By+positing+an+internal+system+with+the+same+specificity+as+Euler's+Circles+we+cover+the+Mental+Models+data%2C+and+generate+new+empirical+predictions.+Finally%2C+we+consider+how+the+architecture+of+working+memory+explains+why+such+specific+representations+are+relatively+easy+to+store.&rft.date=1997&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpostscript&rft.identifier=http%3A%2F%2Fcogprints.org%2F821%2F2%2Fctg.ps&rft.identifier=++Stenning%2C+Keith+and+Oberlander%2C+Jon++(1997)+A+cognitive+theory+of+graphical+and+linguistic+reasoning%3A+logic+and+implementation.+Cognitive+Science.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F821%2F