Naive Causality: a Mental Model Theory of Causal Meaning and Reasoning
Cognitive Science 25 (2001) 565–610 http://www.elsevier.com/locate/cogsci Naive causality: a mental model theory of causal meaning and reasoning Eugenia Goldvarga, P.N. Johnson-Lairdb,* aInfant Cognition Laboratory, Department of Brain and Cognitive Science, MIT, 77 Massachusetts Avenue, Cambridge, MA 02139, USA bDepartment of Psychology, Princeton University, Green Hall, Princeton, NJ 08544, USA All reasonings concerning matter of fact seem to be founded on the relation of Cause and Effect. David Hume, 1748/1988 Abstract This paper outlines a theory and computer implementation of causal meanings and reasoning. The meanings depend on possibilities, and there are four weak causal relations: A causes B, A prevents B, A allows B, and A allows not-B, and two stronger relations of cause and prevention. Thus, A causes B corresponds to three possibilities: A and B, not-A and B, and not-A and not-B, with the temporal constraint that B does not precede A; and the stronger relation conveys only the first and last of these possibilities. Individuals represent these relations in mental models of what is true in the various possibilities. The theory predicts a number of phenomena, and, contrary to many accounts, it implies that the meaning of causation is not probabilistic, differs from the meaning of enabling conditions, and does not depend on causal powers or mechanisms. The theory also implies that causal deductions do not depend on schemas or rules. 1. Introduction You think about causal relations, because they allow you to infer what will happen. Drinking too much wine will cause a hangover.
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