%A Stevan Harnad %J Language, mind and brain %T Neoconstructivism: A Unifying Constraint for the Cognitive Sciences %X Behavioral scientists studied behavior; cognitive scientists study what generates behavior. Cognitive science is hence theoretical behaviorism (or behaviorism is experimental cognitivism). Behavior is data for a cognitive theorist. What counts as a theory of behavior? In this paper, a methodological constraint on theory construction -- "neoconstructivism" -- will be proposed (by analogy with constructivism in mathematics): Cognitive theory must be computable; given an encoding of the input to a behaving system, a theory must be able to compute (an encoding of) its outputs. It is a mistake to conclude, however, that this constraint requires cognitive theory to be computational, or that it follows from this that cognition is computation. %K cognition, computation, computability, constructivism, theory %P 1-11 %E T. Simon %E R. Scholes %D 1982 %I Hillsdale NJ: Erlbaum %L cogprints662