Behavioral and Brain Sciences

Short Communication

Opposites detract: Why rules and similarity should not be viewed as opposite ends of a continuum

Gary Marcus a1
a1 Department of Psychology, New York University, New York, NY 10012 [email protected]


Criteria that aim to dichotomize cognition into rules and similarity are destined to fail because rules and similarity are not in genuine conflict. It is possible for a given cognitive domain to exploit rules without similarity, similarity without rules, or both (rules and similarity) at the same time.