Rationality and Psychological Explanation without Language

Abstract One important ramification of the cognitive turn in the behavioural and cognitive sciences is that high-level cognitive abilities are being identified and studied in an ever-increasing number of species and at ever-earlier stages of human development. Contemporary behavioural sciences have more or less abandoned what was for many years an unquestioned tenet in the study of cognition, namely, that language and thought went hand in hand, and hence that the study of thought could only proceed via the study of language.

Rationality and Psychological Explanation without Language Chapter