Toward a Behavioral Interpretation of English Grammar.

Behavior analysis is virtually alone among disciplines in assuming that the orderly arrangement of words in sentences, or grammar, arises from exposure to contingencies of reinforcement. In the face of the novelty, subtlety, complexity, and speed of acquisition of verbal behavior, this position will remain difficult to defend until the field can show that a representative range of grammatical phenomena is within reach of its interpretive tools. Using modern English as a case in point, this article points to the important role of automatic reinforcement in language acquisition and suggests that Skinner's concept of autoclitic frames (e.g., X is taller than Y ) is central to a behavioral interpretation of grammatical phenomena. An enduring puzzle facing this interpretation is how stimulus control can shift from word to word in such frames as one speaks, for such permutations of verbal forms are often novel and rapidly emitted. A possible solution to the puzzle is offered by a consideration of contextual cues, prosodic cues, and the stimulus properties of the roles played by the content words that complete the frames. That these roles have discriminable stimulus properties is supported by considering that in Old English such roles directly controlled case inflections that correspond to positions in autoclitic frames. Continuing to develop behavioral interpretations of grammar is an important pursuit in its own right, whether or not it is sufficient to build bridges to other paradigms.