Parity is one source of automatic reinforcement that increases the probability of verbal behavior that conforms to models provided by the verbal community. Parity as a conditioned reinforcer could explain the acquisition of grammar in the absence of direct, explicit reinforcement. This possibility has been explored in previous research on…

Background: Mothers facilitate their young hearing children's word learning by making reference explicit for novel words through physical designation (e.g., with deictic gestures) and by isolating words in simple syntactic frames. As children's language skills develop, such modifications decrease. Less is known about hearing mothers' support to…

We provide an empirically updated Skinnerian-based account of verbal behavior development, describing how the speaker-as-own-listener capability in children (the capability of children to behave as speaker and listener within their own skin) accrues and how it is pivotal to becoming verbal. The theory grew from (a) findings in experiments with…