title: Schedule control of the vocal behavior of Cebus monkeys.
abstract: The vocal behavior of three Cebus monkeys was maintained by fixed-ratio schedules of response dependent reinforcement at values between fixed-ratio 1 and fixed-ratio 15. In one monkey that was exposed to variable-interval, fixed-interval, and conjunctive fixed-ratio fixed-interval schedules of reinforcement, vocal responding occurred at a low rate, but schedule-appropriate patterns were maintained. The rates and patterns of responding engendered indicated that the vocal operant can be brought under schedule control in the monkey by the use of response-dependent reinforcement.
authors.forename: J D
authors.initials: JD
authors.lastname: Leander
authors.forename: M A
authors.initials: MA
authors.lastname: Milan
authors.forename: K B
authors.initials: KB
authors.lastname: Jasper
authors.forename: K L
authors.initials: KL
authors.lastname: Heaton