Extinction and recovery of the discriminative stimulus effects of nicotine (0.3 mg/kg) was investigated with a devalued food reinforcer (rats sated). Sixteen rats were trained in a counterbalanced one manipulandum (nose-poke) drug discrimination procedure with the roles of nicotine and saline counterbalanced as S[superscript D] and S[superscript…

Research on learning and conditioning suggests that verbal response modification does not occur in the absence of the subject's ability to define verbally (1) the response-reinforcement relationships and (2) his intention to change his behavior in the direction of reinforcement. This seems to be true for operant conditioning of verbal behavior,…

The free play of 5 black preschool Head Start children was observed. The variables manipulated in the study were delayed instructions and reinforcement for play with selected toys, and specific versus general instructions; the correspondence between the adult's instructions and reinforcement to the children's play was assessed. The data indicated…

As a result of findings of a previous study, this study, which sought to program preschool subjects to wait one minute for reinforcement, used pause-building procedures before delay conditions were started. The children, 3- to 5-year-olds, were designated either Baseline (control) subjects (n=3) or Programmed (experimental) subjects (n=5). Though…

This study investigated the effects of between-trials variability on the alternation discrimination of retardates. Brightness and size were variable between trials and irrelevant. Initial response outcome and mental age were also independent variables. Neither between-trials variability nor mental age produced a significant main effect, while the…

This study tests the contention that a reinforcing agent's manner of administering rewards and punishments is construed by his associates as revealing his margin of freedom, and that associates are more attentive to cues concerning a reinforcing agent's dispositional qualities, and more inclined to ingratiate themselves to him, when he employes…

Three retarded children 3- to 11-years-old were trained, using prompting and reinforcement procedures, to respond correctly to three categories of prepositional requests (next to, under, and on top of). (Author)

The bibliography on learning in mentally handicapped persons is divided into the following topic categories: applied behavior change, classical conditioning, discrimination, generalization, motor learning, reinforcement, verbal learning, and miscellaneous. An author index is included. (KW)

In this article infant operant conditioning studies are grouped according to distinct procedures: free operant; discrete trial with one discriminative stimulus; discrete trial with two or more discriminative stimuli; controlled operant with two or more discriminative stimuli; and unrestricted operant with two or more discriminative stimuli.…

The areas of learning theory and classroom applications of that theory are brought together in this booklet. Although it is impossible to provide the answer to every classroom behavior problem, relating the problems and objectives of a given classroom to learning theory should facilitate the development of effective and efficient programs.…