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Rapid control of responding by sound location is obtained in squirrel monkeys when sound stimuli are presented from one of two loudspeakers, each one adjacent to a response key. With this arrangement of loudspeakers and response keys, squirrel monkeys quickly learn to respond on the key near the source of the sound stimulus, and this pattern is the same whether or not responses near the sound source are differentially reinforced. This result may depend on a pre‐experimental tendency in squirrel monkeys to orient head and eyes toward a sound, which would lead the animal to look at the response key in front of the loudspeaker producing the sound. The present experiment sought to determine whether visual stimuli are necessary for rapid control of responding by sound location. Two monkeys were trained in darkness in a sound‐localization task similar to that described above. Results were similar to those obtained from animals trained in light, indicating that visual stimuli are not required for rapid acquisition of sound‐localization behavior in monkeys.

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Nursing‐home residents have frequently been characterized as unoccupied and disengaged. At the outset of the present study, most residents were to be found in their own rooms, not exhibiting gross motor behavior or social interaction, and not participating in appropriate activities. To modify residents' levels of participation with the environment, a manipulative area was provided in the lounge. Participation in the lounge averaged 20% on days when the activity was not available, but increased to a mean of 74% on days when equipment and materials were given and residents were prompted to participate. When prompts were withdrawn and materials were available only by request, mean participation fell to 25%. The findings demonstrate that manipulative activities can support a high level of participation with the environment, if residents are prompted to use equipment and materials.

Seven high‐school trainees each conducted training sessions with two profoundly retarded children. Each trainee was asked to teach one child to follow the instruction “Bring ball” and the other child to follow the instructions “Sit down” and “Come here”. During baseline sessions, before the trainees had been instructed in behavior‐modification techniques, no trainee successfully taught either child to follow the instructions. After differing numbers of baseline sessions, trainees were exposed to training procedures designed to teach them to teach one child to follow the instruction “Bring ball”. The training procedures consisted of videotaped modelling, rehearsal, and corrective feedback and praise. Following the training procedures, four of the seven trainees successfully taught their child to follow the instruction “Bring ball”. Further, all trainees were able to teach their other children to follow the instructions “Sit down” and “Come here”, even though they had received no modelling, rehearsal, or feedback on how to teach the children to follow these instructions. The ability of the trainees to teach new behaviors to different children indicates the development of generalized skills in behavior modification.