Articles: amines.
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The contribution of the response-reinforcer dependency to the control of behavior was investigated. Pigeons were trained to key peck under a variable-interval schedule of reinforcement. ⋯ Response rates were related to the percentage of response-dependent reinforcement with lower response rates associated with smaller percentages of response-dependent reinforcement. The results suggest that the response-reinforcer relation exerts control over behavior in a manner similar to that exerted by other parameters of reinforcement.
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The author examines some of the causes of today's socio-medical problems, suggesting family life education as one method of preventing these problems. The development of such a program in Victoria, B. ⋯ Evaluation of such programs is difficult, but one of the more obvious gains was bridging the communication gap between generations, enabling students to discuss with ease hitherto taboo subjects with doctors parents or teachers. The Victoria family life education program was started seven years ago.
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Rats were trained to press a lever under schedules of food postponement. In the absence of lever presses, food was delivered periodically (food-food interval). Responses initiated a second interval (response-food interval) that was reset by each additional response. ⋯ However, responding was maintained in one animal when the food-food interval was decreased from 120 to 15 sec with the response-food interval at 30 sec. Results, in terms of several dependent variables, are compared with data on shock avoidance. Effects of response-independent and response-produced food and shock are discussed.