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Extinction of operant behavior, which involves terminating the reinforcement contingency that maintains a response, is important to the development, generalization, and reduction of behavior in clinical settings. We review basic and applied research findings on variables that influence the direct and indirect effects of extinction and discuss the potential value of a general technology for the use of extinction. We suggest that current research findings are not sufficient for the development of a comprehensive, applied technology of extinction and provide extensive guidelines for further studies on factors that may affect the course of extinction in clinical settings. 相似文献
83.
We present one method for distinguishing between extinction and punishment effects. The proportion of responses that produced a consequence (blocking) was varied while hand mouthing was treated in a man diagnosed with profound mental retardation. Response patterns across the schedule changes suggested that the blocking procedure functioned as a punishing event. 相似文献
84.
Melissa J. Shirley Brian A. Iwata SungWoo Kahng Jodi L. Mazaleski Dorothea C. Lerman 《Journal of applied behavior analysis》1997,30(1):93-104
We examined the effectiveness of functional communication training (FCT) in reducing self-injurious behavior (SIB) and in shaping an alternative (communicative) response while SIB continued to be reinforced. Following a functional analysis of 3 individuals' SIB, we attempted to teach an alternative response consisting of a manual sign to each individual, using the reinforcer that maintained SIB. When FCT was implemented without extinction, SIB remained at baseline rates for all participants, and none of the participants acquired the alternative response. When extinction was added to the training procedure, SIB decreased and manual signing increased for all participants. To determine if signing, when established, would compete with SIB when both were reinforced, extinction was then withdrawn. Signing was maintained and SIB occurred at low rates for 2 individuals, but SIB returned to baseline rates for the 3rd individual, necessitating the reimplementation of extinction. These results suggest that it may be difficult to establish alternative behaviors if inappropriate behavior continues to be reinforced, but that, when established, alternative behavior might compete successfully with ongoing contingencies of reinforcement for inappropriate behavior. 相似文献
85.
During the First World Family Therapy Congress, Dublin, 1989, the author was the only women on a six member panel discussing The New Paradigm. This article re-presents her attempt to remember women and other invalid subjects, (e.g. those in poverty) in what was imagined would be an otherwise male oriented discourse. Until recently, within family therapy, the contrary and negatory experiences of women in families and society gained little recognition. This article joins others in adding herstory to history.She is in private practice at Vico Consultation Centre.The author acknowledges her team, Nollaig Byrne and Philip Kearney; and her sister witches (The Women in Therapy Chapter), Kay Gilliland, Bernadette O'Sullivan, Mia Van Doorslaer, and Jane Williams for their valued help and comments on this paper. 相似文献
86.
M M McCarthy 《Journal of comparative psychology (Washington, D.C. : 1983)》1990,104(2):195-197
Male and female wild house mice (Mus domesticus) were allowed to remain in the cage of their parents until 30-35 days of age. When a second litter was delivered, the first litter was exposed to the younger pups for 2-10 days. In adulthood the male and female mice that had been exposed to pups as juveniles and an additional group that had cohabitated with their parents for the same length of time but were not exposed to pups were tested for infanticidal behavior. The frequency of infanticide by the adult female mice was not significantly different (55% vs. 70%, respectively). In contrast, the adult males that were exposed to pups as juveniles were significantly less likely to kill young in adulthood when compared with males that were not similarly exposed (35% vs. 80%, respectively). These data further demonstrate the strong influence of experience on the expression of infanticide by male mice and its relative unimportance to the expression of female infanticide. 相似文献
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Independence of stimulus discriminability from absolute rate of reinforcement in a signal-detection procedure. 总被引:5,自引:5,他引:0 下载免费PDF全文
Three experiments are reported in which two pigeons were trained to detect differences in stimulus duration under varying levels of absolute rate of reinforcement. Two red stimuli, differing in duration, were arranged probabilistically on the center key of a three-key chamber. On completion of the center-key duration, the center keylight was extinguished and the two side keys were illuminated white. Correct responses were left-key pecks following the shorter duration and right-key pecks following the longer duration. In Experiment 1, relative rate of reinforcement for correct responses was held constant and absolute rate of reinforcement was varied in seven conditions from continuous reinforcement to a variable-interval 90-second schedule. In Experiment 2, relative rate of reinforcement was manipulated across three different absolute rates of reinforcement (continuous reinforcement, variable-interval 15-second, and variable-interval 45-second). Stimulus discriminability was unaffected by changes in absolute or relative rates of reinforcement. Experiment 3 showed that discriminability was also unaffected by arranging the same consequences (three-second blackout) for unreinforced correct responses and errors. 相似文献