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排序方式: 共有124条查询结果,搜索用时 15 毫秒
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This study compared the effectiveness of differential negative reinforcement of other behavior (DNRO) and alternative behavior (DNRA) for reducing self-injurious tantrums maintained by escape from demands in a 4-year-old girl with severe retardation. Both DNRA and DNRO reduced self-injury and increased independent performance of two tasks (tooth brushing and bathing); however, improvement on both measures was greater with the DNRA intervention. 相似文献
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William E. Mansbach Ryan A. Mace 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2018,25(1):33-48
We describe the development and validation of The Brief Cognitive Impairment Scale (BCIS), a cognitive screening instrument designed for persons with severe-stage dementia. Psychometric analyses were performed on neuropsychological data from long-term care residents (N = 247) who completed a brief battery of tests, including the BCIS. A principle component analysis yielded three factors that provide insight into how persons with severe dementia cognitively process information and may tolerate specific aspects of social stimulation, such as during personal care. A BCIS cut score can be used to identify severe dementia with a sensitivity of .82, a specificity of .84, and an area under the curve of .89. It may be used by clinicians or caregivers when advanced dementia is suspected, as an alternative to measures with suspected floor effects, when residents cannot tolerate more demanding assessment tools, and as part of non-pharmacologic treatment plans for behavior disturbances associated with dementia. 相似文献
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F. Charles Mace 《Journal of applied behavior analysis》1996,29(4):557-563
Efforts to develop behavioral technologies from advances in basic research assume that results from studies with nonhuman subjects can, in some instances, be applied to human behavior. The behavioral principles likely to be most useful for application are those that represent robust general behavioral relations. Basic and applied research on behavioral momentum suggests that there is a general behavioral relation between the persistence of behavior and the rate of reinforcement obtained in a given situation. Understanding the factors that affect behavioral persistence may have important implications for applied behavior analysts that justify studies aimed at establishing the generality and limits of the functional relation between reinforcement rate and behavioral persistence. Strategies for establishing the generality of behavioral relations are reviewed, followed by a brief summary of the evidence for the generality of behavioral momentum. 相似文献
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The present paper reports three investigations of new kinetic information for transparent depth using computer-generated dot patterns. An initial demonstration showed that separation in depth could be obtained by translating rectangular lattices of dots through one another like intersecting columns of marching soldiers. The first two experiments showed that diagonal interactions between lattices created significantly stronger separation than did horizontal or vertical interactions (horizontal was, in turn, stronger than vertical) and that patterns which translated through one another without any of the individual elements intersecting were better separated than those whose rows or columns intersected in register. The third experiment showed that random patterns interacting in any direction created the strongest separations of all the patterns observed. Results were taken to indicate that a unified theory of depth information, developed in the context of James Gibson’s ecological optics, must incorporate both spatial and kinetic structure in its specification of necessary and sufficient stimulus conditions. 相似文献
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The ontogeny of defensive reactions in the rat: Influence of the monoamine transmission systems 总被引:2,自引:0,他引:2
The effects of neonatal treatment of rats with the neurotoxins 5,7-dihydroxytryptamine and 6-hydroxydopamine on the ontogeny of the ultra sound vocalization and the immobility response were studied. The 5,7-dihydroxytryptamine treated rats showed reduced strength of both reactions indicating involvement of the serotonin system in their ontogeny. This hypothesis was supported by experiments with depletion of serotonin by para-chlorophenylalanine followed by replenishment with 5-hydroxytryptophan. The 6-hydroxydopamine treated rats showed normal defensive reactions, but displayed hyperactivity from their second week of age. The role of the dopamine system in the defensive reactions was studied by variations of the dopamine activity level by traditional tools: depletion by α-methyl-tyrosin followed by replenishment by l -DOPA; stimulation or inhibition of the dopamine receptors by apomorphine or haloperidol. The results suggested an inhibitory function of the dopamine system in both defensive reactions, antagonistic to that of the serotonin system. 相似文献