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921.
Arnold Rincover Crighton D. Newsom O.Ivar Lovaas Robert L. Koegel 《Journal of experimental child psychology》1977,24(2):312-323
The purpose of this experiment was to assess the reinforcing properties of sensory stimulation for autistic children. Three different types of sensory stimulation were used: music, visual flickering stimulation (e.g., strobe light), and visual movement (e.g., windshield wiper). In a given session, one of the three kinds of sensory stimulation was presented for 5 sec contingent upon the children's bar pressing (FR5). In Phase I, which was designed to assess the differential reinforcement value of these events, four children participated in sessions with each of the sensory events. In Phase II, designed to assess variables influencing the maintenance of responding for the sensory events, two children continued to participate in sessions with their preferred sensory event until satiation occurred. The results showed the following: (1) Sensory events could be used as reinforcing stimuli to produce a high rate of responding which was relatively durable over time: (2) the reinforcement function of the sensory events was idiosyncratic across children. with one child preferring one kind of sensory event, and another child preferring a different kind; (3) there was substantial variability in daily response rates: and (4) when a child satiated on a particular sensory event, a relatively small change in the sensory event was sufficient to recover a high rate of responding. The results of this study suggest that sensory reinforcers can profitably be used in behavior therapy with autistic children. 相似文献
922.
The analysis of I-scale preference orders of 71 infants 2 to 9 months old to four face-like stimuli suggested a common J-scale stimulus ordering for each of the four age groups. Changes in I-scale frequencies were used as a measure of age-related changes in preference orders. Results revealed no change in preference for the age period studied. Together with other data these results suggest an ageinvariant preference for organized face-like forms from at least as early as five weeks through 9 months. This finding is at variance with some theoretical expectations. A Thurstone analysis is provided as a contrast to the J-scale analysis. Assumptions of different data analyses are considered as the basis for varying results reported in the literature. 相似文献
923.
Glenn R. Green Nathan L. Linsk Elsie M. Pinkston 《Journal of applied behavior analysis》1986,19(4):329-336
Speaking disorders frequently result in serious consequences for mentally impaired elderly people. Two examples are presented illustrating the modification of both excess and deficit rates of talking via differential reinforcement procedures. Two men exhibiting verbal disorders severe enough to impair social interactions and lead to possible nursing home placement were treated by teaching their spouses to reinforce positive and ignore undesired verbal responses. Problem behaviors were reduced sufficiently to permit continued home care, and alternative positive behaviors were increased. These findings suggest that verbal behavior of the mentally impaired elderly can be affected by applying systematic consequences and can be modified by relatively simple procedures. These procedures provide an alternative to the negative effects of labels associated with either aversive or deficient verbal behaviors, promote more positive activities, and enable continued residence at home. Further, this research provides support for the generality of the utility of training spouses to serve as behavior therapists for the impaired elderly. 相似文献
924.
Seven-year-old children, identified as impulsive on the basis of MFF performance, were given a training program intended to modify their impulsivity through modeling and self-instruction. All the subjects were of comparable intelligence, social class, geographic residence, and were matched on sex. The 40 experimental subjects were paired on the basis of race. Half the pairs were trained by white models and half by black models. While the results do not provide unequivocal support for the effectiveness of such training, they do demonstrate selective changes in impulsivity based upon racial similarities of models and subjects. The construct validity of the MFF as a measure of reflection-impulsivity and the relevance of social class membership is discussed. 相似文献
925.
The phallometric method of assessing erotic value of presented stimuli has two main tasks, one is in the breaking down of complex (potentially) sexual stimuli into components, the other is in diagnosing anomalous erotic preferences in ‘Nonadmitters’, i.e. in persons whose behaviour would imply there is such an anomaly, but who deny its presence. Differentiation between Admitters and Nonadmitters was attained by two verbal Admitter scales. Comparison of the scores on these scales with results of phallometric assessment showed (by mutual validation) that the phallometric method diagnoses Admitters more accurately than Nonadmitters. After that, the validity was tested of a new mode of the phallometric method, designed for diagnosing pedo- or hebephilia in Nonadmitters. In cases of homosexual pedophilia or hebephilia (but not in the heterosexual cases) the new Nonadmitter mode was superior to the Standard procedure. 相似文献
926.
927.
The comprehension of sentences expressing instigative causation (e.g., The horse makes the camel run) was investigated in children between the ages of 2;0 and 4;4, speaking English, Italian, Serbo-Croatian and Turkish. Cross-linguistic differences in development reveal the roles of morphological (causative particle, case inflection) and syntactic devices (periphrasis, word order) in guiding children's processing of such constructions. It is suggested that local cues (inflectional suffixes, particles, specialized causative verb forms) contribute to the more rapid development of sentence processing strategies in Serbo-Croatian and Turkish. The word order systems of English and Italian, which require that the listener hold the entire sentence pattern in mind in order to determine underlying semantic relations, contribute to slower development on this task. 相似文献
928.
Two experiments investigated the role of syntactic presupposition in sentence comprehension. In Experiment I subjects verified cleft, pseudocleft and factive complement sentences with respect to preceding context paragraphs, which contradicted either the assertion or the presupposition of the target sentence. Subjects took significantly longer to verify sentences with false presuppositions than sentences with false assertions. In Experiment II subjects verified cleft and pseudocleft sentences with respect to subsequently presented pictures. Once again, verification times for sentences with false presuppositions were significantly longer than verification times for sentences with false assertions. It was argued that these findings are more adequately explained by a “structural” hypothesis, than in terms of strategies designed to locate given and new information. 相似文献
929.
John G. Lynch 《Journal of experimental social psychology》1979,15(4):397-417
This experiment sought to determine whether previously found metric violations of additive expectancy-value models C.F. J. C. Shanteau, Journal of Experimental Psychology, 1974, 103, 680–691; J. G. Lynch and J. L. Cohen, Journal of Personality and Social Psychology, 1978, 36, 1138–1151) were attributable to the inappropriateness of these models or to nonlinearities in the relationship between numerical ratings and underlying psychological impressions. Undergraduate participants performed two tasks employing the same experimental stimuli. In the first task, they rated the subjective values of hypothetical bets, judged separately and in combination. In the second task, they made pairwise comparisons of the same bets in terms of preference. The use of the same experimental stimuli in both tasks allowed a test of alternative models of utility judgment through application of the criterion of scale convergence (M. H. Birnbaum & C. T. Veit, Perception and Psychophysics, 1974, 15, 7–15). Results suggested that the additive expectancy-value model of judgments of the utilities of combinations of outcomes should be replaced by a weighted averaging rule in which the weight given to the value of each outcome in the averaging process is greater when this value is negative and extreme than when it is neutral. 相似文献
930.
The electromyographic (EMG) integrated amplitude of masseter and laryngeal muscle groups were analyzed during five massed oral readings of 16 nonstuttering adult subjects. Reduction in dysfluencies were observed over the five trials as was a reduction in reading time across trials. Significant decreases in EMG activity across trials were found for the laryngeal, but not the masseter, EMG activity. This suggests that changes in vocal behavior thought to accompany adaptation are reflected in decreases in EMG activity of select speech-related muscle groups. 相似文献