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201.
Nicole M. DeRosa Matthew D. Novak Allison J. Morley Henry S. Roane 《Journal of applied behavior analysis》2019,52(4):1021-1033
Autism spectrum disorder (ASD) is marked by deficits in social communication and the presence of restrictive and/or repetitive behaviors or interests. Motor stereotypy is a form of repetitive behavior that is common in ASD. Response Interruption and Redirection (RIRD) and response blocking (RB) are two interventions found to be efficacious in reducing motor stereotypy. However, the current literature presents with inconsistencies regarding the relative efficacy of these two procedures. Thus, we sought to replicate and extend previous literature by evaluating the efficacy of both interventions on reducing motor stereotypy among 3 individuals with ASD. We also sought to evaluate how variations in data analysis affected the interpretation of treatment outcomes. Results indicated that both interventions were equally efficacious at reducing stereotypy when analyzing data exclusive of treatment‐implementation time. However, when analyzing total session time data, RB produced greater and more sustained reductions in stereotypy across all participants. These results emphasize the importance of data analysis decision‐making in evaluating intervention outcomes. 相似文献
202.
William W. Maddux Jamie Barden Marilynn B. Brewer Richard E. Petty 《Journal of experimental social psychology》2005,41(1):19-35
The current research explored the interaction of context and motivation to control prejudice reactions (MCPR) on automatic evaluative responses toward individuals of different races. Three studies incorporated contextual backgrounds into an evaluative priming procedure. Across all three studies, White participants low in MCPR demonstrated automatic ingroup biases when threatening contexts were presented. However, in contexts where targets could be construed as threatening, Whites high in MCPR showed automatic outgroup biases in favor of Blacks over Whites. Importantly, this outgroup bias was driven by an automatic inhibition of negative responses toward Blacks. The results indicate that even at the automatic level, people high in motivation to control prejudice can inhibit negative responses toward Blacks in contexts that have cues associated with prejudice. 相似文献
203.
We manipulated two parameters of response blocking to reduce pica: (a) the criteria for initiating the procedure (either earlier or later in the response chain) and (b) the distance from which the procedure was initiated. Results suggested that response blocking may be effective only when implemented early in the chain and with near-perfect consistency. Further, additional treatment components may be required to eliminate all pica attempts. 相似文献
204.
In golden hamsters, the expression of a conditioned place preference (CPP) or avoidance (CPA) is regulated in a circadian pattern such that the preference and avoidance are exhibited strongly at the circadian time of prior training, but not at other circadian times. In the rat, reports are conflicting regarding whether time of day learning is evident. We investigated whether this conflict arises because different strains of rat have been used. In this experiment, Long Evans and Wistar rats were trained at a specific circadian time to discriminate between a context paired with food reward and an unpaired context. Animals were then tested for preference at the same or a different circadian time. Long Evans rats showed preference for the paired context at both times tested, whereas Wistar rats showed preference only when training and testing times matched. The results show that time of day learning can be generalized to rats using the Wistar strain. 相似文献
205.
Landi N Perfetti CA Bolger DJ Dunlap S Foorman BR 《Journal of experimental child psychology》2006,94(2):114-133
To acquire representations of printed words, children must attend to the written form of a word and link this form with the word's pronunciation. When words are read in context, they may be read with less attention to these features, and this can lead to poorer word form retention. Two experiments with young children (ages 5-8 years) confirmed this hypothesis. In our experiments, children attempted to read words they could not previously read, during a self-teaching period, either in context or in isolation. Later they were tested on how well they learned the words as a function of self-teaching condition (isolation or context). Consistent with previous research, children read more words accurately in context than in isolation during self-teaching; however, children had better retention for words learned in isolation. Furthermore, this benefit from learning in isolation was larger for less skilled readers. This effect of poorer word retention when words are learned in context is paradoxical because context has been shown to facilitate word identification. We discuss factors that may influence this effect of context, especially the role of children's skill level and the demands of learning new word representations at the beginning of reading instruction. 相似文献
206.
Williams BA 《Journal of the experimental analysis of behavior》1975,24(2):215-225
Two experiments were conducted to extend the blocking effect to the reinforcement of a response. A delayed reinforcement contingency was presented to subjects with or without a previously pretrained response available during the delay interval. The interpolated response had no scheduled effect on delivery of the reinforcer, but its availability reduced strengthening of the initial response, which completely extinguished for some subjects. The results were interpreted as support for blocking as a fundamental principle of behavior, and as evidence against the principle of reinforcement being stated solely in terms of temporal proximity between response and reinforcer. 相似文献
207.
Hartmut Rübeling 《Integrative psychological & behavioral science》1993,28(1):29-45
The role of Pavlovian contingencies in human skilled motor behavior was investigated in three experiments by means of a new
conditioning preparation. In Experiment 1 the present method was shown to be appropriate for the study of associative learning.
Subjects who experienced a standard delay configuration performed significantly more conditioned responses than subjects who
received either backward conditioning or random pairings. Stimulus generalization was shown to be slight in two additional
groups. Subsequent experiments examined conditioning with multiple conditioned stimuli (CSs). In particular, in Experiment
2 some reciprocal overshadowing was demonstrated when two conditional stimuli (tone and vibration) were compounded. Experiment
3 investigated blocking. Blocking was less than expected, however. Subjects’ perceptions of the stimuli and reaction time
data suggest that a certain proportion had shifted their attention to the added element of the CS compound. Results are discussed
in relation to other studies on Pavlovian learning in humans and animals, which are concerned with “stimulus selection.” 相似文献
208.
Fields L 《Journal of the experimental analysis of behavior》1978,30(1):123-128
A successive discrimination between red positive and green negative stimuli was established with pigeon subjects. Then, lines with different angular orientations were superimposed on one of the colors to form compound stimuli. Finally, either the colored element of the positive compound, the colored element of the negative compound, or both colored elements together, were gradually attenuated. Before each attenuation, the line elements were presented alone against dark backgrounds as probes to assess the degree to which they had acquired control of responding. When the positive color was attenuated alone or in conjunction with the negative color, angular orientation acquired control of responding in an errorless fashion. Lines, however, did not acquire control when only the negative component was attenuated. These results were interpreted in terms of changes in the predictability of reinforcement by color and line elements during stimulus attenuation. Finally, attenuation of the negative stimulus influenced the number of “dimensions” of the new line stimuli that acquired control of responding. When the positive stimulus was attenuated with the negative, only one dimension of the lines acquired control. When the positive stimulus was attenuated without the negative, however, more than one dimension of the lines acquired control of responding. These results were interpreted in terms of how errorless performance can be maintained while an organism attends to different dimensions of the new stimuli. 相似文献
209.
210.
James F. Briggs 《Learning and motivation》2008,39(1):13-23
The present studies examined whether the retrieval of an old ‘reactivated’ memory could be brought under the control of new contextual cues. In Experiment 1 rats trained in one context were exposed to different contextual cues either immediately, 60 or 120 min after a cued reactivation of the training memory. When tested in the shifted context, subjects exposed shortly after reactivation treated the shifted context as the original context. This transfer diminished with longer post-reactivation delays. Experiment 2 replicated the basic finding and demonstrated that the transfer of the old retrieval cues was specific to the contextual cues present during exposure. These findings are consistent with previous research [i.e., Briggs, J. F., Fitz, K. I., & Riccio, D. C. (in press). Transfer of memory retrieval cues in rats. Psychonomic Bulletin & Review] showing the transfer of retrieval cues for a new memory, and demonstrating a similarity (in this case) between newly acquired and old reactivated memories. 相似文献