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81.
Three experiments examined whether temporal uncertainty about the delivery of a response stimulus affects response force in a simple reaction time (RT) situation. All experiments manipulated the foreperiod; that is, the interval between a warning signal and the response stimulus. In the constant condition, foreperiod length was kept constant over a block of trials but changed from block to block. In the variable condition, foreperiod length varied randomly from trial to trial. A visual warning and response stimulus were used in Experiment 1; response force decreased with foreperiod length in the variable condition, but increased in the constant condition. This result is consistent with the hypothesis that responses are less forceful when the temporal occurrence of the response stimulus is predictable. In a second experiment with an auditory warning signal and a response stimulus, response force was less sensitive to foreperiod manipulations. The third experiment manipulated both the modality and the intensity of the response signal and employed a tactile warning signal. This experiment indicated that neither the modality nor the intensity of the response signal affects the relation between response force and foreperiod length. An extension of Näätänen’s (1971) motor-readiness model accounts for the main results. 相似文献
82.
Rolf G. Jacob Deborah C. Beidel Alvin P. Shapiro 《Journal of psychopathology and behavioral assessment》1984,6(2):159-165
A new procedure of assessing adherence to home practice of relaxation is presented. The technique involved the subject identifying one of four possible relaxation words of the day at the end of a taped relaxation session. The method was employed to assess the relationship between adherence to relaxation and decline of blood pressure during a 10-session/8-week relaxation program involving 17 hypertensive subjects. No statistically significant relationship was found on either a short-term or a long-term basis. An advantage of the assessment technique is that it appears easily integrated into the overall therapeutic objective for relaxation therapy; a disadvantage is that the subject needs to comply not only with the relaxation schedule but also with the monitoring procedure.This research study was funded by NIH Grant HL27159. 相似文献
83.
Rolf A. Peterson 《Sex roles》1983,9(3):321-331
Two studies assess attitudes toward the childless life-style. One study uses an unstructured response style in order to determine the motivation for and effects of the decision attributed to the person intending to be childless. The second study assesses the relationship between self-reported attitudes measures. The studies suggest the person selecting the childless life-style may be viewed by others as less well adjusted or misguided in this choice, which is inconsistent with the majority of published data on the childless spouse. 相似文献
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In order to examine therapists' discriminative responding to normal and idiosyncratic patient responses, naive subjects were presented with a simulated “patient” for treatment. The subjects were made to believe they were reinforcing normal verbalizations emitted by this patient In fact, they were listening to a tape on which normal and idiosyncratic verbalizations had been recorded. Different probabilities of normal and idiosyncratic “patient” verbalizations could be presented to the subjects by means of a digital programming unit. In one of a number of conditions, the subjects' accurate reinforcing responses were followed by an increased probability of the patient's normal verbalizations. Accurate reinforcing responses emitted by the subjects were brought under the control of normal and idiosyncratic patient responses, by use of contingent feedback, change in patient responding, and monetary reinforcers. When the patient's normal verbalizations increased in probability, so did the subjects' accurate reinforcing responses following the patient's normal verbalizations, and to a lesser degree, the subjects' inaccurate reinforcing responses following the patient's idiosyncratic verbalizations. When the patient's idiosyncratic verbalizations increased in probability, the subjects' accurate and inaccurate reinforcing responses decreased in probability. The clinical implications of these tendencies are discussed. 相似文献
86.
It is assumed that in a free-recall task the short-term store serves as a memory buffer between the long-term store and a final motor stage of word production. Because of this the retrieval process in long-term store is not hindered by the final motor stage of word production since continued output from the long-term store queues in the buffer for motoric processing. Otherwise a time consuming communication between the two processes would be necessary. A stochastic model of this conceptualization is provided to predict the temporal course of free recall as well as a paradigm in which the contribution of the short-term store in free recall can be studied. The experimental results from this paradigm were used to test the model and to estimate short-term storage capacity on the basis of the time course of free recall. The model predictions were in good agreement with the data and the capacity estimate coincides well with estimates found by totally different methods reported in the literature. 相似文献
87.
Organizational identification and “currencies of exchange”: integrating social identity and social exchange perspectives 下载免费PDF全文
Susana M. Tavares Daan van Knippenberg Rolf van Dick 《Journal of applied social psychology》2016,46(1):34-45
We integrate social exchange and social identity perspectives to propose and test the prediction that depending on their level of organizational identification, people may reciprocate the received organizational support using different “currencies of exchange”—reducing turnover intentions or, instead, engaging in extra‐role behavior. Specifically, the relationship of perceived organizational support (POS) with turnover intentions is proposed to be stronger with lower identification, whereas POS is proposed to be more closely related to extra‐role behavior with higher organizational identification. These predictions were supported in a cross‐sectional survey of N = 1,000 employees of a financial services firm. These results speak to the added value of integrating the social exchange perspective with its roots in applied psychology and the social identity perspective with its roots in social psychology in understanding the employee‐organization relationship. 相似文献
88.
Accurate perceptions of their child's academic performance are pivotal for parents' encouragement of their child's academic efforts. In research studies, parents' reports of their child's academic achievement, as well as the child's own reports, are often used as a proxy for teachers' ratings or grades. However, are parents' reports or their child's reports accurate and unbiased? We investigated whether ratings of academic performance made by mothers and their sons corresponded more closely to final grades and achievement test scores than did similar ratings made by teachers for three large samples of boys. Mothers' ratings correlated with final grades as well or better than teachers' ratings but more poorly with achievement test scores than did teachers' ratings. The seventh-grade boys' ratings correlated more poorly with both final grades and achievement test scores than did teachers' or mothers' ratings. Across all three samples combined, mothers were more likely to over-estimate rather than under-estimate the final grade. The same was true of the seventh grade sample of boys. Once the effect of final grade had been controlled, little evidence of a consistent pattern of associations between maternal demographic, parenting, and child behavior variables and either over- or underestimation was found. 相似文献
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