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141.
Retroactive interference is conventionally viewed as attenuated retrieval of a target association due to the training of a
second association between training and testing of the target association. In three experiments in which water-deprived rats
were used as subjects, we manipulated the durations of the time between cue termination and outcome onset (Experiment 1),
the durations of the target and the interfering cues (Experiment 2), and the durations of the outcome used during target and
interfering training (Experiment 3). Greater interference was consistently observed between associations bearing a high degree
of similarity in their temporal structure, which suggests that interference occurs between complex representations that encode
not only the physical attributes of the stimuli, but also their temporal characteristics. 相似文献
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143.
Robert Bor Riva Miller Eleanor Goldman 《International journal for the advancement of counseling》1993,16(1):47-55
HIV infection may have a psychological impact not only on those who live with the disease, but also on people who may worry that they have been infected. Counselling people who are worried about infection, but who are HIV negative is an important, yet challenging, dimension of HIV care. It forces counsellors to address how they deal with resistant patients and those who, in some cases, present serious psychological disturbances. This paper discusses the presentation and management of the worried well in HIV disease. 相似文献
144.
Russell M. Church Kevin D. Miller Warren H. Meck John Gibbon 《Learning & behavior》1991,19(3):207-214
Ten rats were trained in a temporal generalization task (the peak procedure) with variations in the time of reinforcement, the intertrial interval, and the mean and variance of the duration of nonfood trials. There were three types of asymmetry in the temporal generalization gradients: positive skew, secondary rise, and positive asymptote. Asymmetrical gradients can occur as a result of asymmetrical sources of variance, multiplicative combinations of symmetrical sources of variance, and effects of anticipation of the end of a trial and the conditions of the next trial. Ten additional rats were trained with a single time of reinforcement, a limited time of reinforcement availability, long and fixed durations of nonfood trials, and a nonresponse requirement for ending a trial. These conditions markedly reduced all asymmetrical sources of variance and led to very symmetrical gradients. These results demonstrate that none of the asymmetrical sources of variance necessarily has a substantial influence on observed temporal generalization gradients. 相似文献
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149.
Lick suppression experiments with rats revealed that the magnitude of both second-order conditioning (Experiment 1) and sensory preconditioning (Experiment 2) was superior when that conditioning was based on backward (US→CS) relative to forward (CS→US) first-order pairings of a CS and US. The superiority of backward relative to forward first-order conditioning on suppression to the higher order cues can be understood by assuming that the magnitude of higher order conditioning was determined by a memory representation of the higher order cues that provided information about the expected temporal location of the US. The results suggest that temporal information such as order between paired CSs and USs was encoded, preserved, and integrated with memory for the higher order stimuli. The relevance of these findings to memory integration in Pavlovian learning, the temporal coding hypothesis (Barnet, Arnold, & Miller, 1991; Matzel, Held, & Miller, 1988), backward excitatory conditioning, and the associative structure that underlies second-order Pavlovian fear conditioning are discussed. 相似文献
150.
The purpose of this article is to present logistic discriminant function analysis as a means of differential item functioning (DIF) identification of items that are polytomously scored. The procedure is presented with examples of a DIF analysis using items from a 27-item mathematics test which includes six open-ended response items scored polytomously. The results show that the logistic discriminant function procedure is ideally suited for DIF identification on nondichotomously scored test items. It is simpler and more practical than polytomous extensions of the logistic regression DIF procedure and appears to fee more powerful than a generalized Mantel-Haenszelprocedure. 相似文献