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221.
Irwin Pollack 《Attention, perception & psychophysics》1973,13(3):367-373
The paradigm of Eriksen and Collins, in which one-haft of the elements of a display is assigned randomly to each of two successively presented fields, was applied to the visual discrimination of one- and two-dimensional Markov constraints. In contrast with the two-flash masking paradigm, performance in the Eriksen-Collins paradigmimproves as the interval between the successively presented fields is shortened. Constraint thresholds may increase with interfield intervals as short as 20 msec. In contrast with the results of most visual information-processing tasks, increasing the duration of each field may result in sharplyelevated thresholds. The elevation of thresholds can be reduced through repeated presentation. Sharp asymmetries are also obtained with differential brightness of the two fields. 相似文献
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Analyses of information integration and of retention were used to examine the processing of deviant information in prediction and evaluation tasks. Sets of test scores were presented serially for a group of hypothetical students, and subjects were asked to evaluate the performance of each student or predict each student’s performance on a comprehensive final exam. An averaging model with greater weight for the more recent scores than for the earlier scores was supported for both types of task, but the recency was more pronounced in the prediction task. Weighting of deviant scores differed in the prediction and evaluation tasks. Significant discounting (underweighting) of deviant scores was obtained only in the prediction task, The ability to recall deviant scores on uncued tests of retention was higher in the prediction task than in the evaluation task. Prediction of future performance based on inconsistent measures of past performance thus appears to be an active process involving the discovery and discounting of unrepresentative information. 相似文献
225.
The effects of the Program for Academic Survival Skills (PASS), a group behavior management program, on behavioral observation data and standardized achievement test measures were investigated. Fifty-four of the 96 selected low-achieving, low-survival-skill students of normal IQ were assigned to an experimental condition in which their teachers used PASS. The remaining 42 were assigned to a control condition. Results indicated PASS produced significant gains in survival skills during its operation and one week following program termination in both reading and mathematics periods across grades 1–3. Findings for achievement indicated a significant gain for first-grade experimentals only in reading, with a similar but nonsignificant gain for first-grade mathematics. 相似文献
226.
Irwin Pollack 《Attention, perception & psychophysics》1971,9(1):57-60
Sequential constraints, in the form represented by equal frequencies within blocks, were imposed upon finite-state statistical generators. The sequences were encoded in the form of interval-coded pulse trains and were transduced to sound by earphones. In discrimination tests, interval thresholds between the finite states provided a measure of the relative discriminability between different sequential constraints. These thresholds are shown to be quantitatively related to the difference in uncertainty in specification of the sequences. To a first approximation: Equal interstate interval thresholds are associated with equal differences in uncertainty. 相似文献
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Mark W. Roosa Irwin N. Sandler Janette Beals Jerome L. Short 《American journal of community psychology》1988,16(2):225-239
These studies assessed the risk status of children of untreated alcoholics. In Study 1, a cross-sectional survey of 208 high school students identified 18% as having serious concern about their parents' drinking. In Study 2, 32 children of problem-drinking parents and 39 others who participated in self-help groups were surveyed. Children of problem-drinking parents were more at risk of depression, low self-esteem, and heavy drinking than their peers in the general high school population. Within self-help groups, however, children's symptomatology was not related to their parents' drinking status. The results support the need for preventive intervention for children of problem-drinking parents and for developing strategies for improving the participation rate of such children in the intervention programs that are available. 相似文献
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A dream announcing her conception and describing in symbolic terms physiological processes associated with the early stages of pregnancy was reported by a female analysand 4 days after she and her husband had engaged in intercourse for the purpose of procreation. The manifest content of the dream and the associations to it are described. The assumption that conception, ordinarily a subliminal stimulus, was a somatic stimulus in this situation is explored. It is suggested that three special factors—the patient's exceptional sensitivity to internal sensations, her strong motivation to conceive, and a contributory awakening stimulus— may have made it possible for her to perceive her conception. 相似文献