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91.
The purpose of this paper is to demonstrate the relevance of the stack concept in neuropsycholinguistics, a stack being a file with serially ordered elements. Number names (one, two, three, …) and the names of the days in the week may be viewed in this way. In a stack structure, any element is identified by two pieces of information: the particular stack to which it belongs and its position within that stack. Two experiments are reported that demonstrate a double dissociation. A deep dyslexic patient with agrammatism was found to sort stack elements on the basis of identity of position-within-stacks, while a fluent aphasic with semantic verbal paraphasias used another criterion, grouping together the items of the same stack. First revealed when handling number names, the two psycholinguistic procedures are also shown to be differentially operative with other linguistic material. Introducing the stack concept thus permits a procedural reinterpretation of some “semantic confusions,” particularly but not exclusively those dealing with quantities. 相似文献
92.
The preponderance of empirical research in social psychology has ofren been a central issue in the ‘crisis literature’. However, no extensive empirical study has ever been undertaken vis a vis the ‘crisis’ in social psychology. In two studies, factors effecting the perceptions of social psychologists of their discipline were investigated. Although in the first study, among Dutch social psychologists, four hypotheses were tested and confirmed, a large part of the total variance in the perception of the ‘crisis’ remained unexplained. In the second study, both a worldwide sample of active social psychological researchers as well as a sample of authors of the ‘crisis literature’ were surveyed. The stances of both groups differed considerably. Although a majority of the active researchers did not agree that a crisis is at hand in social psychology, a large minority did. The active researchers agreed with many of the criticisms of social psychological research and theorizing. Attitudes on nine central issues, including the functioning of the editor/reviewer publishing system, predicted a large percentage of the total variance in the subjects' attitude toward the existence of a ‘crisis’ in their discipline. 相似文献
93.
A comparison was made of temporal integration for three different response measures in a visual detection task: (1) response frequency, (2) signal detectability as measured for rating ROC curves. (3) simple reaction times (RTs). These measures were obtained on the same trials, to the same stimuli-orange (581 rim) light pulses of 50 min of visual angle fixated foveally and presented to dark-adapted Os in a monocular Maxwellian view. All three response measures showed a period of luminance-duration reciprocity (Bloch’s law), followed by a period of partial integration. The end points of luminance-duration reciprocity (critical duration) and partial integration (utilization time) were shorter for RTs than for the response frequency and signal detectability measures. Neurophysiological.implications of differences in time constants of integration for RT and psychophysical measures are discussed. 相似文献
94.
95.
In survey research it is not uncommon to ask questions of the following type: “How many times did you undertake actiona in reference periodT of length τ?.” The relationship is established between τ and the correlation of the number of reported actions with some background variable. To this end it is assumed that the process of actions satisfies a renewal model with individual heterogeneity. Also a model has to be formulated for possible recall effects. Applications are given in the field of medical consumption. 相似文献
96.
The cost of good fortune: when positive life events produce negative health consequences 总被引:3,自引:0,他引:3
Previous research regarding the effects of positive life events on physical health has been inconclusive. We tested the hypothesis that positive life events have a detrimental effect on health only among people with negative self-views. This prediction derives from an identity disruption model of stress, which holds that an accumulation of life events that are inconsistent with the self-concept leads to physical illness. To test the hypothesis, we conducted two prospective studies in which positive life events and self-esteem were used to predict the development of illness over time. In accordance with predictions, both studies showed that desirable life changes were associated with increases in illness only among subjects with low self-esteem; among subjects with high self-esteem, positive life events were linked to better health. Implications for understanding the manner in which life events affect health are considered. 相似文献
97.
Gert Ten Hoopen Gerard Van Meurs Simone Akerboom 《Attention, perception & psychophysics》1982,31(3):256-260
Previous research has demonstrated that a sequence of tones that is alternated between ears is stretched out in echoic memory, as compared with monaural sequences. Although the stimulus onset asynchronies (SOAs) were the same in the interaural and monaural conditions, the perceptual onset asynchronies (POAs) differed by 24 msec. The present study investigated whether an analogous perceptual phenomenon exists for frequency-alternating tone sequences. It turned out that the POAs of coherent and even of streaming tone sequences were precisely the same as with nonalternating tone sequences. 相似文献
98.
Free-recall verbal learning is analyzed in terms of a probability model. The general theory assumes that the probability of recalling a word on any trial is completely determined by the number of times the word has been recalled on previous trials. Three particular cases of this general theory are examined. In these three cases, specific restrictions are placed upon the relation between probability of recall and number of previous recalls. The application of these special cases to typical experimental data is illustrated. An interpretation of the model in terms of set theory is suggested but is not essential to the argument. 相似文献
99.
100.
Association of demanding kin relations, depressive symptoms, self-esteem, and optimism was assessed among 130 low-income African American women. Demanding relations with kin were positively associated with depressive symptoms and negatively linked to self-esteem and optimism. Self-esteem and optimism were negatively associated with depressive symptoms and mediated the association of demanding relations with kin and women's depressive symptoms. Findings were discussed in terms of the detrimental effects of demanding social relations with kin and the possible role that other relationships may play in compensating for poor relations with extended family. 相似文献