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311.
Kyllingsbæk S Markussen B Bundesen C 《Journal of experimental psychology. Human perception and performance》2012,38(3):628-642
The authors propose and test a simple model of the time course of visual identification of briefly presented, mutually confusable single stimuli in pure accuracy tasks. The model implies that during stimulus analysis, tentative categorizations that stimulus i belongs to category j are made at a constant Poisson rate, v(i, j). The analysis is continued until the stimulus disappears, and the overt response is based on the categorization made the greatest number of times. The model was evaluated by Monte Carlo tests of goodness of fit against observed probability distributions of responses in two extensive experiments and also by quantifications of the information loss of the model compared with the observed data by use of information theoretic measures. The model provided a close fit to individual data on identification of digits and an apparently perfect fit to data on identification of Landolt rings. 相似文献
312.
<正>如达米特所指出的:"弗雷格关于思想及其构成涵义的看法是神话式的。这些恒久不变的实体居住在‘第三域’(the third realm),后者既不同于物理世界,也不同于任何经验主体的内心世界……。 相似文献
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Psychologists know a lot about the political and ideological correlates of people scoring high on authoritarianism. However, psychologists have less knowledge about such people's everyday pursuits. In the present study, the authors examined authoritarian interest in film, live events, music, and reading. A predictable pattern of correlates emerged. For example, authoritarians enjoyed activities in which physical conflict was prominent, whereas authoritarians tended not to like entertainment that offered introspection. In general, the present results were consistent across 2 samples (N = 120, N = 90). Although men and women had significantly different preferences on over 0.5 of the leisure pursuits (e.g., men enjoyed action films more than did women), there were no significant gender differences in the magnitudes of correlates with authoritarianism. In general, leisure interests appeared to be partly manifestations or expressions of authoritarian tendencies. 相似文献
318.
Söderfjell S Molander B Johansson H Barnekow-Bergkvist M Nilsson LG 《Scandinavian journal of psychology》2006,47(5):349-359
The present study aimed at comparing participants with and without self reported musculoskeletal pain in a normal population with regard to performance on a range of tests for episodic memory, semantic memory, and other cognitive functions and to see if expected differences interacted with age. The results showed that participants with pain performed worse on a range of tasks as compared to participants without pain, and that these differences occurred regardless of age. The most robust effects of pain were displayed on tests for vocabulary and construction ability as these were the only effects that remained significant after controlling for years of education and reported depression in separate analyses. When depression and education were controlled for in the same analysis, even these effects were eliminated, suggesting interplay between pain, depressive status, and educational level in the negative effects on cognitive functioning. 相似文献
319.
A previous experiment investigating visuomotor adaptation in typically developing children and children with Developmental Coordination Disorder (DCD) suggested poor adaptation to an abruptly induced visuomotor perturbation. In the current study, using a similar center-out drawing task, but administering either an abrupt or a gradual perturbation, and twice as many adaptation trials, we show that typically developing children are well able to successfully update an existing internal model in response to a 60 degrees rotation of the visual feedback, independent of the perturbation condition. Children with DCD, however, updated their internal map more effectively during exposure to an abrupt visuomotor perturbation than to a gradual one. This may suggest that the adaptation process in children with DCD responds differently to small vs. large steps of visuomotor discrepancies. Given the known role of the cerebellum in providing an error signal necessary for updating the internal model in response to a gradual visuomotor distortion, the results of our study add to the growing body of evidence implicating compromised cerebellar function in DCD. 相似文献
320.
Do antidepressants have an equivalent risk-benefit ratio? Venlafaxine, a serotonin-norepinephrine reuptake inhibitor, is an effective antidepressant for treating major depression. The results of some clinical studies have suggested that venlafaxine may have more potent efficacy in sustaining remission in patients with major depression. Comparative clinical studies, however, lack suitable power to discern treatment differences in safety and also lack a quantitative basis for comparing risk and benefit. A global benefit-risk analysis of pooled data from eight randomized, double-blind, clinical trials of the safety and efficacy of venlafaxine and selective serotonin reuptake inhibitors (SSRIs) was performed. By using the ratio measure of risk-benefit, patients treated with venlafaxine (n=851) for 6-8 weeks experienced a relative gain of 1.57 compared with SSRI-treated patients (n=743) and a relative gain of 2.27 compared with placebo-treated patients (n=439). Subgroup analyses showed a relative gain of 1.35 for venlafaxine-treated patients (n=538) compared with fluoxetine-treated patients (n=549) and a relative gain of 2.53 compared with placebo-treated patients (n=357). A dose-response relationship was apparent between low (<75 mg/day), medium (75-150 mg/day), and high (>150 mg/day) dosages of venlafaxine; r values were 0.758, 0.822, and 1.181, respectively (P=.023, high dosage versus placebo; P=.030, medium dosage versus placebo). Important differences in risk and benefit exist between venlafaxine and SSRIs as a group compared with fluoxetine alone. A significant gain in benefit-risk in the treatment of major depression was observed with an increase in venlafaxine dosage from 75->150 mg/day. 相似文献