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51.
Projective expected utility 总被引:1,自引:0,他引:1
Pierfrancesco La Mura 《Journal of mathematical psychology》2009,53(5):408-414
Motivated by several classic decision-theoretic paradoxes, and by analogies with the paradoxes which in physics motivated the development of quantum mechanics, we introduce a projective generalization of expected utility along the lines of the quantum-mechanical generalization of probability theory. The resulting decision theory accommodates the dominant paradoxes, while retaining significant simplicity and tractability. In particular, every finite game within this larger class of preferences still has an equilibrium. 相似文献
52.
Scholz U La Marca R Nater UM Aberle I Ehlert U Hornung R Martin M Kliegel M 《Neurobiology of learning and memory》2009,91(1):89-92
Acute stress has been found to have negative and implementation intentions (IIs) to have positive effects on cognitive performance. This study was the first to examine the effects of IIs on executive action control under acute psychosocial stress. Forty-two male subjects aged 21-39 years were randomly assigned to the Trier Social Stress Test (TSST) versus a rest condition. In addition, the instruction to the executive task (a go no-go task) was manipulated (IIs versus standard instruction). After the stress test, a dual-task procedure including a go no-go task was conducted. The TSST resulted in increases in cortisol response, heart rate and state anxiety compared to the rest condition. Acute stress significantly impaired go no-go performance, but only in the group without IIs. We conclude that under acute stress conditions executive functioning is reduced, but the use of IIs can be an effective strategy to overcome this negative effect. 相似文献
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Female college students' attitudes toward women were investigated to determine the effects of housing, class status, and general field of study, and to provide standardization and reliability data for the AWS scale. Spence and Helmreich's Attitudes Toward Women Scale was administered to a large sample of female college students in a coed, moderately sized, private, Eastern secular college. Results indicated that seniors tend to hold more liberal attitudes toward women than underclasswomen and students in Business and Education tend to hold more conservative attitudes toward women. Interaction effects were observed and reported. Type of housing was not related to attitudes toward women. The split-half reliability technique revealed a strong internal reliability of .92 for the AWS. 相似文献
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The effects of responses of another person or a computer occurring prior to the subjects' responses in tasks to recognition model which assumed that subjects shifted their decision criteria temporarily on each trial. A parameter representing the amount of criterion shift reliably estimated sensitivity to social influence. When the social sensitivity parameter was estimated from the data, discriminative ability, defined as d', was unaffected by the presence of social influence. Principal components analyses suggested that social sensitivity and discriminative ability represented essentially orthogonal components of subjects' decision behavior. 相似文献
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