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71.
The effects of changes in signal-to-noise ratio (SIN) and feedback state on the operator’s detection behavior, particularly derived operator thresholds, were investigated using a discrete visual signal. It was found that: (1) the operator behaves as if he has established different thresholds as a function of S/N; (2) his decision thresholds are relatively independent of the presence or absence of feedback; and (3) the operator will change his threshold accordingly for a change from one S/N to another. A model of the operator’s behavior, which introduced the concept of “operator” noise. yielded predictions of detection and false alarm probabilities which were extremely close to the observed values. 相似文献
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Neil Levy 《Philosophical Psychology》2016,29(6):813-825
According to the ego-depletion account of loss of self-control, self-control is, or depends on, a depletable resource. Advocates of this account have argued that what is depleted is actually glucose. However, there is experimental evidence that indicates that glucose replenishment is not necessary for regaining self-control, as well as theoretical reasons for thinking that it is not depleted by exercises of self-control. I suggest that glucose restores self-control not because it is a resource on which it relies, but because it serves as a signal of environment quality. I suggest that the evidence is better explained by a rival opportunity costs model of self-control than by the ego-depletion account. 相似文献
75.
Applied Research in Quality of Life - 相似文献
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Social cognitive predictors of 36 White preschoolers' (18 boys, 18 girls) tendencies to say they would act prosocially toward
White and African-American children were examined. White preschoolers completed measures of their tendency to engage in prosocial
behaviors directed toward White and African-American children, positive racial beliefs about White and African-American persons,
and race schematicity. Consistent with previous research examining prosocial behavior in preschoolers, girls were more likely
than boys to say they would act prosocially. White preschoolers' age in months did not correlate significantly with their
tendencies to engage in prosocial behaviors toward White children. However, age in months was negatively correlated with White
preschoolers' inclinations to direct prosocial behaviors toward African-American children. Consistent with an emerging literature
concerning the role of social cognitive factors in young children's race schema development, White preschoolers' race schematicity
was significantly predictive of their tendencies to say they would engage in prosocial behaviors toward African-American children.
Patterns of results partially replicate previous prosocial behavior research, and demonstrate the importance of social cognitive
variables on young children's prosocial behaviors.
This research was undertaken as part of a graduate program in psychology at the University of Wyoming by the first author
under the direction of the second author. The authors express gratitude to Karen Bartsch, Ph.D., and Bernita Quoss, Ph.D.,
and Jesse Barber, Sylvia Jones, and Nicole Martin of the University of Wyoming and to Nancy Eisenberg, Ph.D., of Arizona State
University. 相似文献
77.
Prior research has identified political efficacy and political interest as strong predictors of political participation, but few studies have examined these two attitudes in tandem or compared their relative importance vis‐à‐vis political participation. Drawing on the expectancy‐value model of motivation, we begin to address this research gap while also considering several related issues. Our sample includes a diverse group of high school students in grades 10, 11, and 12 (N = 422) from the midwestern United States. Through quantitative analyses of participants’ survey data, we found that political interest (a central aspect of value) and political efficacy (closely related to expectancy) predicted participants’ expected future political participation, controlling for background characteristics—and that political interest was a particularly strong predictor. In addition, we identified political‐engagement differences on various demographic measures, such as grade level. We also found a significant interaction between political interest and internal political efficacy, suggesting that high levels of both attitudes can have an especially positive effect on adolescents’ political participation. We discuss the implications of these findings for researchers and educators interested in fostering political engagement among youth. 相似文献
78.
Contact with bisexual individuals reduces binegativity among heterosexuals and lesbian women and gay men 下载免费PDF全文
Ashley Lytle Christina Dyar Sheri R. Levy Bonita London 《European journal of social psychology》2017,47(5):580-599
Although binegativity, the stigmatization of bisexuality, is prevalent among heterosexual and lesbian and gay communities, little research has addressed how the quantity and quality of intergroup contact affect binegativity. Drawing on intergroup contact theory, this study examined contact with and attitudes toward bisexuals among heterosexual undergraduates, heterosexual adults, and lesbians and gay men. Knowing more bisexuals (quantity) predicted more positive attitudes toward and decreased intergroup anxiety with male and female bisexuals. A multilevel structural equation model indicated that contact quality simultaneously predicted higher perceived stability of female bisexuality (but not male bisexuality) and tolerance of and less intergroup anxiety with male and female bisexuals when contact quantity was controlled for. This research suggests that both quantity and quality of contact with bisexuals predicts improved intergroup attitudes. Implications for future research on reducing binegativity are discussed. 相似文献
79.
Roger Levy 《心理与行为研究》2011,9(1):53-64
One nearly ubiquitous assumption in models of linguistic comprehension and of eye movement control in reading alike is of partial modularization between word-level and sentence-level processing: that the outcome of word recognition, and thus the input to sentence-level comprehension, is a categorial representation. Yet such a partial modularization throws away residual uncertainty regarding word identity that might potentially be of value to the comprehender further downstream in the sentence. Here I describe a line of research combining computational modeling with experimental eye-tracking work to explore the consequences of removing this partial modularity assumption. 相似文献
80.