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191.
Leo M. Hurvich Dorothea Jameson Joseph D. Cohen 《Attention, perception & psychophysics》1968,4(2):65-68
The notion is gaining currency that observers who are distributed normally with respect to commonly measured indices of color vision, may be bimodally distributed with respect to the spectral locus of unique green. Experimental conditions which can produce such deviations from a normal distribution are explored, and it is concluded that the “bimodality” results reported in the literature may reflect differential chromatic adaptation effects. Experimental conditions which guarantee a neutral state of adaptation yield spectral unique green loci that show no evidence of bimodality. 相似文献
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The variance of the number of mutual choices in sociometry 总被引:1,自引:0,他引:1
The variance of the number of mutual dyads in a sociometric situation where each member of a group chooses independently and at random is derived for unrestricted numbers of choices per group member, as well as for a fixed number of choices. The distribution of the number of mutuals is considered.We are indebted to Robert Bush and Hartley Rodgers of Harvard University for helpful criticisms. 相似文献
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Leo Goldman 《Journal of counseling and development : JCD》1971,49(10):833-835
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Noah C. Berman Michael G. Wheaton Jonathan S. Abramowitz 《Behaviour research and therapy》2012,50(12):761-766
The present study used an in vivo paradigm to examine whether the victim's vulnerability in a harm-related intrusion affects beliefs about the importance of thoughts (i.e., Thought Action Fusion; TAF). Sixty-six undergraduate students at a large university were randomly assigned to imagine either a vulnerable (e.g., elderly man) or able-bodied individual (e.g., strong youthful male) they know getting into a car accident and provided in vivo ratings of anxiety, guilt, likelihood, moral wrongness, and urges to neutralize. Results indicated that thinking of car accident involving a vulnerable, compared to an able-bodied person, provoked more distress (anxiety and guilt), stronger feelings of moral wrongness, greater urges to cancel the effects of thinking such thoughts, and higher estimates of the likelihood that the collision would occur. The findings of our study broadly support Rachman's (1998) assertion that more significance and importance is attached to negative thoughts about vulnerable or helpless people. Current findings are discussed in terms of the cognitive-behavioral model of obsessions and clinical implications are addressed. 相似文献
200.
The present study investigates the human-specificity of the orienting system that allows neonates to look preferentially at faces. Three experiments were carried out to determine whether the face-perception system that is present at birth is broad enough to include both human and nonhuman primate faces. The results demonstrate that the newborns did not show any spontaneous visual preference for the human face when presented simultaneously with a monkey face that shared the same features, configuration, and low-level perceptual properties (Experiment 1). The newborns were, however, able to discriminate between the 2 faces belonging to the 2 different species (Experiment 2). In Experiment 3, the newborns were found to prefer looking at an upright, compared with an inverted, monkey face, as they do for human faces. Overall, the results demonstrate that newborns perceive monkey and human faces in a similar way. These findings are consistent with the hypothesis that the system underlying face preference at birth is broad enough to bias newborns' attention toward both human and nonhuman primate faces. 相似文献