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861.
Gregory J Zelinsky Rajesh P N. Rao Mary M. Hayhoe Dana H. Ballard 《Psychological science》1997,8(6):448-453
Abstract— Given that attention precedes an eye movement to a target it becomes possible to use fixation sequences to probe the spatiotemporal dynamics of search Applying this method to a realistic search task, we found eye movements directed to the geometric centers of progressively smaller groups of objects rather than accurate fixations to individual objects in a display Such a binary search strategy is consistent with zoom-lens models panting an initially broad distribution of search, followed by a narrowing of this search region until only the target is selected We also interpret this oculo-motor averaging behavior as evidence for an initially parallel search analysis that becomes increasingly serial as the search process converges on the target. 相似文献
862.
In a recognition memory test for a just-studied word list, subjects responded positively or negatively to each test word in the presence of another subject, with the two taking turns to call out their responses. Responses given second tended to conform to those given first. This was so for responses to both targets and lures and following both positive and negative first responses, although the effect was sharply reduced for targets given a negative first response. The same pattern of results was obtained in a second experiment, in which an incognito confederate replaced one of the subjects and so brought one set of responses under full experimenter control. These experiments illustrate a powerful effect of social pressure on recognition responses. 相似文献
863.
Dana RH 《Journal of personality assessment》1996,66(3):472-487
Assessment practice with multicultural populations in the United States requires cultural competence. Culturally competent assessment includes culture-specific styles of service delivery, use of the client's first language, and an evaluation of the client as a cultural being prior to test administration using cultural orientation categories. This information is essential for understanding health/illness beliefs, to indicate the possible presence of culture-specific symptoms, and to select standard or culture-specific tests. Assessment ethics recognize the desirability of alteration or modification of standard tests by translation and development of new norms. Cross-cultural construct validity, response sets, and cultural variables are also research priorities. Culture-specific tests should be constructed and validated for some clients as determined by cultural orientation status. Feedback of test findings to clients and significant others should be consistent with cultural expectations. Professional and societal benefits of cultural competence in assessment are suggested. 相似文献
864.
Using the Theory of Planned Behavior to Predict Intention to Use Condoms Among Male and Female Injecting Drug Users 总被引:3,自引:0,他引:3
Nancy H. Corby Margaret Schneider Jamner Richard J. Wolitski 《Journal of applied social psychology》1996,26(1):52-75
This study tested the utility of the theory of planned behavior (TPB) for understanding and predicting condom use intentions among male and female injecting drug users (IDUs). Interviews were conducted with 405 male and 315 female sexually active IDUs. Participants indicated their intentions to use condoms with main and nonmain sexual partners as well as attitudes, social norms, partner norms, and perceived behavioral control relevant to condom use with each partner type. The TPB accounted for 36 to 48% of the variance in intentions to use condoms. Intentions were related to attitudes, regardless of partner type. Partner norms were related to intentions to use condoms with main partners (men and women) and nonmain partners (men only). Social norms did not predict intentions, regardless of partner type. Perceived behavioral control was related to intentions to use condoms with main partners (men and women) and nonmain partners (women only). The findings are interpreted in light of the roles of cooperation, intimacy, and concern about self-protection. 相似文献
865.
The influence of intensity range on the perceived magnitude of a stimulus is well documented and usually attributed to response biases. Recent studies, however, have suggested that the range effect might be sensory in origin. To test this notion, we had one set of subjects compare loudness intervals in three conditions : a broad-range condition (15 tones, 23–95 dB SPL), a soft shortrange condition (the lowest 10 tones from the broad-range condition), and a loud short-range condition (the highest 10 tones). Nonmetric scaling showed that the broad-range and loud short-range conditionshad identical loudness functions, However, the second derivative of the loudness function was larger for the soft short-range condition than fox the broad-range condition. This pattern of results is consistent with the notion of a nonlinear ampler whose gain and degree of nonlinearity are adjusted under top-down control, so as to prevent distortion and increase discriminabztity. 相似文献
866.
Bruce Schneider Scott Parker Glenn Farrell Gary Kanow 《Attention, perception & psychophysics》1976,19(4):309-320
In Experiment 1, subjects were required to estimateloudness ratios for 45 pairs of tones. Ten 1,200-Hz tones, differing only in intensity, were used to generate the 45 distinct tone pairs. In Experiment 2, subjects were required to directly compare two pairs of tones (chosen from among the set of 45) and indicate which pair of tones had the greaterloudness ratio. In both Experiments 1 and 2, the subjects’ judgments were used to rank order the tone pairs with respect to their judged loudness ratios. Nonmetric analyses of these rank orders indicated that both magnitude estimates of loudness ratios and direct comparisons of loudness ratios were based on loudnessintervals ordifferences where loudness was a power function of sound pressure. These experiments, along with those on loudness difference judgments (Parker & Schneider, 1974; Schneider, Parker, & Stein, 1974), support Torgerson’s (1961) conjecture that there is but one comparative perceptual relationship for ioudnesses, and that differences in numerical estimates for loudness ratios as opposed to loudness intervals simply reflect different reporting strategies generated by the two sets of instructions. 相似文献
867.
868.
869.
Two experiments examined the interaction of vision and articular proprioception in simple one-hand catching. In Experiment 1 (N = 18) skilled baseball and softball players used the left and right hands to catch slowly moving tennis balls, while Experiment 2 (N = 16) used novice catchers as subjects. In half the trials, sight of the catching hand was prevented by placing a screen alongside the subjects' face. Results of Experiment 1 revealed that the screen caused minimal disruption of the positioning phase of the catch, with moderate disruption of the grasping phase. However, for the unskilled subjects of Experiment 2, the screen caused considerable disruption of positioning. The data provide only minimal support for Smyth and Marriott' (1982) contention that limb position is inadequately specified by articular proprioception. It is argued that skill level serves as a mediator in the ability to use proprioception for limb positioning, but vision appears necessary to control the precise temporal organization of the grasp phase of one-hand catching. 相似文献
870.
Potential differences in the person orientation of male and female high school students that are likely to have a significant influence on their achievement strivings were investigated. A questionnaire, consisting of several indices of person orientation, was administered to 848 grade 10 and 12 students. The data revealed that boys are especially susceptible to anti-intellectual influences from their peers and suggest that the interference of affiliative concerns with achievement behavior, a problem that has received considerable attention in the psychology of women, may also be very relevant to understanding the academic underachievement of males. 相似文献