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211.
Heather M. Anson James T. Todd Kimberley J. Cassaretto 《Behavior research methods》2008,40(4):1106-1110
Verbal responses, gestures, and other physical stimuli are often used to prompt children to pay attention to their teacher, participate in group responding, and engage in independent activities in the classroom. Prompts can be intrusive and draw attention to the problem, however. In the present study, unobtrusive vibrating pagers were used to discreetly alert children to attend directly to the teacher or the ongoing activity, thus reducing the number of disruptions the children created in their classrooms. The children were then able to learn more effectively and with less interference to others in the vicinity. Specifically, 5 male children, between 4 and 7 years old, who attended a regular education preschool or regular education first-grade classroom, participated. An alternating baseline and treatment conditions design was used, in which periods of overt traditional prompting were alternated with periods of covert tactile and overt traditional prompting. The data showed that covert tactile prompting was successful in reducing the amount of overt traditional prompting that was needed for attention to a teacher, group responding, and engagement in independent activities. 相似文献
212.
限制饮食是为了控制体重, 长期严格地控制进食的倾向。大量研究表明相对于非限制性饮食者, 限制性饮食者对食物线索尤其是高能量或高美味食物线索存在认知偏向。这种偏向是基于一定的脑神经基础的如前额叶背内侧, 小脑等区域。未来研究应设置严格的筛选标准, 运用视觉odd-one-out和学习-再认实验范式, 重视认知神经机制的探讨, 开展中国限制性饮食者对食物线索加工的认知机制和主要影响因素模型的系统研究。 相似文献
213.
Todd W. Dunn Timothy B. Smith Jared A. Montoya 《Journal of counseling and development : JCD》2006,84(4):471-482
This article reviews the internal consistency reliability of multicultural competency instrumentation. Additional psychometric properties are qualitatively reviewed for commonly used instruments and 5 other measures of multicultural competency that have not previously been reviewed in the literature. Results indicate that the most widely used instruments have generally acceptable internal consistency reliability across different populations and settings. Limitations of research conducted on multicultural counseling competencies are identified, and recommendations for future research are provided. 相似文献
214.
215.
Human observers are sensitive to the '(physical) light field' in the sense that they have expectations of how a given object would appear if it were introduced in the scene in front of them at some arbitrary location. Thus the 'visual light field' is defined even in the 'empty space' between objects. In that sense the light field is akin to visual space considered as a 'container'. The visual light field at any given point can be measured in psychophysical experiments through the introduction of a suitable 'gauge object' at that position and letting the observer adjust the appearance of that gauge object (eg through suitable computer rendering) so as to produce a 'visual fit' into the scene. The parameters of the rendering will then be considered as the measurement result. We introduced white spheres as gauge objects at various locations in stereoscopically presented photographic scenes. We measured the direction ('direction of the light'), diffuseness ('quality of the light' as used by photographers and interior decorators), and intensity of the light field. We used three very different scenes, with very different physical light fields. The images were geometrically and photometrically calibrated, so we were in a position to correlate the observations with the physical 'ground truth'. We report that human observers are quite sensitive to various parameters of the physical light field and generally arrive at close to veridical settings, although a number of comparatively minor systematic deviations from veridicality can be noted. We conclude that the visual light field is an entity whose existence is at least as well defined as that of visual space, despite the fact that the visual light field hardly appears as prominently in vision science as it does in the visual arts. 相似文献
216.
Item-specific congruency effects in nonverbal auditory Stroop 总被引:1,自引:0,他引:1
In the current study, participants judged as 'low' or 'high' either the location or the frequency of a single tone presented in one of two locations at one of two frequencies. The classification associated with the irrelevant feature could be either congruent or incongruent with the required response. The results of Experiment 1 revealed that responses were made more slowly on incongruent than on congruent trials, regardless of whether participants judged sounds according to their location or their pitch. In Experiment 2, we manipulated the probability that the classification associated with the irrelevant acoustic feature was consistent with the classification associated with the task-relevant dimension. In this experiment responses were made more quickly on congruent trials when the response associated with the irrelevant feature was likely to be consistent with the required response, and on incongruent trials when the response associated with the irrelevant feature was likely to be inconsistent with the required response. 相似文献
217.
Thomas D Parsons Todd Bowerly J Galen Buckwalter Albert A Rizzo 《Child neuropsychology》2007,13(4):363-381
In this initial pilot study, a controlled clinical comparison was made of attention perforance in children with attention deficit-hyperactivity disorder (ADHD) in a virtual reality (VR) classroom. Ten boys diagnosed with ADHD and ten normal control boys participated in the study. Groups did not significantly differ in mean age, grade level, ethnicity, or handedness. No participants reported simulator sickness following VR exposure. Children with ADHD exhibited more omission errors, commission errors, and overall body movement than normal control children in the VR classroom. Children with ADHD were more impacted by distraction in the VR classroom. VR classroom measures were correlated with traditional ADHD assessment tools and the flatscreen CPT. Of note, the small sample size incorporated in each group and higher WISC-III scores of normal controls might have some bearing on the overall interpretation of results. These data suggested that the Virtual Classroom had good potential for controlled performance assessment within an ecologically valid environment and appeared to parse out significant effects due to the presence of distraction stimuli. 相似文献
218.
Environments That Make Us Smart: Ecological Rationality 总被引:2,自引:0,他引:2
ABSTRACT— Traditional views of rationality posit general-purpose decision mechanisms based on logic or optimization. The study of ecological rationality focuses on uncovering the "adaptive toolbox" of domain-specific simple heuristics that real, computationally bounded minds employ, and explaining how these heuristics produce accurate decisions by exploiting the structures of information in the environments in which they are applied. Knowing when and how people use particular heuristics can facilitate the shaping of environments to engender better decisions. 相似文献
219.
Newcomer adjustment during organizational socialization: a meta-analytic review of antecedents, outcomes, and methods 总被引:2,自引:0,他引:2
Bauer TN Bodner T Erdogan B Truxillo DM Tucker JS 《The Journal of applied psychology》2007,92(3):707-721
The authors tested a model of antecedents and outcomes of newcomer adjustment using 70 unique samples of newcomers with meta-analytic and path modeling techniques. Specifically, they proposed and tested a model in which adjustment (role clarity, self-efficacy, and social acceptance) mediated the effects of organizational socialization tactics and information seeking on socialization outcomes (job satisfaction, organizational commitment, job performance, intentions to remain, and turnover). The results generally supported this model. In addition, the authors examined the moderating effects of methodology on these relationships by coding for 3 methodological issues: data collection type (longitudinal vs. cross-sectional), sample characteristics (school-to-work vs. work-to-work transitions), and measurement of the antecedents (facet vs. composite measurement). Discussion focuses on the implications of the findings and suggestions for future research. 相似文献
220.
Previously we reported a three-factor structure for hallucinations accompanying sleep paralysis (SP). These earlier analyses were, however, based on retrospective accounts. In a prospective study, 383 individuals reported individual episodes online providing further evidence for the three-factor structure as well as clearer conceptually meaningful relations among factors than retrospective studies. In addition, reports of individual episodes permitted a more fine-grained analysis of the internal structure of factors to assess predictions based on the hypothesis that a sensed or felt presence (FP) is a core experience affecting other SP hallucinations. Results were generally consistent with this hypothesis. In particular, associations among, and temporal stability of, sensory hallucinations were largely explained by their common association with FP. The findings are consistent with REM initiation of a threat activated vigilance system with pervasive effects on the SP experience and suggest a potential model for the thematic organization of nightmares and dreams more generally. 相似文献