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141.
Walter F. Mckeever Kathleen M. Gill Allan D. Vandeventer 《Quarterly journal of experimental psychology (2006)》1975,27(3):363-373
Filbey and Gazzaniga (1969) found simple dot-present or -absent reports averaged 35 ms slower for the left than for the right visual field. Other data suggests that verbal processing efficiency differences between the cerebral hemispheres, rather than transcallosal transfer time alone, must be tapped to obtain half-field differences as large as 35 ms. Three experiments were conducted. The first failed to show any half-field differences in vocal RT for dot detection; the second replicated previous reports of significant right field superiority of vocal RT to letter stimuli for right handers, and also showed a substantially smaller half-field difference for left handers; the third experiment, utilizing the fixation control procedure of the second experiment, again failed to show half-field differences for the dot detection paradigm. Differences between the Filbey and Gazzaniga and present results probably reflect important procedural differences. We conclude that transcallosal transfer time for simple dot information is much smaller than assumed by Filbey and Gazzaniga and that the letter report-time task taps hemispheric asymmetries of verbal processing efficiency. 相似文献
142.
Revision and Restandardization of the Conners Teacher Rating Scale (CTRS-R): Factor Structure, Reliability, and Criterion Validity 总被引:15,自引:0,他引:15
C. Keith Conners Gill Sitarenios James D. A. Parker Jeffery N. Epstein 《Journal of abnormal child psychology》1998,26(4):279-291
The Conners Teacher Rating Scale (CTRS) is a commonly used research and clinical tool for assessing children's behavior in the classroom. The present study introduces the revised CTRS (CTRS-R) which improves on the original CTRS by (1) establishing normative data from a large, representative North American sample, (2) deriving a factor structure using advanced statistical techniques, and (3) updating the item content to reflect current conceptualizations of childhood disorders. Using confirmatory factor analysis, a six-factor structure was found which includes Hyperactivity-Impulsivity, Perfectionism, Inattention/Cognitive Problems, Social Problems, Oppositionality, and Anxious/Shy factors. The reliability of the scale, as measured by test-retest correlations and internal consistency, is generally satisfactory. Using all of the scale factors to discriminate between attention deficit hyperactivity disordered and normal children, 85 percent of children were correctly classified, supporting the validity of the scale and indicating excellent clinical utility. Similarities and differences between the original CTRS factor structure and the CTRS-R factor structure are discussed. 相似文献
143.
144.
Two discrimination test apparatuses for primates 总被引:1,自引:0,他引:1
This paper describes two test apparatuses developed to facilitate discrimination learning studies with primates. The semiautomated apparatus provides for presentation of stereometric stimulus materials through the illumination of lamps which make a one-way mirror transparent at the onset of a trial. The totally automated test system was developed to facilitate the collection of Transfer Index (TI) measurements, measurements intended to provide for equitable assessments of the learning-set capabilities of diverse primate genera. The TI test procedures and the system’s operations provide for criterional mastery (67% or 84% responses correct) of two-ehoice visual discrimination problems, consisting of projected patterns, then reversal of cues for the 10 test trials that are of particular significance in calculation of the TI scores. 相似文献
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146.
Social Psychology of Education - LGBTIQ children and adolescents experience disproportionate levels of bullying. Safe Schools, an Australian anti-bullying program, has recently been a site of... 相似文献
147.
A critical aspect of perception–action coupling is the ability to modify ongoing actions in accordance with variations in the environment. Infants’ ability to modify their gait patterns to walk down shallow and steep slopes was examined at three nested time scales. Across sessions, a microgenetic training design showed rapid improvements after the first session in infants receiving concentrated practice walking down slopes and in infants in a control group who were tested only at the beginning and end of the study. Within sessions, analyses across easy and challenging slope angles showed that infants used a ‘braking strategy’ to curb increases in walking speed across increasingly steeper slopes. Within trials, comparisons of infants’ gait modifications before and after stepping over the brink of the slopes showed that the braking strategy was planned prospectively. Findings illustrate how observing change in action provides important insights into the process of skill acquisition. 相似文献
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149.
Brant R. Burleson Lisa K. Hanasono Graham D. Bodie Amanda J. Holmstrom Jessica J. Rack Jennifer Gill Rosier Jennifer D. McCullough 《Sex roles》2009,61(3-4):265-280
We propose a comprehensive explanation for gender differences in responses to supportive communication grounded in a dual-process theory of communication outcomes. Two studies confirmed consistent gender differences in responses by US college students to supportive communication and assessed the mediating effects of an ability factor (cognitive complexity) and two motivational factors (expressive and instrumental orientations) on situation elaboration and message evaluation. Study 1 focused on everyday comforting contexts (N?=?318), whereas Study 2 focused on bereavement (N?=?103). Both studies found that cognitive complexity mediated gender differences in situation elaboration and further found that cognitive complexity and expressive orientation collectively mediated gender differences in evaluative responses to supportive messages. Theoretical and pragmatic implications of the results are discussed. 相似文献
150.
Evidence from lesion, electrophysiological, and neuroimaging studies support the hypothesis that the hippocampus and dorsal striatum process afferent inputs in such a way that each structure regulates expression of different behaviors in learning and memory. The present study sought to determine whether rats explicitly trained to perform one of two different learning strategies, spatial or response, would display disparate immediate early gene activation in hippocampus and striatum. c-Fos and Zif268 immunoreactivity (IR) was measured in both hippocampus and striatum 30 or 90 min following criterial performance on a standard plus-maze task (place learners) or a modified T-maze task (response learners). Place and response learning differentially affected c-Fos-IR in striatum but not hippocampus. Specifically, explicit response learning induced greater c-Fos-IR activation in two subregions of the dorsal striatum. This increased c-Fos-IR was dependent upon the number of trials performed prior to reaching behavioral criterion and accuracy of performance during post-testing probe trials. Quantification of Zif268-IR in both hippocampus and striatum failed to distinguish between place and response learners. The changes in c-Fos-IR occurred 30 min, but not 90 min, post-testing. The synthesis of c-Fos early in testing could reflect the recruitment of key structures in learning. Consequently, animals that were able to learn the response task efficiently displayed greater amounts of c-Fos-IR in dorsal striatum. 相似文献