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141.
Neuropsychological studies of the frontal lobes 总被引:18,自引:0,他引:18
142.
Computer-averaged auditory-evoked responses were recorded from the scalp of seven human Sa in order to study the effects of both low-signal levels and different performance criteria upon specific components of the waveform. Noise bursts of ?2, 0. +2. or +6 dB seDl8tion level (SL) were presented contingent upon the S’s correct bisection of a temporal interval as the degree of accuracy required from him was systematically varied. Analyses of variance indicated that a positive peak in the waveform at a latency of approximately 300 msec increased in amplitude as the stringency of the performance criterion increased but showed no change as signal strength varied. The negative peak at approximately 125 msec latency increased with increasing signal strength but remained constant as the stringency of the performance criterion was varied. 相似文献
143.
Based on the assumption that an individual's behavioral intentions mediate the relationship between his attitudes and behaviors, an attempt was made to obtain a direct assessment of (a) subjects' intentions with regard to a series of acts varying in behavioral thresholds and (b) the perceived instrumentality of these acts for achieving one's goals After the reliability of the Intentions Scale was established, it was combined multiplicatively with ratings of perceived effectiveness to form a combined Action Potential Index (AP) The index resulted in significantly greater predictive validity than a conventional attitude assessment instrument. A second study was undertaken to determine the consistency of the AP-index across issues. The high correlations obtained for the AP-index across three issues suggested the operation of an “activism” personality dimension 相似文献
144.
The theoretical basis of systematic desensitization is reciprocal inhibition in which an alternative, competitive response to anxiety is conditioned to arousal-producing, phobic stimuli. Abbreviated training in progressive relaxation is believed to serve as a competitive response to anxiety by decreasing autonomic nervous system activity. However, physiologic studies of progressive relaxation have not substantiated that its practice is associated with such decreased autonomic activity. Consequently, the use of progressive relaxation has been a confounding factor in the determination of the function of reciprocal inhibition in systematic desensitization. To confirm and refine the theoretical constructs of reciprocal inhibition, it is necessary to test the effects of a response which is competitive to the anxiety response. Such a response may be the relaxation response which is characterized by physiologic changes consistent with decreased autonomic nervous system activity. Derived from meditational practices, techniques which ehcit the relaxation response incorporate the element of focused attention which has been implicated as a critical factor in systematic desensitization. Thus, the use of the relaxation response should be a more appropriate method than progressive relaxation if the therapeutic usefulness of systematic desensitization is indeed due to reciprocal inhibition. 相似文献
145.
Gerald F. Smith P. George Benson Shawn P. Curley 《Organizational behavior and human decision processes》1991,48(2)
This paper presents a cognitive analysis of subjective probability judgments and proposes that these are assessments of belief-processing activities. The analysis is motivated by an investigation of the concepts of belief, knowledge, and uncertainty. Judgment and reasoning are differentiated, Toulmin's (1958) theory of argument being used to explicate the latter. The paper discusses a belief-processing model in which reasoning is used to translate data into conclusions, while judgmental processes qualify those conclusions with degrees of belief. The model sheds light on traditional interpretations of probability and suggests that different characteristics of belief—likelihood and support—are addressed by different representational systems. In concluding, the paper identifies new lines of research implied by its analysis. 相似文献
146.
Various recently developed brain imaging techniques used to assist in the diagnosis of dementia are reviewed. The methods reviewed are x-ray computed tomography scan imaging, magnetic resonance imaging, positron emission tomography, and the older techniques of pneumoencephalography and radioisotope cisternography. It was concluded that while these techniques often offer excellent diagnostic information, none of them provides a definitive characteristic image for Alzheimer's disease. 相似文献
147.
Facial images can be enhanced by application of an algorithm--the caricature algorithm--that systematically manipulates their distinctiveness (Benson & Perrett, 1991c; Brennan, 1985). In this study, we first produced a composite facial image from natural images of the six facial expressions of fear, sadness, surprise, happiness, disgust, and anger shown on a number of different individual faces (Ekman & Friesen, 1975). We then caricatured the composite images with respect to a neutral (resting) expression. Experiment 1 showed that rated strength of the target expression was directly related to the degree of enhancement for all the expressions. Experiment 2, which used a free rating procedure, found that, although caricature enhanced the strength of the target expression (more extreme ratings), it did not necessarily enhance its purity, inasmuch as the attributes of nontarget expressions were also enhanced. Naming of prototypes, of original exemplar images, and of caricatures was explored in Experiment 3 and followed the pattern suggested by the free rating conditions of Experiment 2, with no overall naming advantage to caricatures under these conditions. Overall, the experiments suggested that computational methods of compositing and caricature can be usefully applied to facial images of expression. Their utility in enhancing the distinctiveness of the expression depends on the purity of expression in the source image. 相似文献
148.
Benson Schaeffer Assistant Professor of Psychology
Alice Harris
Research AssociateMarvin Greenbaum
Associate Professor of Psychology 《Journal of School Psychology》1969,7(4):70-74Socially oriented underachievers are students who work for the rewards of social interaction rather than for those of academic achievement. A case report is presented which outlines the treatment of a socially oriented underachiever. The successful treatment employed behavior modification techniques and consisted, essentially, of rewarding the entire class for academic improvement shown by the underachiever. 相似文献
149.
150.
Steele RG Richards MM Benson ER Corbin SR Cushing CC 《Journal of personality assessment》2008,90(3):286-291
Using multiple indicators (self-report, parent report, school grades, and disciplinary referrals), we compared the psychosocial functioning of children across Weinberger's (1990) and Weinberger, Schwartz, and Davidson's (1979) repressive adaptive style (RAS) groups. Participants included 134 children ages 10 to 13 years that were recruited from public schools and 117 of their caregivers. Relative to nonrepressors, we hypothesized repressors to evidence lower levels of self-reported distress but higher parent-reported distress on the Behavior Assessment System for Children (BASC; Reynolds & Kamphaus, 1992). Summary scores from the BASC self-report differed significantly between repressors and nonrepressors in the expected directions. No significant group differences in parent-reported distress or school functioning emerged. Consistent with Phipps (2005), results question the predominant assumption that the RAS is associated with risk of psychosocial difficulties in children. 相似文献