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11.
Randolph W. Parks Daniel S. Levine Debra L. Long David J. Crockett Irene E. Dalton Herbert Weingartner Paul Fedio Kerry L. Coburn Gil Siler Jane R. Matthews Robert E. Becker 《Neuropsychology review》1992,3(2):213-233
Neural networks can be used as a tool in the explanation of neuropsychological data. Using the Hebbian Learning Rule and other such principles as competition and modifiable interlevel feedback, researchers have successfully modeled a widely used neuropsychological test, the Wisconsin Card Sorting Test. One of these models is reviewed here and extended to a qualitative analysis of how verbal fluency might be modeled, which demonstrates the importance of accounting for the attentional components of both tests. Difficulties remain in programming sequential cognitive processes within a parallel distributed processing (PDP) framework and integrating exceedingly complex neuropsychological tests such as Proverbs. PDP neural network methodology offers neuropsychologists co-validation procedures within narrowly defined areas of reliability and validity. 相似文献
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Base-rate effects in category learning: a comparison of parallel network and memory storage-retrieval models 总被引:1,自引:0,他引:1
W K Estes J A Campbell N Hatsopoulos J B Hurwitz 《Journal of experimental psychology. Learning, memory, and cognition》1989,15(4):556-571
Exemplar-memory and adaptive network models were compared in application to category learning data, with special attention to base rate effects on learning and transfer performance. Subjects classified symptom charts of hypothetical patients into disease categories, with informative feedback on learning trials and with the feedback either given or withheld on test trials that followed each fourth of the learning series. The network model proved notably accurate and uniformly superior to the exemplar model in accounting for the detailed course of learning; both the parallel, interactive aspect of the network model and its particular learning algorithm contribute to this superiority. During learning, subjects' performance reflected both category base rates and feature (symptom) probabilities in a nearly optimal manner, a result predicted by both models, though more accurately by the network model. However, under some test conditions, the data showed substantial base-rate neglect, in agreement with Gluck and Bower (1988b). 相似文献
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Jane Pilcher Sara Delamont Gillian Powell Teresa Rees 《British Journal of Guidance & Counselling》1989,17(1):59-67
The views that women and girls hold about themselves contribute to the segregation of women in the labour market. Women's Training Roadshows are an example of initiatives aimed at 'cultural interruption', in that they attempt to challenge occupational stereotypes. This paper evaluates the Cardiff Women's Roadshow from the schoolgirls' perspective and discusses the implications of the findings for careers guidance at school level. 相似文献
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This paper addresses the use of the weekly written summary with patients in group psychotherapy. In an effort to stimulate group process and effect cotherapist communication, the authors instituted this group recording in an ongoing psychodynamically oriented mixed adult group. While the utilization of this device did, in fact, stimulate the group process and became an important part of the group's life, the therapists additionally saw significant effects upon their working alliance. These included increased focused dialogue upon group dynamics, more purposeful planning for group interventions, and heightened awareness of the significance of interventions in the group.Ms. Bosman-Clark is formerly Clinical Instructor, Department of Psychiatry, Baylor College of Medicine. 相似文献
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This article reports an experiment to investigate the idea that time-of-day differences in memory for text are related to
type of text processing that is carried out at different times of day. In particular, it was hypothesized that subjects tested
in the morning tend to retain more of the exact wording of the text, whereas those tested in the afternoon are more likely
to produce a meaning-based representation. The results of a recognition test showed that, in agreement with other studies,
immediate text memory is better in the morning than in the afternoon. As predicted, the subjects tested in the morning better
remembered the exact wording of the original passages. However, the idea that memory for meaning is better in the afternoon
than the morning was not supported by the data. The results suggest that subjects at both times of day produce a meaning-based
representation of the text but, in the morning, this representation is supported by good verbatim memory, enabling accurate
recall of the text at that time. 相似文献
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This research examined the creative writing of 180 elementary school children for evidence of sex difference and sex-role perceptions. Stories were analyzed for frequency of male and female characters, attributes, and roles. Writers were equally divided by sex and into three age groups—grades 1–2, 3–4, and 5–6. Results suggest that the total number of characters, roles, and attributes was equivalent. However, the distribution of male and female characters, roles, and attributes differed with male and female writers. Female writers included significantly more female characters and assigned more attributes and roles to these characters. Nevertheless, in the stories of both male and female writers, there was a predominance of male characters and assignment of attributes and roles to male characters. The findings support the development and implementation of a nonsexist curriculum. 相似文献
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