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131.
关于短时记忆中范畴群集的定位实验 总被引:1,自引:0,他引:1
本研究通过对短时记忆的编码或提取阶段进行注意分散来探讨范畴群集的定位问题。以大学生为被试,应用双作业进行分散注意条件下的记忆实验,并与集中注意条件下的记忆实验进行比较。识记材料均为双范畴词表。结果表现无论在编码还是提取阶段分散注意,都导致范畴群集程度的降低。实验结果不支持认为范畴群集的组织过程仅仅发生在记忆信息加工的某一个阶段的看法,而有利于双重定位观点,即认为范畴群集既与编码阶段有关,也与提取阶段有关。 相似文献
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Ling-Yi Zhou 《Sex roles》2006,55(1-2):95-110
American and Chinese college students’ anticipations showed no gender differences in their desires for postgraduate education, marriage, and parental status. Stereotypical gender differences emerged in both countries when caregiving roles were considered: Both men and women rated it more likely for women than for men to quit their jobs to be caregivers. Overall, male college students, the Chinese men in particular, felt less comfortable than did women in situations where their spouses were superior in earnings, achievements, and social status. More Chinese than American students planned to enter marriage and parenthood at a later age, and the Chinese students rated the importance of family lower. These findings are discussed in light of the general sociocultural model and the role distribution theory.This study was supported partially by a summer mini-grant issued by the University of St. Francis in 2000. 相似文献
135.
Following pretraining with everyday objects, 10 children aged from 1 to 4 years were given common vocal tact training with a set of three pairs of arbitrary stimuli of differing shapes; Set 1. Nine children learned to tact one stimulus as "zog" and the other as "vek" in each pair, and all passed subsequent pairwise tests for the corresponding listener behavior to each listener stimulus (i.e., /zog/ and /vek/, respectively). The children were next trained to clap to one stimulus of Pair 1 and wave to the other, and all then showed name-consistent transfer of these behaviors to the stimuli of Pair 2 and Pair 3. Seven children also were given a test of listener responding to experimenter-modeled clap and wave gestures, respectively, which they all passed. Four of the children next participated in a category match-to-sample test for the Set 1 stimuli; all 4 passed. For each pair of two additional six-stimuli sets, Set 2 and Set 3, 3 children were trained to wave to one stimulus and to clap to the other. For each set, all 3 children showed perfect transfer of the vocal tacts trained to Set 1, and of listener behavior both to the auditory stimuli /zog/ and /vek/ and to experimenter-modeled clap and wave gestures. They also sorted the stimuli perfectly in category match-to-sample tests for Set 2, Sets 1 and 2 combined, Set 3, and Sets 1, 2, and 3 combined. The results show that even in very young children, naming is a powerful means of generating new category relations among as many as 18 arbitrary stimuli. 相似文献
136.
The study sought to explore management's responsibility in accident causation as perceived by Ghanaian and Finnish industrial workers. It was anticipated that the Ghanaian industrial workers would externalize accident causality more than their Finnish counterparts, and would assign only marginal responsibility to the management for industrial accidents. The predicted difference was based on the premise that the difference in these two cultures on the power-distance cultural dimensions would have an impact on their responsibility assignments. The results confirmed our expectation. 相似文献
137.
Abstract: Competing predictions about the effects of category size on judgments of category variability were examined in two studies involving the presentation of exemplars of two artificial social groups. In contrast to predictions of some exemplar-based models, Experiment 1 demonstrated that a numerically smaller group was perceived to be more variable than a larger group on the standard deviation measure of frequency distribution estimates. The result was interpreted to be an effect of differential information load. Experiment 2 revealed that variability judgments were influenced by prior expectations about the central tendencies as well as by practice in retrieving information about category exemplars. When frequency distribution estimates were made subsequent to abstract tasks, expectations about the numerical majority reduced perceived variability, while this influence was mitigated when memory measures preceded the frequency estimates. 相似文献
138.
Perceptual classification may be based either on the physical features of target and background items or on the semantic attributes of the presented items. In this paper we used enumeration tasks to study the role of semantic features in a categorial classification task. This means that subjects were asked to count the number of target words in a display belonging to one semantic category among a number of background items of other categories. Our goal was to study the decision logic in category search by manipulating target background conditions and the semantic distance between target and background classes. In the first experiment we found that the larger the semantic distance between targets and background words, the easier it was to find the targets. In the second experiment we found a "pop-out" effect, in which subjects could use and benefit from a single distinctive semantic feature, "part-likeness", in categorial classification. The results of the two experiments imply that the categorization decision logic is basically the same in physical and semantic perceptual classification. 相似文献
139.
Hua-Hua Chang 《Psychometrika》1996,61(3):445-463
Chang and Stout (1993) presented a derivation of the asymptotic posterior normality of the latent trait given examinee responses under nonrestrictive nonparametric assumptions for dichotomous IRT models. This paper presents an extention of their results to polytomous IRT models in a fairly straightforward manner. In addition, a global information function is defined, and the relationship between the global information function and the currently used information functions is discussed. An information index that combines both the global and local information is proposed for adaptive testing applications.This research was partially supported by Educational Testing Service Allocation Project No. 79424. The author wishes to thank Charles Davis, Xuming He, Frank Jenkins, Spence Swinton, William Stout, Ming-Mai Wang, and Zhiliang Ying for their helpful comments and discussions. The author particularly wishes to thank the Editor, Shizuhiko Nishisato, the Associate Editor, and three anonymous reviewers for their thoroughness and thoughtful suggestions. 相似文献
140.
以既可用作名词,又可用作动词的汉语双音节兼类词为材料,采用移动窗口范式,考察了汉语句子中名词倾向性高和低两类兼类词句法分析的详细历程。结果发现,两类兼类词与各自的控制词之间,均未出现阅读时间上的显著差异,因此并不支持延迟模型所提出的兼类词句法角色延迟指派的观点。实验还发现,名词倾向性高的兼类词引起了更大的加工困难。此外,即便是名词倾向性低的兼类词,被试也仍为其指派名词的句法角色。花园路径模型和制约满意理论均不能单独和完整解释上述发现。文章指出,实验结果支持一种既不同于花园路径模型,又不同于制约满意理论的权变的理论。阅读中遇到兼类词时,读者能立即为其指派句法角色。这种指派过程既可以利用概率制约信息,也可以在句法分析原则指导下进行。句法分析原则是否起作用,取决于概率制约信息的制约强度 相似文献