对交替呈现的立体图对的双眼立体视觉的探讨

本实验用APPLE Ⅱ微机控制的同视机,选用医用三级检查图片中的彩色和黑白两种立体图对,对30名被试进行实验。结果表明:(1)在同视机条件下,当双眼图象交替闪烁相位的交替频率平均在7Hz以上时,双眼立体视觉形成。(2)双眼刺激交替呈现时,彩色图对的立体感闪烁融合阈值约为33Hz,黑白图对的立体感闪烁融合阈值约为25Hz,两者差异十分显著(P<0.0001)。     

理解模糊概念的动态特征

本文探讨了不同场合下人脑理解模糊概念(量词、修饰词)的动态特点,并且考察了不同赋值区间(论域)、比较级的基数、上下关联(Context)等变量对理解给定的模糊概念的影响,特别考察了上述问题上的年龄差异。     

特殊青少年感觉寻求特质的研究

本文对优秀少年、少年犯和普通少年进行了感觉寻求特质、认知复杂性、棒框测验和心率的研究。旨在检验和证实F.Farley的有关理论:高感觉寻求者由于寻求刺激方式的不同而具有两种不同的行为倾向;并深入探讨不同少年的认知和生理特点。实验结果表明,少年犯和优秀少年比普通少年具有更高的感觉寻求倾向。优秀少年和少年犯寻求刺激的方面是不同的。优秀少年的认知复杂性分数较高,并倾向于场独立性特征,对新异刺激倾向于朝向反射特点;少年犯则具有较低的认知复杂性和场依存性特征。     

人格类型对应激反应影响的实验研究(实验室应激源部分)

本研究以EPQ为依据选择高神经质和低神经质2组共24名被试,以有时间压力的心算和复杂辨别反应操作为紧张性刺激,在进行作业的同时记录被试的呼吸频率、呼吸流量、脉率、指端血管容积和皮肤电反应等五项生理指标,并检测尿内儿茶酚胺分泌量。通过对人格类型、作业成绩、作业难度主观评价、紧张性情绪体验,以及对尿内儿茶酚胺分泌量和五项生理指标的综合分析,以研究人格类型对应激反应影响的程度和途径。结果表明,在两组被试作业成绩无显著差异的情况下,在对作业难度主观评价和情绪体验的程度上,高神经质组高于低神经质组。在平静状态下,高神经质组去甲肾上腺素分泌量高于低神经质组;应激状态下,高神经质组的儿茶酚胺反应强度和变化幅度均明显高于低神经质组。高神经质组的五项生理指标均比低神经质组有较大的变化幅度。儿茶酚胺分泌量与脉率有明显的正相关。另外,通过与自然应激源部分的实验结果比较,发现实验室与现场应激的效果基本一致。     

Computational and reasoning abilities in arithmetic: Cross-generational change in China and the United States

A Chinese advantage over Americans was found for economically relevant computational and reasoning abilities in arithmetic for groups of 6th- and 12th-grade students matched or equated on general intelligence. No cross-national difference for computational or reasoning abilities was found for samples of older (60- to 80-year-old) Chinese and American adults equated on general intelligence. The pattern of change in arithmetical competencies across cohorts suggests that the Chinese advantage in 6th and 12th grade is due to a cross-generational decline in competencies in the United States and a cross-generational improvement in China.     

Form symbolism, analogy, and metaphor

Simple forms, such as a square and a circle, can be symbolic; for example, a square can be deemed to behard and a circle to besoft. The relation between form symbolism and the comprehension of metaphors and analogies was studied in three experiments. Subjects were asked to rate matches between terms such assoft andhard andcircle andsquare as symbols (Experiment 1), metaphors (Experiment 2), and analogies (Experiment 3). The results show that a highly rated symbolic relation could be a poorly rated metaphorical relation. Ratings of analogies were similar to ratings of symbols. We argue that apt metaphors, analogies, and symbolic forms claim that the vehicle and the topic of the comparisons have common features, but that metaphoric representation entails more common features than does either symbolism or analogy, because metaphor requires that the vehicle be an especially apt example of a superordinate class. Thus, metaphor is a particularly strong claim about common features shared by the topic and the vehicle.     

不确定性问题解决策略研究及存在的问题分析

通过对不确定性问题解决及认知策略方面颇有代表性的研究的回顾、分析了该领域的研究特点、现状及存在的问题。     

小学儿童合取概念的形成及其与元认知的关系

采用个别访谈与问卷相结合的方法．研究了小学四、五、六年级共48名儿童合取概念的形成及其元认知的发展。结果表明．小学儿童形成合取概念的能力发展既具有渐进性,又有不均衡性;其元认知知识水平和元认知监控能力的发展均呈现出稳中有变的趋势;各年级的元认知能力与形成合取概念的步数之间均存在非常显著的相关。     

Models and theories I: The semantic view revisited

The paper, as Part I of a two‐part series, argues for a hybrid formulation of the semantic view of scientific theories. For stage‐setting, it first reviews the elements of the model theory in mathematical logic (on whose foundation the semantic view rests), the syntactic and the semantic view, and the different notions of models used in the practice of science. The paper then argues for an integration of the notions into the semantic view, and thereby offers a hybrid semantic view, which at once secures the view's logical foundations and enhances its applicability. The dilemma of either losing touch with the practice of science or yielding up the benefits of the model theory is thus avoided.     

Adjusting Social Inferences in Familiar and Unfamiliar Domains: The Generality of Response to Situational Pragmatics

Two experiments investigated the influence of situational pragmatics on the selective use of specific instances and generalized knowledge structures to make social inferences. In Experiment 1, social inferences were made in an unfamiliar domain similar in structure to a typical situation of social greetings and address, but devoid of useful cues to social schemas. Participants were told that either one or another of the features of the situation was more pragmatically important for deriving inferences about appropriate social behaviour; consistent with predictions from a computational model of analogical mapping (ACME), they made reliable inferences based on analogies to specific instances, with the situational importance of relations guiding the selection of the optimal analogue. In Experiment 2, social inferences were examined in the more familiar domain of predicting social behavior between low and high status persons and between members of an ingroup and an outgroup in Japan. The availability of specific examples was varied, as was the perceived importance of status and group membership. The situation was isomorphic to that in the first experiment, except for the availability of generalized knowledge structures to guide inferences. Participants made relatively veridical inferences that were sensitive to variations in the pragmatic importance of dimensions. Provision of specific analogues had little impact on inferences, suggesting that participants were relying instead on more general and cross-culturally applicable knowledge about adjusting social relations according to situational pragmatics.