性别刻板印象维护的心理机制

性别刻板印象对人们有着重要影响.反性别刻板的行为违背了人们对性别角色的期望和要求,人们为了维护自己的性别刻板印象会采用不同的策略来对反性别刻板的行为作出反应.文章介绍了认知过程中对反性别刻板信息的抗拒和行为反应中对反性别刻板行为的抵制功能模型,分析了人们维护性别刻板印象的心理机制,并对有关性别刻板印象维护的研究进行了评价和展望.     

成败情境下不同目标取向学生内在动机特点

以213名小学生为被试,设置成功和失败情境,考察三种成就目标取向学生内在动机的差异。结果发现:两种情境下,掌握目标的学生均有最高的内在动机;失败情境下,成绩接近目标学生的内在动机显著高于成绩回避目标的学生,但成功情境下,两种目标取向学生的内在动机没有显著差异;掌握目标学生在两种情境下的内在动机无显著差异;成绩接近和成绩回避目标学生在失败情境下的内在动机显著低于成功情境下的内在动机。     

去甲肾上腺素对习得性长时程突触增强的影响

在大鼠条件性饮水反应的建立和巩固过程中,在每天训练之前,通过预先与记录电极一起埋植在海马齿状回的注药管,微量注射去甲肾上腺素(NE),观察其对海马齿状回的习得性长时程突触增强的影响。结果表明:NE能增强突触效应;训练作业前注NE易化了习得性长时程突触增强的形成,但对其巩固无影响;同时相应地易化了动物条件反应的建立。提示NE参与海马齿状回的习得性长时程增强的形成。本文对其可能的作用机制进行了讨论。     

Can 9.5-month-old infants attribute to an agent a disposition to perform a particular action on objects?

The present research examined whether 9.5-month-old infants can attribute to an agent a disposition to perform a particular action on objects, and can then use this disposition to predict which of two new objects - one that can be used to perform the action and one that cannot - the agent is likely to reach for next. The infants first received familiarization trials in which they watched an agent slide either three (Experiments 1 and 3) or six (Experiment 2) different objects forward and backward on an apparatus floor. During test, the infants saw two new identical objects placed side by side: one stood inside a short frame that left little room for sliding, and the other stood inside a longer frame that left ample room for sliding. The infants who saw the agent slide six different objects attributed to her a disposition to slide objects: they expected her to select the "slidable" as opposed to the "unslidable" test object, and they looked reliably longer when she did not. In contrast, the infants who saw the agent slide only three different objects looked about equally when she selected either test object. These results add to recent evidence that infants in the first year of life can attribute dispositions to agents, and can use these dispositions to help predict agents' actions in new contexts.     

Approach‐Avoidance Motivation and the Use of Affect as Information

Individuals often rely on their affect for information. However, positive or negative affect may not be informative for individuals who are more prone to feel affect of this particular valence in general, unless they chronically monitor their internal states. A series of studies demonstrates that differences in individuals’ internal versus external focus of attention and in trait affective valence associated with their approach versus avoidance motivation determine reliance on affect as information. Specifically, our findings show that while positive affect is used as an input in product satisfaction judgments regardless of individuals’ approach versus avoidance motivation, negative affect is used only by individuals with a predominant approach motivation.     

Implicit probabilistic sequence learning is independent of explicit awareness

Studies into interactions between explicit and implicit motor sequence learning have yielded mixed results. Some of these discrepancies have been attributed to difficulties in isolating implicit learning. In the present study, the effect of explicit knowledge on implicit learning was investigated using a modified version of the Alternating Serial Response Time (ASRT) task, a probabilistic sequence learning paradigm that yields continuous and relatively pure measures of implicit learning. Results revealed that implicit learning occurred to the same extent, whether or not subjects had explicit knowledge. Some evidence, however, indicated that explicit knowledge could interfere with the expression of implicit learning early in training. In addition, there were dissociations between learning measures, in that reaction time and accuracy were differentially affected by explicit knowledge. These findings indicate that implicit sequence learning occurs independently of explicit knowledge, and help to explain previous discrepant findings.     

4～5岁儿童一一对应任务中的比例效应

一一对应和数量比较是幼儿数概念发展的两个重要方面。在本研究中．40名4岁和39名5岁的儿童分别完成了不同比例数量的一一对应任务和数量比较任务。结果表明：（1）两种实验任务下均出现比例效应．说明儿童在解决一一对应问题时,仍然用数量比较的方法来进行判断;（2）任务类型的主效应显著,一一对应任务下的正确率要显著低于数量比较任务下的正确率;（3）知觉线索更多地影响数量比较任务。     

If It's Difficult to Pronounce, It Must Be Risky

ABSTRACT— Low processing fluency fosters the impression that a stimulus is unfamiliar, which in turn results in perceptions of higher risk, independent of whether the risk is desirable or undesirable. In Studies 1 and 2, ostensible food additives were rated as more harmful when their names were difficult to pronounce than when their names were easy to pronounce; mediation analyses indicated that this effect was mediated by the perceived novelty of the substance. In Study 3, amusement-park rides were rated as more likely to make one sick (an undesirable risk) and also as more exciting and adventurous (a desirable risk) when their names were difficult to pronounce than when their names were easy to pronounce.     

脊柱结核个体化综合治疗的思考

近年来脊柱结核迅速增多,严重威胁着人类的健康.本文分析目前脊柱结核治疗中存在的问题,围绕这些问题,从脊柱结核的化疗,手术、围手术期处理、术后督导治疗方面综合思考个体化综合治疗在脊柱结核中的应用.通过这些分析和思考,以期引导我们用系统全面的观点治疗眷柱结核,并最终控制其流行.     

康德、黑尔与普遍主义

康德和黑尔都是伦理学的杰出代表人物,尽管一个是规范伦理学家,一个是元伦理学家,但是双方都把目光聚集在道德的形式主义研究上,并且着力于普遍主义的落脚点.两者在理论上存在诸多不同,却依然可以发现两者在理论上的先行后继的关系.