学龄前儿童关于图画作者意图的认知发展

通过两可形状图、两可动作图和局限视野图三个实验,考察了3-6岁儿童对图画作者意图与其作品问关系的认知发展.结果表明:3-6岁儿童对图画作者意图的理解能力随年龄增长逐渐提高;儿童的知觉经验、社会经验以及图画作品的知觉信息完整性均影响儿童对图画作者意图的认知.     

To buy or to sell: cultural differences in stock market decisions based on price trends

Four studies compared the stock market decisions of Canadians and Chinese. In two studies using simple stock market trends, compared with Chinese, Canadians were more willing to sell and less willing to buy falling stock. But when the stock price was rising, the opposite occurred: Canadians were more willing to buy and less willing to sell. A third study showed that for complex stock price trends, Canadians were strongly influenced by the most recent price trends: they tended to predict that recent trends would continue and made selling decisions without considering the rest of the trend patterns; whereas the Chinese made reversal predictions for the dominant trends and made decisions that took both recent and early trends into consideration. Study 4 replicated the finding with experienced individual investors. These findings are consistent with the previous literature on different lay theories of change held by Chinese and North Americans. Copyright © 2008 John Wiley & Sons, Ltd.     

类别成员跨维度特征关系对类别学习的影响

探讨类别成员具有多维度相同特征与多维度匹配特征条件下对人们类别学习的影响。被试来自华南师范大学一年级本科生,要求他们学习不同特征结构的类别材料,然后进行测试,以学习阶段的单元数与错误率、测试阶段的反应时与错误率为指标。共包括3个实验,实验1探讨了类别成员具有双维度相同特征、双维度匹配特征与非匹配特征条件下进行类别学习的成绩。实验2探讨类别成员在空间位置分离的两个维度上具有相同特征对类别学习的影响。实验3进一步探讨类别间成员具有双维度相同特征对类别学习的影响。结果表明：（1）类别成员具有双维度相同特征时,人们在归类学习中会将这两个维度看成是一个维度,从而促进类别学习;（2）类别成员具有双维度匹配特征,或者在两个不相邻维度具有相同特征时,对于类别学习没有起到这种特定的促进作用;（3）如果类别间成员具有双维度相同特征,则对类别学习产生消极影响。研究结果表明,在类别学习过程中,特征相似性状况对维度的确立也会产生影响。     

从认知神经的角度看内隐记忆和外显记忆的分离

当前的一些理论观点认为,内隐记忆和外显记忆依赖于两种不同的记忆系统,它们与大脑的不同区域相联系。该文通过回顾以往相关研究,从神经心理学及神经成像两方面对两种记忆系统的分离现象进行概述：在神经心理学领域发现的证据表明内隐记忆在神经解剖上与外显记忆是分离的;使用fMRI和PET技术,研究者观察到与内隐记忆有关的枕颞区及左下前额区中衰减的神经活动,以及与外显记忆有关的内侧颞区、前额皮层和后内侧顶皮层中增强的活动;使用ERP技术,研究也发现了两种记忆神经系统在时空上的不同特征     

2~6岁儿童心迷走紧张的发展

考察2岁、4岁和6岁3个组共104名有效被试,在基线状态下的基线迷走紧张以及与年龄相符的中等压力任务下的迷走抑制的发展。结果发现,基线迷走紧张与迷走抑制有不同的发展模式：4岁组、6岁组儿童的基线迷走紧张显著地高于2岁组,而4岁组与6岁组之间没有显著差异,基线心跳周期随年龄的增长而相应增长;迷走抑制没有年龄差异,6岁组的基线对任务的心跳周期变化显著地大于2岁组的心跳周期变化     

国外环境心理学研究的新进展

人口过度增长和人类过度消费导致严重的环境危机,直接影响全球可持续发展。环境心理学是20世纪70年代以来在西方社会逐步兴起的一门新学科。当前,环境心理学家应更多与环境政策制定者和政府官员接触和对话,促进正确环境政策的决策和形成。同时环境心理学家应在人的环境知觉、环境压力和生活质量;环境心理学研究中的认知、动机和社会因素;可持续发展行为、生活方式和组织文化等方面加强研究与合作。.     

内隐学习与外显学习的相互关系

对内隐与外显学习过程的相互作用进行了探讨。被试为上海高二学生 10 0人 ,实验通过限定状态语法和双条件语法两种材料的会聚操作对 5种实验条件进行了比较。研究结果表明 :(1)内隐学习具有很强的抽象性 ,本研究首次对此给予了高度评价 ;(2 )内隐与外显学习存在相互作用 ,在学习过程中 ,时而互相促进 ,时而互相冲突 ,时而内隐学习贡献大 ,时而外显学习贡献大 ,本研究探明了内隐学习与外显学习的贡献谁大谁小 ,视学习材料的难度而定。实验启示 ,在人类的学习和生活中 ,内隐学习及其与外显学习的相互作用起着不可估量的作用 !     

Retrieval of concrete words involves more contextual information than abstract words: multiple components for the concreteness effect

The current study used the directed forgetting paradigm in implicit and explicit memory to investigate the concreteness effect. Event-related potentials (ERPs) were recorded to explore the neural basis of this phenomenon. The behavioral results showed a clear concreteness effect in both implicit and explicit memory tests; participants responded significantly faster to concrete words than to abstract words. The ERP results revealed a concreteness effect (N400) in both the encoding and retrieval phases. In addition, behavioral and ERP results showed an interaction between word concreteness and memory instruction (to-be-forgotten vs. to-be-remembered) in the late epoch of the explicit retrieval phase, revealing a significant concreteness effect only under the to-be-remembered instruction condition. This concreteness effect was realized as an increased P600-like component in response to concrete words relative to abstract words, likely reflecting retrieval of contextual details. The time course of the concreteness effect suggests advantages of concrete words over abstract words due to greater contextual information.     

Unconscious structural knowledge of tonal symmetry: Tang poetry redefines limits of implicit learning

The study aims to help characterize the sort of structures about which people can acquire unconscious knowledge. It is already well established that people can implicitly learn n-grams (chunks) and also repetition patterns. We explore the acquisition of unconscious structural knowledge of symmetry. Chinese Tang poetry uses a specific sort of mirror symmetry, an inversion rule with respect to the tones of characters in successive lines of verse. We show, using artificial poetry to control both n-gram structure and repetition patterns, that people can implicitly learn to discriminate inversions from non-inversions, presenting a challenge to existing models of implicit learning.     

Modeling Not-Reached Items in Timed Tests: A Response Time Censoring Approach

Psychometrika - Time limits are imposed on many computer-based assessments, and it is common to observe examinees who run out of time, resulting in missingness due to not-reached items. The present...