Modeling feature perception in brief displays with evidence for positive interdependencies

Recent studies have begun to test certain fundamental assumptions underlying popular models of feature perception. This research is continued here. It was discovered that every basic assumption that was open to test in the present study was disconfirmed. However, several new characteristics of line and curve feature perception were discovered: (1) Feature perception sensitivity was inversely related to the number of features present in a stimulus pattern, and the decision criteria for reporting a feature decreased with the number of features contained in a pattern; (2) the decrements in sensitivity reported in (1) were greater for features lying inside a pattern than for those on the exterior; and (3) feature perception sensitivity actually improved if another feature was known to be correctly perceived during the same trial. Likewise, feature sensitivity decreased if another feature was missed on any trial. At the present time, a system that first extracts global and then local (more detailed) featural information provides a basis that qualitatively accounts for our findings and is also compatible with several other studies in the literature.     

Social factors influence solo and rat dyads exploration of an unfamiliar open field

Animal Cognition - Exploring new and unfamiliar environments is critical for survival, providing information on food, shelter, mates, and sources of danger. The open field paradigm is commonly used...     

毛泽东与毛泽东思想的宣传

人们对毛泽东思想的学习、宣传与毛泽东本人有密切关系。在民主革命时期,毛泽东对毛泽东思想宣传有发起作用。1950年以后,从大规模普及毛泽东思想到“文化大革命”期间大力宣传毛泽东思想,都与毛泽东努力捍卫自己的思想使之在实践中不受干扰分不开。只有正确说明毛泽东怎样看待人们对自己思想的宣传和学习,才能真正完整叙述毛泽东思想及对其宣传的历史。     

大学新生交流恐惧与自我概念的关系

对555名大学新生进行研究,探讨了大学新生的交流恐惧与自我概念的关系。结果表明:1大学新生的交流恐惧在性别上有显著差异;2自我概念与交流恐惧存在较高的负相关;3个人自我、身体自我、现实自我对大学新生交流恐惧具有显著预测作用。     

从个体主义到文化主义--心理学研究范式的转向与整合

西方心理学存在两种不同的研究范式,即个体主义和文化主义。文章拟以库恩的“范式”为标准,阐述西方心理学个体主义范式到文化主义范式的演变,剖析二者的基本观点及其优势和局限。在此基础上提出两者整合的构思。     

Effects of retention intervals on the magnitude of optokinetic rotation-induced taste aversions.

This study investigated the effects of different retention intervals on the magnitude of optokinetic rotation-induced conditioned taste aversions in humans. Two experiments were conducted. In Exp. 1, 20 subjects were divided into two groups, a CS-UCS group in which drinking soybean milk was paired with optokinetic rotation-induced gastric illness and a CS-Only group in which drinking soybean milk was not paired with optokinetic rotation. Analysis indicated that two days after pairing soybean milk drinking with optokinetic rotation, the subjects in the CS-UCS group had significantly reduced palatability ratings of soybean milk and lower consumption of soybean milk than those in the CS-Only group. In Exp. 2, 40 subjects were divided into four CS-UCS groups with 1-day, 3-day, 5 day, and 10-day retention intervals between the session of pairing soybean milk with optokinetic rotation and the session of retasting soybean milk. Analysis yielded no significant differences among four groups on palatability of soybean milk and consumption of soybean milk in the retasting session. It is concluded that optokinetic rotation is an effective unconditioned stimulus for conditioned taste aversions formation and that the aversion has a retention period of at least 10 days.     

Association of polymorphisms in BDNF, MTHFR, and genes involved in the dopaminergic pathway with memory in a healthy Chinese population

The contribution of genetic factors to the memory is widely acknowledged. Research suggests that these factors include genes involved in the dopaminergic pathway, as well as the genes for brain-derived neurotrophic factor (BDNF) and methylenetetrahydrofolate reductase (MTHFR). The activity of the products of these genes is affected by single nucleotide polymorphisms (SNPs) within the genes. This study investigates the association between memory and SNPs in genes involved in the dopaminergic pathway, as well as in the BDNF and MTHFR genes, in a sample of healthy individuals. The sample includes 134 Taiwanese undergraduate volunteers of similar cognitive ability. The Chinese versions of the Wechsler Memory Scale (WMS-III) and Wechsler Adult Intelligence Scale (WAIS-III) were employed. Our findings indicate that the BDNF Met66Val polymorphism and dopamine receptor D3 (DRD3) Ser9Gly polymorphism are associated significantly with long-term auditory memory. Further analysis detects no significant associations in the other polymorphisms and indices. Future replicated studies with larger sample sizes, and studies that consider different ethnic groups, are encouraged.     

基于概念辨析的类比推理研究的新视角

该研究从概念的辨析上着手,不仅可以在相似的多个概念上理清各自的异同,更重要的是分析得出,作为科学发现和创造性思维的核心———类比推理(狭义类比推理),它有着不同于一般思维活动中的类比推理(广义类比推理)的特点。在此基础之上,才能更好地揭示其发生的规律,以利于更进一步的实证研究。     

当代农民工感知社会支持、自尊和主观幸福感的关系

本研究以600名农民工为被试,采用自编的农民工感知社会支持情景问卷以及修订的自尊量表、农民工主观幸福感问卷,以探讨农民工感知社会支持、自尊与主观幸福感的关系,并考查农民工自尊在其感知社会支持与主观幸福感之间的中介作用。结果表明：（1）高自尊水平农民工的主观幸福感及其各维度、感知社会支持都极其显著地高于低自尊农民工;（2）自尊水平与主观幸福感及各维度、感知社会支持水平之间存在极其显著的正相关关系;（3）感知社会支持、自尊与主观幸福感显著两两正相关;（4）自尊在感知社会支持基础上对主观幸福感及两个维度回归效应显著,为二者之间重要的中介变量。     

认知与动机因素对品牌信息处理的影响

品牌,是一个名称、术语、标志、符号或图形,或这些元素的组合,被用来象征一个或一组销售者提供的产品及服务,以区别于竞争者的产品及服务。它通过消费者的相关信息处理的过程影响消费行为。认知因素对与品牌相关信息处理的影响,一直以来是相关研究的主流。近年,动机因素,由于它对信息处理的控制与引导作用,开始受到越来越多研究者的重视。为此,作者从社会认知的角度,分别以认知、动机因素的影响为着眼点,介绍品牌相关研究十年来的进展与成果,并在此基础上对未来研究的方向进行了探讨