Long-delay taste aversion learning in an unpoisoned rat: Exposure to a poisoned rat as the unconditioned stimulus

M. J. Lavin, B. Freise, and S. Coombes (Behavioral and Neural Biology, 1980, 28, 15–33) have shown that if two rats consume a flavored solution and one is poisoned, the unpoisoned partner will also exhibit a flavor aversion during a later preference test. Experiments 1 and 2 showed that a sufficient condition for obtaining this aversion is that the poisoned partner be present with the unpoisoned rat after it has consumed the flavored solution. It is not necessary that the poisoned partner be present when the flavored solution is consumed or indeed have had any exposure to the flavored solution. Experiment 3 showed that the unpoisoned partner can exhibit a flavor aversion when there is a temporal gap of as long as 6 hr between consumption of the flavored solution and exposure to the poisoned rat.     

心理学视角下的人生目标

从心理学视角对人生目标予以研究非常重要。目前, 对此的一系列研究进展显示：在概念上, 尽管不同研究者对人生目标的认识存在差异, 但却一致同意它是一种能持续地赋予人生以方向和意义的动机性概念; 在对人生目标的测量上, 主要关注于“人生目标感”的高低程度及人生目标的内容两方面; 对人生目标功能的研究显示, 高人生目标感与更好的压力应对、健康行为及身心状态相联系, 但不同内容类型的人生目标是否存在功能差异尚需探讨; 在影响因素上, 影响人生目标感高低和人生目标内容的因素十分复杂, 大体可划分为个体因素和环境因素两类。进一步的研究需继续澄清概念、完善测量体系并系统化相关研究, 并应考虑相关文化差异问题, 以更好服务于人生目标的培育工作。     

工作场所不文明行为受害者向实施者反转的机制

梳理和归纳了导致工作场所不文明行为的受害者反转为实施者的组织事件, 包括团队层次的不作为领导行为和领导不文明行为以及个体层次的同事不文明行为。借助事件系统理论对受害者反转为实施者的认知过程进行了说明, 如果组织事件的强度足够引起受害者的控制化信息加工, 则其可能改变自己的原有行为进而实施工作场所不文明行为; 根据社会信息加工理论, 受害者的控制化信息加工可以通过三条路径实现, 即学习过程, 归因过程和道德判断过程。建议未来研究进一步探讨情绪和认知两者在不文明行为受害者角色反转中的作用, 以及工作领域之外的因素在其中的作用, 并且能够使用日记研究法进行验证; 未来研究还可以探讨工作场所不文明行为的旁观者反转为实施者的机制。     

"三资"企业劳资关系研究

改革开放以来,"三资"企业不断增长,为中国经济迅速增长做出了重要贡猷的同时,也引发了一些社会问题,主要反映在劳动者劳权的实现状况和劳资关系冲突方面.通过对三个外资企业的个案研究说明,外资企业存在着三种劳资关系模式,即冲突型劳资关系模式、谈判-契约型劳资关系模式和利益一致型的以人力资源管理为主的劳资关系模式.企业类型、投资方式、企业规模、生产要素的配置、企业文化传统以及在地政府的行为等多种因素影响外资企业劳资关系模式.     

Psychometric properties of the Cognitive Emotion Regulation Questionnaire: Chinese version

The aim of the present study was to develop a Chinese version of the Cognitive Emotion Regulation Questionnaire (CERQ-C) and to examine its psychometric properties in a sample of Chinese university students. The English version of the Cognitive Emotion Regulation Questionnaire was translated and back-translated prior to its administration to 791 participants recruited from two universities in Changsha, Hunan (China). Internal consistency, test–retest reliability, inter-scale reliability, and factorial validity were analysed. The CERQ-C exhibited: (1) moderate internal consistency (Cronbach's α=.83); (2) a mean inter-class correlation coefficient of .79; (3) a mean inter-item correlation coefficient of .09; and (4) moderate test–retest reliability (.64). Confirmatory factor analyses supported the original CERQ nine-factor model. Finally, with respect to criterion validity, several CERQ-C subscales were uniquely associated with symptoms of depression and anxiety.     

It’s a matter of time (perspectives): shifting valence responses to emotional ambiguity

Our stage in life has profound influences on our emotions. A well-established age-related positivity effect is putatively related to time perspectives—older adults have a limited time perspective and a greater motivation to experience positivity than young adults. Ambiguous emotions (e.g., surprised expressions) have both a positive and negative meaning, offering a highly relevant model for examining this developmental trend. Indeed, there are stable, trait-like individual differences in valence bias, or the tendency to interpret surprise as positive or negative, with a developmental trend toward positivity (older adults are more positive than young adults, who are more positive than children). However, little research has determined the extent to which the bias can be shifted. In three experiments, we found that ambiguity ratings were sensitive to time perspectives, even within a population of college students, and that this effect is relatively long-lasting. Results extend socioemotional selectivity theory and demonstrate that our life stage may have profound effects on otherwise stable emotional responses.     

Gami-Chunghyuldan ameliorates memory impairment and neurodegeneration induced by intrahippocampal Aβ 1-42 oligomer injection

Soluble oligomeric forms of amyloid beta (AβO) are regarded as a main cause of synaptic and cognitive dysfunction in Alzheimer’s disease (AD) and have been a primary target in the development of drug treatments for AD. The present study utilized a mouse model of AD induced by intrahippocampal injection of AβO (10 μM) to investigate the effects of Gami-Chunghyuldan (GCD), a standardized multi-herbal medicinal formula, on the presentation of memory deficits and neurohistological pathogenesis. GCD (10 and 50 mg/kg/day, 5 days, p.o.) improved AβO-induced memory impairment as well as reduced neuronal cell death, astrogliosis, and microgliosis in the hippocampus. In addition, GCD prevented AβO-triggered synaptic disruption and cholinergic fiber loss. These results suggest that GCD may be useful in the prevention and treatment of AD.     

Irrelevant objects of expertise compete with faces during visual search

Prior work suggests that nonface objects of expertise can interfere with the perception of faces when the two categories are alternately presented, suggesting competition for shared perceptual resources. Here, we ask whether task-irrelevant distractors from a category of expertise compete when faces are presented in a standard visual search task. Participants searched for a target (face or sofa) in an array containing both relevant and irrelevant distractors. The number of distractors from the target category (face or sofa) remained constant, whereas the number of distractors from the irrelevant category (cars) varied. Search slopes, calculated as a function of the number of irrelevant cars, were correlated with car expertise. The effect was not due to car distractors grabbing attention, because they did not compete with sofa targets. Objects of expertise interfere with face perception even when they are task irrelevant, visually distinct, and separated in space from faces.     

内隐和外显记忆任务之间的实验性分离:刺激的不同呈现形式的作用

通过操纵目标刺激的表面形式变化,在内隐和外显记忆任务之间,发现了实验性分离现象,图形识别任务受到了这种操纵的影响,再认任务则没有,同时发现,它们存在着依赖性的关系。对比相关研究,该实验结果表明,概念驱支任务对刺激的表面或知觉的物理性表现出敏感性,是在刺激的编码阶段;数据驱动任务在码阶段和提取阶段,均对其表现出敏感性,在刺激的提取阶段,这两种类型任务提取了刺激的某些共同成分。