What causes alternations in dominance during binocular rivalry?

Several mechanisms have been proposed to account for perceptual alterations during binocular rivalry, including neural adaptation and neural noise. However, the importance of neural adaptation for producing perceptual alterations has been challenged in several articles (Y.-J. Kim, Grabowecky, & Suzuki, 2006; Moreno-Bote, Rinzel, & Rubin, 2007). We devised an “online” adaptation procedure to reexamine the role of adaptation in binocular rivalry. Periods of adaptation inserted into rivalry observation periods parametrically alter the dynamics of rivalry such that increased adaptation duration decreases dominance duration, which cannot be accounted for by neural noise. Analysis of the average dominance durations and their variance (coefficient of variation) provides evidence for an increasingly important role of noise in rivalry alternations as a given dominance period continues in time, consistent with recent computational models.     

心理契约、工作满意度与组织承诺关系

深入研究心理契约、工作满意度与组织承诺关系,将对组织变革中的人力资源管理具有重要理论和实践价值。本文首先回顾心理契约、工作满意度和组织承诺的概念,其次对心理契约、工作满意度和组织承诺之间的关系做一简单总结,最后提出对人力资源管理实践的启示。     

任务无关积极情绪与时间限制对大学生风险决策的影响

利用日常生活决策任务,探讨了任务无关积极情绪和预支情绪与时间限制对风险决策的交互影响.研究结果表明:对于强调损失可能且意义重大的职业决策,积极情绪使个体表现出风险回避倾向,而时间限制通过影响个体的决策策略增强情绪状态对决策的影响作用.在无重大意义无损失可能的决策情境中,时间限制能降低个体的冒险倾向,而积极情绪通过促使个体夸大时间限制造成的压力,增强时间限制对风险决策的影响.     

Country‐of‐Origin Influences on Product Evaluations: The Impact of Animosity and Perceptions of Industriousness Brutality on Judgments of Typical and Atypical Products

When a product's country of origin has a reputation for manufacturing high‐quality products, there may be a positive impact on product judgments. If people feel animosity toward a country as a result of its political or social policies, they may react negatively to the products it produces. These opposing effects may depend in part on the subset of country‐relevant knowledge that is accessible in memory at the time of judgment. When a product was not one on which Germany or Japan had built its reputation for manufacturing high‐quality products, associating the product with these countries increased its evaluations when industriousness had been activated as part of an unrelated experiment. However, when concepts associated with brutality had been primed, the product's country of origin had a negative effect on judgments. When the product was typical of those manufactured in the country, however, identifying its country of origin increased product evaluations regardless of whether industriousness or brutality had been primed. Thus, animosity toward a product's country of origin had an adverse effect on reactions to it only if the product was not one on which the country's reputation was based.     

Online shopping hesitation.

This study was designed to understand which factors influence consumer hesitation or delay in online product purchases. The study examined four groups of variables (i.e., consumer characteristics, contextual factors perceived uncertainty factors, and medium/channel innovation factors) that predict three types of online shopping hesitation (i.e., overall hesitation, shopping cart abandonment, and hesitation at the final payment stage). We found that different sets of delay factors are related to different aspects of online shopping hesitation. The study concludes with suggestion for various delay-reduction devices to help consumers close their online decision hesitation.     

Hurricane Evacuation Expectations and Actual Behavior in Hurricane Lili1

This study compared respondents' hurricane evacuation expectations with their actual behavior 2 years later during Hurricane Lili. Respondents were found to have accurate expectations about their information sources, evacuation transportation modes, number of vehicles taken, and evacuation shelter types. They also had generally accurate expectations about the time it would take them to implement some, but not all, evacuation preparation tasks. These results extend contemporary attitude–behavior models by demonstrating a significant degree of correspondence between behavioral expectations and much later behavior under quite stressful conditions and suggest emergency planners can use many, but not all, aspects of coastal residents' evacuation expectations as a satisfactory basis for evacuation planning.     

Disembodiment in online social interaction: impact of online chat on social support and psychosocial well-being.

This study investigates how disembodiment--that is, transcendence of body constraints in cyberspace--in online chat affects social psychological well-being. The results demonstrate that disembodiment is a strong predictor of increased loneliness and depression, and decreased social support. However, the amount of chat use is a positive contributor to decreased offline estrangement and depression, and increased happiness. These contrasting results suggest that online chat use is a technology for social connection used for offline connectivity, but the disembodiment motive is associated with declines in social support and psychosocial well-being. The investigation of specified motives for online interaction, personal competency, or advanced technological alternatives in interaction is suggested for future research on the effects of online interaction on offline outcomes.     

Rasch calibration of a unidimensional perfectionism inventory for sport

ObjectiveThe purposes of this study were to generate and calibrate a unidimensional sports perfectionism scale for competitive athletes using the Rasch model, and validate the scale through the convergent and known-difference validity approach.MethodThe instrument, called the Sport Perfectionism Scale (SPS), was administered to 323 undergraduate students at a university in the southeastern U.S., ranging in age from 17 to 44 yrs, who previously competed on their high school team or currently compete at the intercollegiate level.ResultsUsing the Rasch model, the level of item difficulty (i.e., most and least difficult) and the athlete's level (i.e., intensity) of perfectionism were estimated. Model-data fit was determined by Infit and Outfit statistics (≥0.5 and ≤1.5). With the exception of one item, the model fits the data well. Rasch analysis supported the measure of perfectionism in sport as a unidimensional construct. Data from the SPS were positively related with those from Stoeber, Otto, Pescheck, Becker, and Stoll's ([2007]. Perfectionism and competitive anxiety in athletes: differentiating striving for perfection and negative reactions to imperfection. Personality and Individual Differences, 42, 959–969.) Perfectionism During Competitions measure (r = 0.63), and there was a significant difference in athlete's perfectionism between levels of competition, F (3, 314) = 5.21, p = 0.002, partial eta-squared, 0.05. This result supports convergent and known-difference evidence of validity for the SPS.ConclusionsThese results lend credence to using the Rasch model as a unique approach to validate evidence of perfectionism as a unidimensional construct in competitive sport.     

中国青少年心理健康素质·归因风格的研究

应用《青少年心理健康素质调查表·归因风格分量表》对全国23个省市地区的44063名青少年进行了调查,对不同年级阶段青少年归因风格的发展特点进行了分析。结果发现：（1）青少年归因风格的发展存在明显的阶段性,随着年级的升高,其内在归因倾向逐渐减弱;（2）在不同年级阶段,青少年归因风格不同维度的发展方向具有一致性。     

"三观"蜕变必迷信--党员干部参与封建迷信活动的主观原因分析

党的十六届四中全会提出了加强党的执政能力建设的重要任务,其中明确要求坚持马克思主义在意识形态领域的指导地位,不断提高建设社会主义先进文化的能力。在全会通过的《决定》中,对此要求进行了全面系统的阐述,特别强调要“弘扬科学精神,传播科学知识,提高干部群众识别和抵制封建迷信和伪科学的能力。”因此,党政领导干部带头抵制封建迷信,是建设社会主义先进文化的需要,事关党的执政能力建设,必须引起高度重视。然而值得注意的是,在近几年我国查处的各类