Individual differences in risk perception versus risk taking: handedness and interhemispheric interaction

Research indicates that right-hemisphere mechanisms are specifically sensitive to and averse to risk. Research also indicates that mixed degree of handedness is associated with increased access to right hemisphere processing. Accordingly, it was predicted that mixed-handers would exhibit greater risk aversion. Participants were presented with various risky activities and were asked to rate (i) the perceived risk, (ii) the perceived benefit, and (iii) their likelihood to engage in each activity. No handedness differences were found for any of these ratings. Regression analyses, however, indicated that the likelihood to engage in risky activities was predicted primarily by the perceived risks in mixed-handers and by the perceived benefits in strong-handers.     

Benefits of interhemispheric collaboration can be eliminated by mixing stimulus formats that involve different cortical access routes

Previous studies indicate that the benefits of dividing an information processing load across both cerebral hemispheres outweigh the costs of interhemispheric transfer as tasks become more difficult or cognitively complex. This is demonstrated as better performance when two stimuli to be compared are presented one to each visual field and hemisphere than when both stimuli are presented to the same single hemisphere (an across-hemisphere advantage). Two experiments indicate that this finding does not generalize to complex tasks that require matching numeric quantities represented by two very different visual formats whose processing involves somewhat different cortical areas: digits and dice-like dot patterns. In fact, mixing these stimulus formats consistently produces a within-hemisphere advantage. We propose that, when two simultaneously presented stimuli are presented in sufficiently different visual formats, identification of the two stimuli may take place in parallel, via different cortical access routes and with little or no interference, even when they are presented to the same cerebral hemisphere.     

两难中合作行为研究的回顾和展望

如何预测人们将做出合作行为,是社会两难决策研究中重要的问题。该文回顾了社会两难研究的进展情况,包括社会两难的特征、来源、类型、研究方法和理论基础;综述了两难中影响合作行为的个人因素和情景因素,重点介绍了目前存在争议的制裁系统和合作的关系研究,以及为什么它们之间会表现出一些自相矛盾之处;对合作行为研究存在的问题进行了初步探讨,未来的研究将更侧重于合作决策的理论建构、文化内涵和认知过程的揭示     

地区层面上的心理学国际合作：以欧洲为例

根据需要,心理学的国际合作能够且需要在不同的层面上进行,包括全球层面、地区层面甚至局部地区层面。在回顾国际化心理学的主要功能之后,以欧洲为例阐述了心理学在地区层面上跨国合作的近期进展情况。在介绍“欧洲的各个侧面”部分,通过数据比较说明了欧洲传统文化的多样性,教育领域亦如此。为了欧洲一体化,欧盟大力支持各种形式的学术培训及科学研究的合作交流,在心理学领域也有明显的效果。本文通过欧洲地区性的课程创新、原创性的研究、新出现的心理学跨国组织对心理学领域的合作进行了说明。如果要与欧洲各心理学研究机构进行合作交流,本文可能会有所帮助。本文也会激发世界其他地方思考地区性合作的可能性和实际需要     

The Holy and Great Council of the Orthodox Church and Interreligious Dialogue

This article examines how, through a pan-Orthodox synodical decision, the Orthodox Church has for the first time officially asserted its obligation to enter into dialogue with people of other cultures and religious beliefs and emphasized the value of serious and clear interreligious dialogue to promote mutual trust, peace, and reconciliation. The Holy and Great Council of the Orthodox Church of Crete clarified that interreligious dialogue excludes both syncretism and proselytism, and that interreligious dialogue needs to be accompanied by the condemnation of fundamentalism, nationalism, and the religious justification of violence. Finally, this article makes reference to the basic principles of the Orthodox tradition regarding the promotion of interreligious dialogue and emphasizes that dialogue entails respect for other religions but also discernment.     

Exploring interhemispheric collaboration in older compared to younger adults

Physical and Name Identity letter-matching tasks were used to explore differences in interhemispheric collaboration in younger and older adults. To determine whether other factors might also be related to across/within-hemisphere processing or visual field asymmetries, neuropsychological tests measuring frontal/executive functioning were administered, and comparisons were made for participants split into low and high efficiency groups based on performance on the letter-matching tasks. A Task by Across/Within interaction was found for both groups, but with a stronger within-hemisphere advantage for the Physical Task and a weaker across-hemisphere advantage for the Name Task for older participants. More efficient groups and better performers on several neuropsychological tasks showed a reduced across-hemisphere advantage for the Name Identity task. Findings suggest that computational complexity, specific task demands, and perhaps trade-offs between age-related changes in gray and white matter all contribute to whether processing loads are distributed across or within hemispheres as we age.     

Lay Personality Theories in Interactive Decisions: Strongly Held,Weakly Supported

In interactive decisions, cues to what others will do are important in forming a strategy. Information about others' personalities appears to be potentially valuable for this purpose. We report a series of four studies examining how information about another actor's personality influences people's own choices in interactive decisions. The studies found widespread beliefs that others' personality characteristics are strongly predictive both of broad classes of decision behavior (competition/cooperation, risk‐seeking/risk‐aversion) (Study 1) and of specific choices (Study 2) in single‐agent settings. These beliefs extended to predicting others' choices in interactive decisions (Study 3) and to shaping the predictor's own decisions in interactive play in Chicken and Assurance games (Study 4). Overall, we found extensive evidence that laypeople believe that the personality traits we selected (angry‐hostility, anxiety, assertiveness, excitement‐seeking, and warmth) have substantial effects on behavior in interactive decisions and they act on those beliefs when making their own decisions. The empirical evidence supporting the predictive validity of these traits was, however, quite weak. Copyright © 2014 John Wiley & Sons, Ltd.     

Applying a logic of appropriateness to understand behavioral differences between common resource dilemmas and public good dilemmas

Common resource dilemmas (CRDs) and public good dilemmas (PGDs) are distinct types of social dilemmas, yet they model the same underlying conflict between the collective interest and one's self-interest. Here, we study and interpret behavioral differences between these two main types of social dilemmas by applying a logic of appropriateness. In two experiments, we argue and demonstrate that CRDs, relative to PGDs, evoke higher levels of cooperation, because taking from collective property (in CRDs) is generally considered less appropriate than not giving from personal property (in PGDs). Importantly, these differential considerations of appropriateness are reflected not only in the willingness to cooperate but also in the willingness to punish and reward others' (non)cooperative behavior. Taken together, the findings reveal that CRDs and PGDs elicit different norms of appropriateness.     

Dynamic probability of reinforcement for cooperation: Random game termination in the centipede game

Experimental games have previously been used to study principles of human interaction. Many such games are characterized by iterated or repeated designs that model dynamic relationships, including reciprocal cooperation. To enable the study of infinite game repetitions and to avoid endgame effects of lower cooperation toward the final game round, investigators have introduced random termination rules. This study extends previous research that has focused narrowly on repeated Prisoner's Dilemma games by conducting a controlled experiment of two‐player, random termination Centipede games involving probabilistic reinforcement and characterized by the longest decision sequences reported in the empirical literature to date (24 decision nodes). Specifically, we assessed mean exit points and cooperation rates, and compared the effects of four different termination rules: no random game termination, random game termination with constant termination probability, random game termination with increasing termination probability, and random game termination with decreasing termination probability. We found that although mean exit points were lower for games with shorter expected game lengths, the subjects' cooperativeness was significantly reduced only in the most extreme condition with decreasing computer termination probability and an expected game length of two decision nodes.     

Développer l’apprentissage,la coopération et l’identité organisationnelle en milieu hospitalier Evaluation de l’impact d’un Dispositif d’Immersion Structuré

In this article we analyse the effects of an innovative approach adopted in a hospital institution. Using a specific framework, this approach consists of placing staff into a department other than their own. The objectives of this approach relate to cognition, identity and organisational behaviour. Based on thematic and structural analysis of 25 interviews, this evaluation shows that the effects of the intervention are consistent with the anticipated objectives on several levels: (1) learning about ways of functioning and working in the host department, (2) growth of co-operation between departments, (3) the development of a feeling of organisational belonging.