Deciding between theories of how reasoning develops is hard

Although Sloutsky agrees with our interpretation of our data, he argues that the totality of the evidence supports his claim that children make inductive generalisations on the basis of similarity. Here we take issue with his characterisation of the alternative hypotheses in his informal analysis of the data, and suggest that a thorough Bayesian analysis, although practically very difficult, is likely to result in a more finely balanced outcome than he suggests.     

基于期望值最大化的理论何时失效：风险决策中为自己-为所有人决策差异的眼动研究

主流的风险决策理论专家发展了一系列基于期望值最大化(expectation-maximization)的理论, 以期捕获所有人的风险决策行为。然而大量证据表明, 这些基于期望值最大化的理论并不能如同描述性理论那样理想地描述单一个体的决策行为。本研究采用眼动追踪技术, 系统考察了个体在为所有人决策与为自己决策时的风险决策行为及信息加工过程的差异。本研究发现, 基于期望值最大化的理论可捕获为所有人决策或为自己多次决策时的情况, 却不能很好捕获个体为自己进行单次决策时的情况。本研究结果有助于理解基于期望值最大化的理论与启发式/非基于期望值最大化的理论的边界, 为风险决策理论的划分和发展提供实证参考。     

简述张三丰的内丹修炼理论

根据《张三丰全集》以及相关史书的记载可知,张三丰是元末明初道教全真派道士。1314年,67岁的张三丰,因感人生光阴有限,富贵无常,入终南山拜火龙真人为师,学长生之道。张三丰在出家后虽然云游四海,但主要的隐居地却是武当山。相传他在武当山看到猫与蛇打架,于一夜之间悟出了“太极拳”的妙理。不论这个传说的真实程度如何,有一个事实却是不可否认的,这就是武当山道教内家拳的创立和流传与张三丰的名字一直是联系在一起的。张三丰之所以在内家拳方面享有盛誉,是因为他勤奋学习和钻研道教传统的内丹理论,并将此等理论应用于武术的习练与创新过…     

Teams make it work: how team work engagement mediates between social resources and performance in teams

In this study we analyze the mediating role of team work engagement between team social resources (i.e., supportive team climate, coordination, teamwork), and team performance (i.e., in-role and extra-role performance) as predicted by the Job Demands-Resources Model. Aggregated data of 533 employees nested within 62 teams and 13 organizations were used, whereas team performance was assessed by supervisor ratings. Structural equation modeling revealed that, as expected, team work engagement plays a mediating role between social resources perceived at the team level and team performance as assessed by the supervisor.     

The science of cycology: Failures to understand how everyday objects work

When their understanding of the basics of bicycle design was assessed objectively, people were found to make frequent and serious mistakes, such as believing that the chain went around the front wheel as well as the back wheel. Errors were reduced but not eliminated for bicycle experts, for men more than women, and for people who were shown a real bicycle as they were tested. The results demonstrate that most people's conceptual understanding of this familiar, everyday object is sketchy and shallow, even for information that is frequently encountered and easily perceived. This evidence of a minimal and even inaccurate causal understanding is inconsistent with that of strong versions of explanation-based (or theory-based) theories of categorization.     

Future work selves: how salient hoped-for identities motivate proactive career behaviors

The term future work self refers to an individual's representation of himself or herself in the future that reflects his or her hopes and aspirations in relation to work. The clearer and more accessible this representation, the more salient the future work self. An initial study with 2 samples (N = 397; N = 103) showed that future work self salience was distinct from established career concepts and positively related to individuals' proactive career behavior. A follow-up longitudinal analysis, Study 2 (N = 53), demonstrated that future work self salience had a lagged effect on proactive career behavior. In Study 3 (N = 233), we considered the role of elaboration, a further attribute of a future work self, and showed that elaboration motivated proactive career behavior only when future work self salience was also high. Together the studies suggest the power of future work selves as a motivational resource for proactive career behavior.     

Understanding how groups work: a study of homogeneous peer group failures

The study examines thirty-six homogeneous peer support groups that failed to positively benefit most of the participants. Outcomes were assessed pre and one-year post using measures of mental health, marital relationships, and motherhood role indices. Four central group process characteristics previously found to be common in successful peer support groups were used as a framework for developing a series of post hoc hypotheses. The groups were found to be low on cohesiveness defined behaviorally, saliency, cognitive structures for reframing common dilemmas, and limited in the range of therapeutic experiences.     

Working memory at work: how the updating process alters the nature of working memory transfer

In three N-Back experiments, we investigated components of the process of working memory (WM) updating, more specifically access to items stored outside the focus of attention and transfer from the focus to the region of WM outside the focus. We used stimulus complexity as a marker. We found that when WM transfer occurred under full attention, it was slow and highly sensitive to stimulus complexity, much more so than WM access. When transfer occurred in conjunction with access, however, it was fast and no longer sensitive to stimulus complexity. Thus the updating context altered the nature of WM processing: The dual-task situation (transfer in conjunction with access) drove memory transfer into a more efficient mode, indifferent to stimulus complexity. In contrast, access times consistently increased with complexity, unaffected by the processing context. This study reinforces recent reports that retrieval is a (perhaps the) key component of working memory functioning.     

Resistance can be good or bad: how theories of resistance and dissonance affect attitude certainty

This research investigated how lay theories about resisting persuasion can affect attitude certainty. Specifically, people who believed that resistance was negative (i.e., implies close-mindedness) showed different levels of attitude certainty after resisting persuasive messages than people who believed resistance was positive (i.e., implies intelligence). When people held positive lay theories of resistance and overcame ostensibly strong arguments, they showed increased attitude certainty (compared to those who overcame ostensibly weak arguments). However, individuals who believed that resistance was negative did not show increases in attitude certainty when overcoming strong arguments. Experiment 2 suggests that the effect of lay theories and perceived argument strength on attitude certainty was due to dissonance created by believing that resistance is undesirable but nonetheless resisting persuasion.     

Computer viruses: What they are,how they work,how they might get you,and how to control them in academic institutions

A computer virus is a program that replicates itself and spreads to computers with the goal of disrupting or destroying normal computer use. In academic computing, viruses represent a serious problem that costs millions of dollars in losses annually and hinders the free exchange of information so critical to education. Viruses operate in incubation, infection, and destroy phases. The nature, mechanisms, and preventive measures for personal-computer viruses are reviewed. Different procedures are recommended to protect research laboratories, instructional laboratories, and software lending libraries. Tradeoffs between providing adequate protection and not having the security become too burdensome are considered.     

Early words that work: When and how virtual linguistic mimicry facilitates negotiation outcomes

We hypothesized that in online, virtual formats, negotiators receive better outcomes when mimicking their counterpart's language; furthermore, we predicted that this strategy would be more effective when occurring early in the negotiation rather than at the end, and should also be effective across both independent and interdependent cultures. Results from two experiments supported these hypotheses. Experiment 1 was conducted in Thailand and demonstrated that negotiators who actively mimicked their counterpart's language in the first 10 min of the negotiation obtained higher individual gain compared to those mimicking during the last 10 min, as well as compared to control participants. Experiment 2 replicated this effect in the United States (with Dutch and American negotiators) and also showed that trust mediated the effect of virtual linguistic mimicry on individual negotiation outcomes. Implications for virtual communication, strategic mimicry, and negotiations are discussed.     

Perceiving Potentiality: A Metaphysics for Affordances

Topoi - According to ecological psychology, animals perceive not just the qualities of things in their environment, but their affordances: in James Gibson’s words, ’what things furnish,...     

Respect for Embryos and the Potentiality Argument

Theoretical Medicine and Bioethics -