权力感和群体身份对合作行为影响——社会距离的中介作用

本文基于权力的社会距离理论作为切入点,探究在合作的过程中权力感所产生的影响及社会距离所产生的中介作用、群体身份所产生的缓解作用。利用角色扮演法、情景回忆法来操控个体权力感,采用虚拟与真实的公共物品范式、囚徒困境范式来测量人际合作,通过IOS问卷测量社会距离,并用最简身份范式来控制群体身份,从而让实验得以更好探究权力感对合作有如何的影响机制。本文通过三个实验,得出的实证证据表明：（1）在虚拟的投资游戏中,高权力感的个体捐赠金额是显著少于低权力感的个体;（2）在互动情境中,个体所感知到的与其互动对象的社会距离,在权力、合作之间起到部分中介的效应;（3）对于同组内的成员,高权力感的个体相比较于低权力感的个体,有着更多的合作行为。因此,权力感增加了个体的社会距离感知、从而减少了合作行为,但互动对象中的群体身份也在有效调节着这一心理现象。     

The money attitude of covert and overt narcissists

The money attitude of covert and overt narcissists was studied. Both covert and overt narcissism predicted the power-prestige dimension of money attitude, which were both mediated by the need for social power. Interestingly, the relationship for covert narcissism was also mediated by the fear of negative social evaluation, confirming its socially vulnerable and hypersensitive features. In addition, the anxiety and distrust factors of money attitude were correlated with covert narcissism only. Anxiety was explained by the need for power and avoidance motivation, but no significant mediator was found for distrust. These findings provide evidence to the similarities and differences between the two types of narcissism. They also shed light on narcissists’ money-related behaviors, such as investment strategy and consumer behaviors.     

Nietzsche on the health of the soul

Abstract

Health (particularly of the soul [Seele]) is a central concept in Nietzsche’s work. Yet in the most philosophically sophisticated secondary literature on Nietzsche, there has been fairly little sustained treatment of just what Nietzschean health consists in. In this paper, I aim to provide an account of some of the central marks of this health: resilience, discipline, vitality, a certain positive condition of the will to power, a certain tendency toward integration, and so on. This exposition and discussion will be the main task of the paper. Then in the concluding section of the paper, I consider a line taken in some related secondary literature, which would suggest that health might ultimately be understood in formal or dynamic terms, relating to one’s will to power and/or the unity of one’s drives. I will present the beginnings of an argument against such an account of health. In focusing on the formal and dynamic side exclusively, it cannot get the full story. In particular, it seems to me to miss the substantive dimension that is essential if we are to understand health properly. As I shall suggest, the core concept of Nietzschean health is not fully explicable except by reference to normative terms.     

Effects of Sensory Deficit on Phalanx Force Deviation During Power Grip Post Stroke

The effect of sensory deficits on power grip force from individual phalanges was examined. The authors found that stroke survivors with sensory deficits (determined by the Semmes-Weinstein monofilament test) gripped with phalanx force directed more tangential to the object surface, than those without, although both groups had similar motor deficits (Chedoke-McMaster and Fugl-Meyer), grip strength, and skin friction. Altered grip force direction elevates risk of finger slippage against the object thus grip loss/object dropping, hindering activities of daily living. Altered grip force direction was associated with altered muscle activation patterns. In summary, the motor impairment level alone may not describe hand motor control in detail. Information about sensory deficits helps elucidate patients' hand motor control with functional relevance.     

What is Postnormal When There is no Normal? A Postdichotomous View of the Histories of the Past,Present, and Future

In this paper, I discuss the concept of ‘postnormal times’ and argue that the term postnormal is misrepresentative where applied to describe a state beyond so-called ‘normal’ times. Such normality is characterized by, i) progress towards social, economic and political equilibrium, and ii) future betterment for all. I posit that these conditions represent, at best, misplaced optimism and, at worst, a deliberate veil of untruths. I also argue that the foundation of thinking on normalcy, based on the classical free market economics of Adam Smith, was flawed from the outset. I propose that what are termed postnormal times actually represent an extreme set of long-term ‘normal times’. Importantly, I propose that human responses to a situation of extreme normalcy will be different from responses to the novel and truly postnormal. Action, or lack thereof, to address extreme normalcy requires a different mindset and starting point to that for addressing a new or post-normalcy. As such, I call for fundamental change to economic and political priorities and for a focus on social needs and values in the very near future. Finally, I posit that, whether we live in postnormal, ‘hyper-normal’, abnormal or ‘new normal’ times, we must accept that, for most of humanity and for the planet on which we live, these are not good times, and we must strive to bring about urgent and radical change.     

Self-Affection and Pure Intuition in Kant

Are the pure intuitions of space and time, for Kant, dependent upon the understanding's activity? This paper defends the recently popular Self-Affection Thesis (SAT): namely, that the pure intuitions require an activity of self-affection—an influence of the understanding on the inner sense. Two systematic objections to this thesis have been raised: The Independence objection claims that SAT undermines the independence of sensibility; the Compatibility objection claims that certain features of space and time are incompatible with being the products of the understanding's activity. I show that the resources to rebut these objections can be found in Kant's account of causal influence.     

Feedback related brain activity in a gambling task: A temporal analysis of EEG correlates

Lucchiari, C. & Pravettoni, G. (2010). Feedback related brain activity in a gambling task: A temporal analysis of EEG correlates. Scandinavian Journal of Psychology 51, 449–454. The pattern of neural correlates of feedback processing has been the subject of a number of studies, using both neuroimaging and electrophysiological recordings. A complex functional network was found to be activated after a choice in order to process a feedback and sustain an adaptive behavior. However, many aspects of this network are still unclear and further research is needed to better understand this process. We conducted an EEG study using a simple gambling task. Twenty three subjects participated to the study. We analyzed both EEG power spectrum and ERP components evoked by presentation of a feedback signal (money gain or loss) during a simple gambling task. Our data confirmed that a negative ERP component is present about 270 ms after feedback, particularly relevant following a choice with negative outcome. Furthermore, the theta and delta oscillatory activity seem to be correlated to a dynamic decision‐making process within specific cortical networks. In particular, theta activity showed a valence dependent development between 150 and 350 ms post‐feedback onset. Differently from previous studies (Cohen, Elger & Ranganath, 2007; Marco‐Pallares, Cucurell, Cunillera et al., 2008), we did not find any valence effect in beta range. However, our data are consistent with Christie and Tata (2009) , probably due to the nature of the gambling task used in both studies. In conclusion, our data, in line with some prior findings showed that the feedback related response is correlated to a complex pattern of cortical activation probably mediated by theta and delta activity.     

Power,testosterone, and risk‐taking

Power has been found to increase risk‐taking (Anderson & Galinsky, 2006 ) but this effect appears to be moderated by individual differences in power motivation (Maner, Gailliot, Butz, & Peruche, 2007 ). Among individuals high in power motivation, the experience of power leads to more conservative decisions. As testosterone is associated with the pursuit of power and status (Dabbs & Dabbs, 2000 ), we reasoned that high‐testosterone individuals primed with power might be similarly risk‐avoidant. Conversely, we hypothesized that high‐testosterone individuals primed with low power, would see risk‐taking as a vehicle for pursuing potential gains to their status and resources. We report findings from two experiments that are consistent with these predictions. In Experiment 1, higher testosterone males (as indicated by second–fourth digit ratio) showed greater risk‐taking when primed with low power. Experiment 2 replicated this effect and also showed that when primed with high power, higher testosterone males took fewer risks. Copyright © 2009 John Wiley & Sons, Ltd.     

平均数差异显著性检验统计检验力和效果大小的估计原理与方法

该文以平均数差异显著性检验为例,对实验数据进行假设检验后,继续对其统计检验力和效果大小进行估计的基本原理和方法作一介绍。     

Social Dominance Orientation, Authoritarianism, and Support for Intergroup Violence Between the Middle East and America

Social dominance theory has generally posited that terror and intergroup violence can be explained in terms of social dominance struggles. Social dominance theorists have described terror mostly as a tool for maintaining intergroup hierarchies in society (Sidanius & Pratto, 1999). Although implications of the theory suggest that terror may also be used by lower status groups as a tool for the resistance of domination by higher status groups, this prediction heretofore has not been empirically demonstrated. Data from two samples, one in the United States and one in Lebanon, were collected regarding attitudes toward terrorism and intergroup violence. The results show that the American sample demonstrates the typical patterns of social dominance such that those who are higher in social dominance orientation tend to support greater violence toward the Middle East. However, the Lebanese sample shows the opposite pattern, such that those who are lower in social dominance orientation tend to support violence toward the West. These results suggest that (1) support for terrorism among Middle East citizens is a project of counterdominance, and, more broadly, that (2) the relationship between social dominance orientation and support for violence depends on the dynamics of the conflict and the status of the perpetrators.