“金钱-环境”复合收益的风险决策:价值取向的影响

现实中的环境决策,往往要在多个由"金钱-环境"复合而成的结果间做选择。人们如何对异质复合结果进行评估与选择,是决策研究面临的新课题。本研究着重考察个体金钱取向和环境取向的相对强度对复合收益风险决策的影响。结果表明,无论是采用自陈量表(实验1)或内隐联想测验(实验2)来测量价值取向,还是采用混词造句任务(实验3)来启动价值取向,均发现价值取向相对强度对复合风险决策有显著影响。(1)相比于金钱取向占优的个体,环境取向占优的个体在进行复合风险决策时更偏好环境风险较小的复合选项;(2)在复合选项等价匹配任务中,环境取向占优的个体会赋予复合选项中的环境收益以更高权重,倾向于用更多的金钱收益来弥补环境收益的风险折扣;(3)在复合收益风险概率匹配任务中,环境取向占优的个体更倾向于为获取倍增的环境收益而承担更大的复合收益风险。作为对复合结果风险决策的首次探索,本研究初步回答了不同价值取向的个体在金钱-环境复合风险决策中更倾向于规避什么风险、拿什么冒险以及为什么冒险等问题,为今后进一步开展复合决策研究打下了理论和方法基础。     

Peer and cyber aggression in secondary school students: the role of moral disengagement,hostile attribution bias,and outcome expectancies

This study investigated the relationship between cognitive mechanisms, applied by people to rationalize and justify harmful acts, and engagement in traditional peer and cyber aggression among school children. We examined the contribution of moral disengagement (MD), hostile attribution bias, and outcome expectancies, and we further explored the individual contribution of each MD mechanism. Our aim was to identify shared and unique cognitive factors of the two forms of aggression. Three hundred and thirty‐nine secondary school children completed self‐report measures that assessed MD, hostile attribution bias, outcome expectancies, and their roles and involvement in traditional and cyber aggression. We found that the MD total score positively related to both forms of peer‐directed aggression. Furthermore, traditional peer aggression positively related to children's moral justification, euphemistic language, displacement of responsibility and outcome expectancies, and negatively associated with hostile attribution bias. Moral justification also related positively to cyber aggression. Cyber aggression and cyber victimization were associated with high levels of traditional peer aggression and victimization, respectively. The results suggest that MD is a common feature of both traditional and cyber peer aggression, but it seems that traditional forms of aggression demand a higher level of rationalization or justification. Moreover, the data suggest that the expectation of positive outcomes from harmful behavior facilitates engagement in traditional peer aggression. The differential contribution of specific cognitive mechanisms indicates the need for future research to elaborate on the current findings, in order to advance theory and inform existing and future school interventions tackling aggression and bullying. Aggr. Behav. 36:81–94, 2010. © 2009 Wiley‐Liss, Inc.     

Provoked vestibulodynia: Psychological predictors of topical and cognitive-behavioral treatment outcome

Psychological factors have been found to impact the pain experience and associated sexual impairment of women suffering from provoked vestibulodynia (PV). Despite a lack of randomized treatment outcome studies, particularly concerning psychological predictors of outcome, recent studies have shown that topical applications and cognitive-behavioral therapy (CBT) are among the most popular first-line interventions for PV. The present study aimed to determine the extent to which baseline fear-avoidance variables and pain self-efficacy were differentially associated with topical application and CBT outcomes at six-month follow-up. Data were obtained from 97 women who completed a randomized trial comparing these two treatments. Regression analyses revealed that for topical treatment, higher levels of baseline avoidance predicted worse pain and sexual functioning outcomes, whereas higher levels of pain self-efficacy predicted better outcomes. For CBT, higher levels of baseline fear of pain and catastrophizing contributed to higher pain intensity at follow-up, whereas higher levels of pain self-efficacy were associated with less pain. Psychological factors did not predict sexual functioning outcomes for CBT. Consistent with biopsychosocial models of pain and sexual dysfunction, results indicate that psychological factors contribute to pain and sexual impairment following treatment for PV. Specifically, findings suggest that fear-avoidance variables and pain self-efficacy are significant predictors of topical and CBT treatment outcomes in women with PV.     

Explanations determine the impact of information on financial investment judgments

Previous research has shown that some types of judgments are influenced by the results of an explanation‐seeking comprehension process. The present experiments investigated novice investors' stock price forecasts and investment decisions. Information presented in a narrative story order was hypothesized to promote the construction of a coherent mental representation that would affect how information was interpreted and subsequently used to predict stock price changes. The results showed that outcome information had a distinctively high impact, but only when the information was read in story order. These results imply that presentation order affects the mental representation of evidence relevant to the forecast, and the form of that mental representation moderates the impact of individual pieces of information on the ultimate judgment. Copyright © 2005 John Wiley & Sons, Ltd.     

权力感对拟人化产品购买意愿的影响

从信息加工流畅性视角切入,探讨消费者权力感对不同类型拟人化产品购买意愿的影响及其作用机理。168名本科生参与分组实验。结果表明,对于高权力感的人来说,与热情型拟人化产品相比,他们对能力型拟人化产品的购买意愿更高;对于低权力感的人来说,与能力型拟人化产品相比,他们对热情型拟人化产品的购买意愿更高。信息加工流畅性在权力感与拟人化类型交互影响拟人化产品购买意愿关系中起完全中介作用。     

癫痫预测方法的分析与研究

癫痫预测目的有两个从技术的层面去理解癫痫发作的机理,并对癫痫发作进行测量和改善,探索引发癫痫发作的周期性及先兆;开发出可靠的“癫痫发作前预警及治疗装置”。癫痫预测的主要研究方法有频域分析方法;时序分析方法;智能系统工程方法;非线性动力学方法。目前,越来越多的研究集中在非线性动力学的方法上,且来自多种方法的很多证据证明癫痫可以预测。     

易学与术数辨析

易学与术数之间存在千丝万缕的联系,但二者有基本的区别。从历史上看,易学与术数皆源于巫觋之术,而算命术则是术数中的一大门类。自学理上看,易学乃是揭示形而上之道的学问,术数是进行形而下应用操作的规则。但是术数中也蕴涵形上哲理,而且《周易》本为卜筮之书,要研究易学,难以绕开对术数的探讨。     

Essential theory, processes, and procedures for successful group psychotherapy: Group cohesion as exemplar

With few exceptions or at the very least cautions (cf. Burlingame, MacKenzie & Strauss, 2003) group psychotherapy has proven to be an effective and efficient treatment for a number of psychological disorders (Burlingame, Kapetanovic, & Ross, 2005). This article will briefly describe a theory that underlies successful group therapies. In addition, certain group processes—those elements that occur during the group itself that appear to be necessary conditions for improved patient outcomes—will also be addressed, although unfortunately, the sufficient conditions tying moment-to-moment process to actual outcome (improved patient functioning by the end of therapy, and at 6-month follow-up, for instance) are not quite as easily delineated. A closer study of the group therapeutic factor cohesion will be utilized as an example of these practice and research dilemmas. Finally, suggestions for future directions, which might more clearly uncover important connections between process and outcome, are addressed.     

Prediction in infants and adults: A pupillometry study

Adults use both bottom‐up sensory inputs and top‐down signals to generate predictions about future sensory inputs. Infants have also been shown to make predictions with simple stimuli and recent work has suggested top‐down processing is available early in infancy. However, it is unknown whether this indicates that top‐down prediction is an ability that is continuous across the lifespan or whether an infant's ability to predict is different from an adult's, qualitatively or quantitatively. We employed pupillometry to provide a direct comparison of prediction abilities across these disparate age groups. Pupil dilation response (PDR) was measured in 6‐month olds and adults as they completed an identical implicit learning task designed to help learn associations between sounds and pictures. We found significantly larger PDR for visual omission trials (i.e. trials that violated participants’ predictions without the presentation of new stimuli to control for bottom‐up signals) compared to visual present trials (i.e. trials that confirmed participants’ predictions) in both age groups. Furthermore, a computational learning model that is closely linked to prediction error (Rescorla‐Wagner model) demonstrated similar learning trajectories suggesting a continuity of predictive capacity and learning across the two age groups.