Proportional reasoning,framing effects,and affirmative action: Is six of one really half a dozen of another in university admissions?

People often reason proportionally, perceiving fixed outcomes as larger or smaller depending upon the reference condition. Thus, for policies affecting individuals, presenting data as percentages rather than frequencies can alter perceived effects on high versus low base rate group members, even though identical numbers of individuals in each group are affected. Such numerical framing effects were explored through a case analysis of public debates over race-conscious selection policies and through experimental manipulations employing a race-conscious university admissions scenario. Undergraduates (N = 193) received data reporting the expected impact on black and white student enrollment resulting from a university shift to race-neutral admissions. Compared to those encountering percentages or proportions, participants receiving identical information expressed as frequencies revealed a predicted greater preference for race-neutral or “race blind” admissions. Structural equation analysis supported a model in which perceived impact and fairness mediated the relationship between format and endorsement of race-neutral admissions.     

The role of self‐esteem and anxiety in decision making for self versus others in relationships

Previous research has documented a tendency for people to make more risk‐seeking decisions for others than for themselves in relationship scenarios. Two experiments investigated whether this self–other difference is moderated by participants' self‐esteem and anxiety levels. In Experiment 1, lower self‐esteem and higher anxiety levels were associated with more risk‐averse choices for personal decisions but not for decisions for others. Therefore, participants with lower self‐esteem/higher anxiety showed greater self–other differences in comparison to participants with higher self‐esteem/lower anxiety levels. Experiment 2 demonstrated that this effect was largely mediated by participants' expectations of success and feelings about potential negative outcomes. These results are discussed in the context of “threats to the self,” with a central role played by anxiety and self‐esteem threats in personal decision making but not in decision making for others. Copyright © 2005 John Wiley & Sons, Ltd.     

初中生网络欺负的发展趋势：道德推脱、观点采择与共情关注的作用

以496名初中生为研究对象, 对其网络欺负行为进行为期2年的4次追踪测试, 同时测试其道德推脱、观点采择与共情关注。采用潜变量增长模型探讨初中生网络欺负行为的发展轨迹, 并分析道德推脱、观点采择与共情关注的影响。结果发现, (1)在2年时间内, 初中生网络欺负行为呈显著下降趋势, 起始水平与下降速度有显著负相关; (2)道德推脱能显著正向预测初中生网络欺负行为的起始水平, 负向预测其下降趋势; (3)观点采择能够显著负向预测初中生网络欺负行为的起始水平, 正向预测其下降趋势。上述结果肯定了道德推脱与观点采择对初中生网络欺负发展轨迹的预测作用, 以网络情境支持了道德推脱理论, 部分支持了社会信息处理模型。     

Risk factors for onset of eating disorders: Evidence of multiple risk pathways from an 8-year prospective study

Objective

Use classification tree analysis with lagged predictors to determine empirically derived cut-points for identifying adolescent girls at risk for future onset of threshold, subthreshold, and partial eating disorders and test for interactions between risk factors that may implicate qualitatively distinct risk pathways.

Method

Data were drawn from a prospective study of 496 adolescent girls who completed diagnostic interviews and surveys annually for 8 years.

Results

Body dissatisfaction emerged as the most potent predictor; adolescent girls in the upper 24% of body dissatisfaction showed a 4.0-fold increased incidence of eating disorder onset (24% vs. 6%). Among participants in the high body dissatisfaction branch, those in the upper 32% of depressive symptoms showed a 2.9-fold increased incidence of onset (43% vs. 15%). Among participants in the low body dissatisfaction branch, those in the upper 12% of dieting showed a 3.6-fold increased incidence onset (18% vs. 5%).

Conclusion

This three-way interaction suggests a body dissatisfaction pathway to eating disorder onset that is amplified by depressive symptoms, as well as a pathway characterized by self-reported dieting among young women who are more satisfied with their bodies. It may be possible to increase the effectiveness of prevention programs by targeting each of these qualitatively distinct risk groups, rather than only individuals with a single risk factor.     

Role of motor processes in extrinsically encoding mental transformations

Previous research has shown that imagined perspective rotations elicit spatial and low-level cortical motor areas of the brain when participants rely on knowledge of their physical body, or body percept (Wraga, Flynn, Boyle, & Evans, 2010). The current study used functional magnetic resonance imaging (fMRI) to investigate whether recruitment of the body percept would activate low-level cortical motor areas of the brain within other classes of mental transformations. Participants performed imagined object and perspective rotations of three-dimensional Shephard-Metzler (1971) stimuli. For each task, participants used button presses serving as virtual pointers to locate a prescribed portion of the stimuli with respect to their "right" and "left." We found low-level cortical motor activation (M1) for both mental transformations; however, the degree to which such activation related to participants' performance differed, as well as the recruitment of additional nonmotoric strategies. The results are discussed in terms of recent hypotheses regarding the role of the body percept in extrinsically encoded mental transformations.     

Increased saccadic rate during smooth pursuit eye movements in patients at Ultra High Risk for developing a psychosis

Abnormalities in eye tracking are consistently observed in schizophrenia patients and their relatives and have been proposed as an endophenotype of the disease. The aim of this study was to investigate the performance of patients at Ultra High Risk (UHR) for developing psychosis on a task of smooth pursuit eye movement (SPEM). Forty-six UHR patients and twenty-eight age and education matched controls were assessed with a task of SPEM and psychiatric questionnaires. Our results showed that both the corrective and non-corrective saccadic rates during pursuit were higher in the UHR group. There were however no differences in smooth pursuit gain between the two groups. The saccadic rate was related to positive UHR symptoms. Our findings indicate that abnormalities in SPEM are already present in UHR patients, prior to a first psychotic episode. These abnormalities occur only in the saccadic system.     

Hand dominance influences the processing of observed bodies

In motor tasks, subgroups of lefthanders have been shown to differ in the distribution of attention about their own bodies. The present experiment examined whether similar attentional biases also apply when processing observed bodies. Sixteen right handers (RHs), 22 consistent left handers (CLHs) and 11 relatively ambidextrous inconsistent left handers (ILHs) performed an own body transformation task in which they were instructed to make speeded left–right judgements about a schematic human figure. Attentional biases associated with handedness were found to extend to observed bodies: CLHs’ judgements were faster to the figure’s left side, while ILHs, like RHs, showed facilitated performance to the figure’s right side. These results demonstrate a novel embodiment effect whereby the processing of a static schematic human figure is modulated by an individual’s personal motor capabilities. This finding suggests that motor simulation may contribute to whole body perception in the absence of actual or implied actions.     

学前儿童合作认知及合作行为的培养研究

选取幼儿园大、中、小12个自然班,共317名幼儿为被试,进行为期四周的观点采择合作认知故事及游戏形式的合作行为训练。结果表明：①合作认知故事及游戏形式的合作行为训练,对提高学前儿童合作认知及合作行为水平影响显著,两者结合的训练方式最有效。②合作认知故事的培养训练对不同年龄儿童合作认知水平的提高影响显著;合作游戏训练对中班儿童合作水平的提高影响显著。③合作认知及合作行为训练的性别差异不显著。     

观点采择对高中教师共情反应的影响:共情倾向的中介作用

为了探讨观点采择与共情倾向对高中教师共情反应的影响,164名高中教师完成了人际反应指数量表,并在三种不同的观点采择指导语下完成共情反应问卷。结果表明:(1)观点采择通过指导语操作检验有效;(2)情感观点采择下的共情反应显著高于认知观点采择下的共情反应;认知观点采择下的共情反应显著高于技术观点采择下的共情反应;(3)情感观点采择通过共情倾向的部分中介作用对共情反应产生影响,认知观点采择通过共情倾向的完全中介作用对共情反应产生影响。