Facial first impressions and partner preference models: Comparable or distinct underlying structures?

Given the frequency of relationships nowadays initiated online, where impressions from face photographs may influence relationship initiation, it is important to understand how facial first impressions might be used in such contexts. We therefore examined the applicability of a leading model of verbally expressed partner preferences to impressions derived from real face images and investigated how the factor structure of first impressions based on potential partner preference-related traits might relate to a more general model of facial first impressions. Participants rated 1,000 everyday face photographs on 12 traits selected to represent (Fletcher, et al. 1999, Journal of Personality and Social Psychology, 76, 72) verbal model of partner preferences. Facial trait judgements showed an underlying structure that largely paralleled the tripartite structure of Fletcher et al.'s verbal preference model, regardless of either face gender or participant gender. Furthermore, there was close correspondence between the verbal partner preference model and a more general tripartite model of facial first impressions derived from a different literature (Sutherland et al., 2013, Cognition, 127, 105), suggesting an underlying correspondence between verbal conceptual models of romantic preferences and more general models of facial first impressions.     

特质推理的神经机制:来自脑成像的证据

特质推理一直是社会认知研究的重要主题,它包括有意图的特质推理和自发特质推理。随着社会认知神经科学蓬勃发展,研究者开始探讨二者的神经机制。fMRI研究表明,特质推理期间主要大脑活动定位于mPFC和TPJ这两个广泛脑区,有意图和自发特质推理分别更多地激活mPFC与TPJ。ERP研究发现,P300是特质推理期间与不一致信息探测和解决过程相关的EEG成分,有意图和自发特质推理在时间进程上大多同步,却激活了不同脑区。总之,当前已积累了较多可信的脑成像证据,从社会认知神经科学的视角探讨特质推理的神经机制是未来较有前途的一个方向。     

The interaction model of anxiety: An empirical test in a parachute training situation

The interaction model of anxiety was examined by assessing both state and trait anxiety in 64 male military personnel on a Basic Parachutist Course. Two separate tests of the interactional model of anxiety were conducted, involving physical danger and social evaluation situations. The same subjects participated in both studies. In both physical danger and social evaluation studies, measures of state anxiety and cognitive appraisal (perception) of anxiety were obtained in both high-stress and non-stress conditions. Measures of social evaluation and physical danger trait anxiety were obtained in a low-stress condition. The interactional model was strongly supported for the physical danger situation. As predicted, high physical danger trait anxiety subjects experienced greater increases in state anxiety than low physical danger subjects proceeding from the non-stress to the high stress physical danger condition. The interaction model was not supported in the social evaluation situation; although not significant, mean levels of state anxiety were in the predicted direction. Results are discussed in the context of person perception and the need for testing personality models in realistic field settings.     

Aristotle,Kant, and …Facebook? A Look at the Implications of Social Media on Ethics

The purpose of this study was to explore if and how social media might come to bear on people’s understanding of ethics. Participants were asked to complete online surveys regarding social media interaction and respond to 14 scenarios depicting ethical dilemmas. Our results suggest that social media and people’s perceptions of ethics do share a relationship. Specifically, we found that people who reported being exposed to ethical violations on social media were more likely to find our unethical scenarios to be personally unacceptable, to be of lower ethicality, and to react negatively to the content. These findings suggest that mere exposure to ethical violations is enough to produce awareness in people regarding ethical issues, which carries significant implications for ethics education.     

应激对风险和社会决策的影响

应激是有机体在受到真实或者潜在的威胁刺激时所表现出来的全身性非特异性反应, 伴随着紧张和焦虑的心理体验, 交感神经系统的兴奋, 糖皮质激素分泌的增多以及脑干−边缘系统−前额叶神经环路的改变。应激对个体在风险决策行为中的风险寻求和风险回避倾向, 社会决策行为中的利己和利他倾向都会产生重要影响。策略使用异常、习惯化和自动化反应增强、反馈学习过程以及奖惩敏感性的改变是应激影响决策行为的认知基础; 应激激素的分泌, 及杏仁核、前额叶等在决策过程发挥重要作用的脑区活动的改变则为应激作用于决策行为的神经基础。未来研究应重点关注：应激的个体差异与应激对决策影响效应多样性的关系; 综合多种指标对应激进行测量; 考察应激的时序效应; 揭示个体的最佳应激水平; 加强对慢性应激影响决策以及应激对决策影响效应可逆性的研究; 揭示应激影响决策的神经机制。     

Certainty and Uncertainty: The Two Faces of the Hindsight Bias

“Hindsight Bias” is a person's tendency, after learning about the actual outcome of a situation or the correct answer to a question, to distort a previous judgment in the direction of this new information. In the literature, hindsight bias has been mostly discussed as an inevitable result of a “judgment under uncertainty.” We think that the hindsight bias is due to memorial as well as inferential processes: Whereas certainty about the recollection is memorial and concerns the recollective experience, certainty at the time of the judgment is inferential and concerns the individual's metaknowledge (“I know that I knew that”). In two experiments participants' feelings of certainty were measured indirectly (Koriat & Goldsmith, 1996) by giving participants the option of leaving those questions unanswered about which they felt uncertain. This free-report option was offered to half of the participants in the first estimate phase (concerning time of judgment) and to the second half in the memory phase (concerning the recollective experience). At the end of the session, participants were presented again with the questions they had skipped and were now required to answer them. This procedure allowed us to compare the amount of hindsight bias for the skipped, uncertain items to the spontaneously answered, certain ones. Both experiments demonstrated that the hindsight bias is a result of the interaction of both uncertainty and certainty.     

内、外归因个体自发特质推理与自发情境推理的比较

通过探测词再认范式的变式,考察了个体的自发特质推理与自发情境推理。实验1发现,当给个体呈现既隐含特质又隐含情境的行为句子时,个体既进行自发特质推理又进行自发情境推理。实验2表明,内、外归因的个体均能够进行自发特质推理和自发情境推理,但内归因个体的自发特质推理与自发情境推理无显著差异,而外归因个体的自发情境推理强于自发特质推理。     

知觉者与行为者贫富对自发特质推理的影响

本研究采用探测词再认范式,分3个研究考察了知觉者和行为者的贫富对个体自发特质推理的影响。研究1考察了知觉者贫富对自发特质推理的影响,结果表明富裕启动条件下的被试更可能进行自发特质推理。研究2考察了行为者贫富对自发特质推理的影响,结果表明被试更有可能对富人刻板一致的行为句子进行自发特质推理。研究3考察了知觉者和行为者贫富对自发特质推理的交互影响,结果发现仅富裕启动条件下的被试更可能对富人刻板一致句子进行自发特质推理。本研究为自发特质推理发生的灵活性提供了新证据。     

Do people treat missing information adaptively when making inferences?

When making inferences, people are often confronted with situations with incomplete information. Previous research has led to a mixed picture about how people react to missing information. Options include ignoring missing information, treating it as either positive or negative, using the average of past observations for replacement, or using the most frequent observation of the available information as a placeholder. The accuracy of these inference mechanisms depends on characteristics of the environment. When missing information is uniformly distributed, it is most accurate to treat it as the average, whereas when it is negatively correlated with the criterion to be judged, treating missing information as if it were negative is most accurate. Whether people treat missing information adaptively according to the environment was tested in two studies. The results show that participants were sensitive to how missing information was distributed in an environment and most frequently selected the mechanism that was most adaptive. From these results the authors conclude that reacting to missing information in different ways is an adaptive response to environmental characteristics.     

What is adaptive about adaptive decision making? A parallel constraint satisfaction account

There is broad consensus that human cognition is adaptive. However, the vital question of how exactly this adaptivity is achieved has remained largely open. Herein, we contrast two frameworks which account for adaptive decision making, namely broad and general single-mechanism accounts vs. multi-strategy accounts. We propose and fully specify a single-mechanism model for decision making based on parallel constraint satisfaction processes (PCS-DM) and contrast it theoretically and empirically against a multi-strategy account. To achieve sufficiently sensitive tests, we rely on a multiple-measure methodology including choice, reaction time, and confidence data as well as eye-tracking. Results show that manipulating the environmental structure produces clear adaptive shifts in choice patterns – as both frameworks would predict. However, results on the process level (reaction time, confidence), in information acquisition (eye-tracking), and from cross-predicting choice consistently corroborate single-mechanisms accounts in general, and the proposed parallel constraint satisfaction model for decision making in particular.