人机交互中认知负荷变化预测模型的构建

设计模拟的人机交互实验, 分析持续作业过程中认知负荷在评估指标上的变化; 采用Elman神经网络和BP神经网络二种建模方法, 探索人机交互过程中认知负荷变化预测建模的构建方法。结果显示：持续作业中认知负荷在主任务反应时、主任务正确率、注视时间、注视次数4个评估指标上变化显著; 在心理努力、任务主观难度2个评估指标上变化不显著; Elman神经网络和BP神经网络两种预测模型可以对不同作业时间段认知负荷在评估指标上发生的变化进行预测; 再结合认知负荷的综合评估模型, 可实现对不同作业时间段个体认知负荷水平等级进行分析。     

价值观与行为的一致性争议

价值观与行为的一致性存在着争论, 相关的实证研究包括以下几种模式: 价值观直接预测行为; 生活方式、态度等中介变量的桥梁作用; 人格与情境等调节变量的影响作用。目标层次理论认为价值观与行为之间是由逐渐具体化的目标连接起来的; 建构水平理论认为心理距离影响价值观与行为的关系; 自我价值定向理论认为个人自我价值体系对行为具有定向作用; 新社会分析模型则认为价值观是人格的一个领域, 特质与价值观这两个平行的结构共同作用于行为。未来的研究方向可能表现为价值观词典的应用; 价值矛盾与行为决策关系的研究; 中国文化背景下的价值观与行为一致性的探索以及建立专门针对二者关系的理论模型等方面。     

类别使用的特征诊断效应

运用预备实验评定过的鱼轮廓图,考察了类别判断和特征预测这两种类别使用方式下的特征诊断效应。被试是48名大学生,学习材料是两类鱼的类别成员,在测验阶段,实验1判断新项目类别标签,实验2预测新项目的缺失特征。结果表明,类别判断条件下,单个特征诊断力加强和诊断性特征数量增加都对类别判断有促进作用;特征预测条件下,只有单个特征诊断力加强可以促进特征预测,诊断性特征数量增加无助于特征预测     

组织中管理者信任的前因机制——基于契约与LMX的实证分析

管理者信任是组织运作效率的重要影响因素。为了系统分析契约与领导成员交换(LMX)在组织内部对管理者信任的权变影响模式,本研究采用问卷调查的方法,对契约与LMX如何影响管理者信任的形成进行了研究。154名被试参加了调查,结果表明,契约与LMX的交互作用项对管理者信任的作用显著。进一步分析交互作用方向,结果表明:领导成员交换(LMX)在管理者信任形成中起到主导作用;而在双方LMX一般时,完备的契约可显著降低信任风险,促进管理者信任的形成。据此,我们建议管理者采用相应的权变策略建设组织内管理者信任。     

人-职务匹配、人-组织匹配对员工工作态度的效应机制研究

本研究采用结构方程建模方法检验了人与职务、组织匹配对员工工作满意感和组织承诺的效应,及“内部整合”与“人际预测”的中介作用。结果表明,人与职务、组织匹配对员工工作满意感和组织承诺有显著的积极效应,“内部整合”对这种效应起完全中介作用,而“人际预测”仅对“人-职务匹配”对员工工作满意感的效应起部分中介作用。研究为理解“人-环境匹配”对于员工工作态度的效应机制提供了理论框架和实证依据。     

A Question of Balance or Blind Faith?: Scientists’ and Science Policymakers’ Representations of the Benefits and Risks of Nanotechnologies

In recent years, in the UK and elsewhere, scientists and science policymakers have grappled with the question of how to reap the benefits of nanotechnologies while minimising the risks. Having recognised the importance of public support for future innovations, they have placed increasing emphasis on ‘engaging’ ‘the public’ during the early phase of technology development. Meaningful engagement suggests some common ground between experts and lay publics in relation to the definition of nanotechnologies and of their benefits and risks. However, views on nanotechnologies are likely to vary according to where actors stand in the technology production/consumption/assessment cycle. Drawing on data from a recent UK-based study, this article examines how scientists (‘upstream’ and ‘downstream’) and policymakers portray the benefits and risks of nanotechnologies, particularly as they relate to two major areas of predicted application, namely medicine/public health and environmental sustainability. The findings reveal that, in the main, scientists and science policymakers held a positive conception of nanotechnologies and see imminent applications, although they acknowledged particular risks, including adverse public reaction. While definitions of ‘benefit’ and ‘risk’ varied, most saw the benefits as outweighing the risks and believed that the risks could be adequately regulated once they were assessed. The difficulties of assessing risk, however, were acknowledged. The study raises a number of questions that will need to be addressed if regulations are to be developed that not only protect people’s heath and wellbeing and the environment but also engender public trust in nanotechnologies.

归类不确定情景下特征推理的综合条件概率模型

用大学生被试,通过三个实验探讨在集中呈现类别成员样本信息的归类不确定情景下的特征推理。实验结果表明,单纯的归类确定性程度和靶类别靶特征的代表性并不直接影响被试的特征推理,而是预测特征相对于目标特征的综合条件概率直接影响被试的特征推理;特征推理不是基于类别中介的间接推理,而是基于特征关联综合条件概率的直接推理。实验结果支持作者提出的预测特征综合条件概率模型。     

Born and raised to be a fraudster

Although a great deal of research has focussed on and continues to focus on fraud prevention and detection, there is still no reliable way to predict who will become a white‐collar criminal/fraudster. Significant benefits would result if and when this can be done. This paper recognizes that there are many common characteristics that exist among fraudsters and investigates whether fraud can be predicted based on the psychological, sociological, and environmental state of children throughout their upbringing. Research shows that children with a negative childhood develop negative habits, emotions, and mentalities, including disorders that can linger well into their adult lives. These negative characteristics can ruin relationships and possibly even influence an individual to commit fraud. This paper provides initial evidence regarding the potential significance of some childhood characteristics that may contribute to the likelihood that someone will become a white‐collar criminal. Given that no other similar research exists, this paper may help guide future researchers who are also attempting to solve this complex problem.     

Of Kids and Unicorns: How Rational Is Children's Trust in Testimonial Knowledge?

When young children confront a vast array of adults' testimonial claims, they should decide which testimony to endorse. If they are unable to immediately verify the content of testimonial assertions, children adopt or reject their informants' statements on the basis of forming trust in the sources of testimony. This kind of trust needs to be based on some underlying reasons. The rational choice theory, which currently dominates the social, cognitive, and psychological sciences, posits that trust should be formed on a rational basis, as a result of probabilistic assessments and utility-maximizing calculations. In this paper, the predictions stemming from the rational choice approach to trust are systematically compared with the empirical evidence from the field of developmental psychology on how children establish their trust in testimonial statements. The results of this comparison demonstrate an obvious inadequacy of the rational choice explanation of the emergence and development of children's testimonial trust, regardless of which form of trust rationality—weighting, threshold, or ordering—is examined. As none of the three forms of rationality of children's trust in testimony squares with the empirical data, this paper introduces a new version of trust rationality, adaptively rational trust. It explores the compatibility of the concept of adaptively rational trust with the recent empirical findings in the area of developmental psychology and addresses some avenues for future research on the rationality of testimonial trust.     

预期错误在恐惧记忆更新中的作用与机制

依据错误驱动的学习理论,行为预期结果与实际结果之间的不匹配即预期错误(Predictionerror,PE)是学习产生的驱动因素。作为显著性信息中的一种,预期错误和物理显著性、惊讶、新异性等存在信息加工阶段的不同,与记忆更新的关系也有差异。近年来,记忆再巩固干预范式(reconsolidation interference)被证明可用于人类条件性恐惧记忆的更新,其中记忆提取激活阶段所包含的预期错误起到了引发记忆“去稳定”、开启记忆再巩固的关键作用。在促进恐惧记忆更新的行为机制上,PE被认为是记忆去稳定的必要非充分条件。记忆提取必须包含适量的PE,但其引发的是记忆去稳定、消退还是中间状态,还需结合记忆本身性质确定。在促进恐惧记忆更新的神经机制上,杏仁核、导水管周围灰质(PAG)、海马均在PE探测和计算过程中具有重要作用;前额叶皮层(PFC)及其亚区在PE开启记忆再巩固过程中扮演了重要角色。上述过程又受到神经系统中特定神经递质的重要调节,尤其是多巴胺能和谷氨酸能。未来研究应进一步探索基于PE计算模型的量化研究,整合PE与其他边界条件的交互作用,考察不同类型显著性在记忆再巩固中的作用等;并亟...