关于小学生对应用题结构认知发展的初步研究(Ⅰ)

本报告分析了小学生对应用题的框架结构、情节结构和数量关系结构方面的认知发展过程,和介绍了实验教学促进发展的情况。     

听觉刺激对虚拟环境中空间压缩的影响

人们往往会低估虚拟环境中空间的距离(空间压缩)。早期研究发现视听刺激的不一致会改善空间压缩,但听觉刺激在其中的作用及其影响效果需进一步研究。本研究首先探究了听觉刺激的有无对空间压缩的影响,接着操控视听刺激之间的物物距离进一步探究其对空间压缩的影响和改善。研究发现听觉刺激以两种方式影响空间压缩：听觉刺激的存在可以改善空间压缩;空间压缩与视听刺激的物物距离负相关。研究建议为了改善空间压缩,视听刺激应当同时呈现且物物距离至少为1 m。     

Fragile promise: The role of justification in promise-breaking

People who consider themselves moral sometimes use self-serving justifications to rationalize their selfish behaviours. Previous studies have tested the role of ambiguity in justifying wrongdoings, but it remains unclear whether ambiguity also plays a role in justifying promise-breaking behaviour and whether heterogeneity exists. To investigate justification in promise-breaking, we introduced a new experimental paradigm called the card-guessing task and used hierarchical cluster analysis to classify participants based on their promise-breaking decisions in unambiguous and ambiguous conditions. Experiment 1 revealed three clusters of solutions: Cluster 1 always kept their promises (i.e., keepers); Cluster 2 only exploited the vague promises and broke their promises in the ambiguous condition (i.e., intermediates); Cluster 3 tended to take advantage of vague promises and broke their promises irrespective of ambiguity (i.e., breakers). Experiment 2 confirmed that participants in the three clusters differed in their norm-abiding preferences and social value orientations. Keepers were more altruistic and had a stronger sense of norm compliance than intermediates and breakers. In conclusion, our study demonstrates that self-serving justifications were more likely to be employed by people who are moderately sensitive to deviation from social norms, which has implications for strategic interventions and policy formulation concerning unethical behaviour.     

亲子依恋与儿童抑郁症状的关系：儿童对环境的生物敏感性的作用及父母差异

不良的亲子依恋是导致儿童抑郁症状的风险因素,但其对儿童的影响会因儿童对环境的生物敏感性不同而存在差异。为探究家庭中母子、父子依恋对儿童抑郁症状的影响及儿童生物敏感性(本文中采用迷走神经抑制作为指标)在其中的作用,本研究结合行为任务、问卷报告、生理测量等多种研究手段,招募150名学龄儿童(平均年龄8.64岁,63名女孩)参与研究。结果表明：(1)学龄儿童的母子依恋水平高于父子依恋水平。(2)高水平的母子依恋与父子依恋会同等程度地降低儿童的抑郁症状。(3)儿童对环境的生物敏感性对母子依恋影响儿童抑郁症状路径的调节作用显著,生理上对环境更敏感(高迷走神经抑制)的儿童更易得益于高母子依恋,表现出较低的抑郁水平;但同时,这类儿童在母子依恋较低时也更易表现出较高的抑郁水平。(4)儿童的生物敏感性对父子依恋影响儿童抑郁症状路径的调节作用不显著,高父子依恋对生物敏感性水平不同的儿童均存在有利影响。(5)在不同情境中测量的迷走神经抑制对亲子依恋影响儿童抑郁症状的调节作用模式相似,表现出跨情境一致的特点。本研究率先揭示儿童迷走神经抑制与亲子依恋对儿童抑郁症状的联合作用机制及父母角色差异。     

卡车驾驶员速度估计研究

用速度知觉测试仪,对251名男性卡车驾驶员在四种实验条件下的速度估计准确性进行了测量。结果发现：安全组卡车驾驶员的速度估计准确性优于事故组卡车驾驶员,两者在低速条件下差异不显著,高速条件下差异显著;事故组卡车驾驶员的高估次数高于安全组卡车驾驶员,低速条件下两者不显著.高速条件下差异显著;事故多发组与安全组卡车驾驶员的速度估计准确性在高速及低速长距离条件下差异显著;速度及距离对速度估计准确性有显著影响,且两者之间存在显著的交互作用;年龄对速度估计准确性无显著影响。     

图形和汉字视觉认知任务中的部分线索效应

给被试呈现一幅图的不完整信息作为线索会干扰被试对图形的辨认,这是一种部分线索效应。实验一的任务是对模糊图形的辨认,在轮廓相似组图形中,部分线索的干扰作用随呈现模糊级次数的增加而更加显著,但在轮廓非相似组图形中,模糊级呈现次数为２次和３次的情况下,也表现出了显著的部分线索效应。实验二在不完整汉字识别任务中进一步考察了部分线索效应,在事先学习的条件下,形状相似字组汉字的辨认表现出了显著的部分线索效应,而意义相似字组和随机字组汉字的辨认表现出了部分线索的促进作用。在事先不学习的条件下,随机字组和形状相似字组汉字的辨认表现出了显著的部分线索效应,而意义相似字组汉字的辨认没有表现出显著的部分线索效应。本研究用激活的观点对这些结果做出了合理的解释。     

测定光谱光效率的一些方法的比较

本文比较了一些有关测定光谱光效率函数的方法,概述了这些方法的各自特性及其优缺点。文章提请有关工作者注意:光谱光效率函数的各种测定方法还有从各方面继续深入探讨的必要。     

需求和接受的授权型领导匹配对下属工作结果的影响：情绪耗竭的中介作用

基于人-环境匹配理论和压力认知交互作用理论, 本文探讨了下属需求和接受的授权型领导匹配性对下属态度、行为和绩效的影响及情绪耗竭的中介作用。本文分别通过对150位领导与150位下属(研究1)、50位领导与243位下属(研究2)的配对样本开展两项多时点、多来源的问卷数据收集, 并采用跨层次多项式回归和响应面分析方法得出以下结论: (1)下属需求和接受的授权型领导失配会导致下属情绪耗竭; (2)相对于授权不足, 领导的过度授权更会导致下属情绪耗竭; (3)下属需求和接受的授权型领导匹配性通过作用于下属情绪耗竭进而影响下属对领导的满意度、组织公民行为和工作绩效。     

Action Generalization Across Group Members: Action Efficiency Matters

Actions are usually generalized among social group members. Importantly, the efficiency of an action with respect to achieving an external target determines action understanding, and it may have different degrees of social relevance to social groups. Thus, this study explored the role of action efficiency in action generalization. We used computer animations to simulate actions in social groups initiated by visual action cues or category labels, and we measured differences in response times between identifying actions that were and were not consistent with group members, without explicit requirements regarding generalization. It was found that in both visually introduced and explicitly labeled social groups, when the group members acted inefficiently toward the external object, perceivers identified group-consistent actions faster than group-inconsistent actions, indicating that the exemplars' common inefficient actions are generalized to the unknown ingroup member, accordingly facilitating the identification of expected consistent inefficient action (Experiment 1). As this effect was not present when removing social group cues, it was determined to be specific to social groups (Experiment 2). Importantly, such generalization was not observed when the identical action was deemed efficient toward the external object (Experiment 3) and was specific to the demonstration of the action being completed by multiple group members rather than being repeated twice by one group member, supporting the group-based inference and ruling out the possibility of the increased memorability of inefficient actions leading to more generalization relative to efficient actions (Experiment 4). Therefore, the efficiency of an action bounds the generalization of the action across social group members through a process that is spontaneous and implicit. This constrained action generalization may be due to inefficient actions being represented as culture-specific conventional forms.