An experimental test of a game‐theoretical model of reciprocity

In this contribution the norm of reciprocity is defined as a basic internal motivation. Using formal tools of game theory, a model of social utility function is presented. The reciprocity model predicts that social actors should reciprocate costs and benefits they receive, even when there are costs in conforming to the norm. Hypotheses about actors' behavior, expectations and evaluations are derived from the model. The hypotheses were tested in an experimental situation, the reciprocity game, consisting of a prisoner's dilemma game (PD) followed by a dictator game (DG). The sample was composed of 74 Italian undergraduate students. In line with the model's predictions, the experimental results showed that participants reciprocate the behavior of the opponent in the PD. In the DG, if the opponent cooperated, participants gave back an almost equal share, whereas if the opponent defected, participants gave a minimal amount. These reciprocity effects are modulated by individual differences in the concern for reciprocity. Copyright © 2000 John Wiley & Sons, Ltd.     

L'intervention des explications causales internes en termes d'effort dans les stratégies d'autoprésentation et le jugement social : perspectives sociocognitives

This article pursues two aims. The first one is to propose an extension of the theory of the social norm of internality by studying the value of various types of internal and external causal explanations of reinforcements. A first study shows that students (n = 155) choose more effort-based explanations to explain spontaneously a success or a failure to an exam. A second study, realized with students placed in judge's position (n = 80), reveals that effort-based explanations are more appreciated than others explanations, regardless of the event desirability. The second aim of this article is to show that attributional approach and the theory of the social norm of internality are based on different definitions of social judgment and concern different psychological phenomena. A third study realized with students (n = 63) placed in judge's position shows that the effect of the type of explanations for explaining a success or a failure varies according to the nature of the judgment (approval/punishment, probability of success, competence and motivation).     

Habiletés phonologiques chez des enfants dysphasiques de GS et CP : étude comparative avec des enfants au développement langagier normal

The aim of this study was to investigate the deficit in phonological skills of pre-reader and beginning reader children with Specific Language Impairment (SLI). We compared their performances in different metaphonological tasks (a common unit detection task (syllable vs phoneme) and a phoneme deletion task) with those of children with Normal Language Development (NLD) of the same school level. Phoneme detection task is very difficult for all children in kindergarten. The performances of SLI children are poorer than those of NLD children for syllables and phonemes in first grade. The forced choice phoneme deletion tasks point out a specific difficulty for children with SLI to focus on the phonological properties of words when their attention must shift from content to form.     

吗啡行为及条件性行为敏感化效应及其个体差异

目的：考察吗啡处理下,大鼠行为敏感化及条件性行为敏感化效应及其个体差异性表现。方法：根据大鼠在初次抵达的新颖环境中水平活动量的高低,将大鼠划分为高反应大鼠（High responder, HR）和低反应大鼠（Low responder, LR）,应用自动监测大鼠活动箱,分别考察HR和LR大鼠在行为及条件性行为敏感化效应表达上的差异。结果：（1）连续5天吗啡给药,LR大鼠活动量显著升高,HR大鼠无此效应;（2）条件测试日（第6天）,给药与环境匹配大鼠,活动量较给药与环境非匹配组动物和对照组动物显著为高;此效应在HR和LR大鼠同时存在;（3）从给予吗啡到给予盐水,发现LR大鼠活动量显著下降,而HR大鼠活动量无显著改变。结论：在连续给药下,LR大鼠较HR大鼠,在行为敏感化效应的形成中,具有更为显著的效应,此效应为LR动物对吗啡更高的药物效应,而非条件效应所致,同时HR和LR大鼠都可以对吗啡条件性线索产生应答,产生条件性行为敏感化效应。     

目标取向和工作经验对绩效的效应

通过两个样本调查,对目标取向和工作经验量表进行了结构检验,并探讨了目标取向和工作经验对个体绩效的效应模式。结果表明：学习目标取向和工作经验定性成份与绩效间存在中等程度相关;在控制了人口统计学变量的效应后,学习目标取向对绩效具有显著的预测效应;工作经验定性成份与绩效间的关系受到学习目标取向缓冲,在学习目标取向低分组,工作经验定性成份对个体绩效更具预测力     

Individual differences in the acquisition of non‐linguistic audio‐visual associations in 5 year olds

Audio‐visual associative learning – at least when linguistic stimuli are employed – is known to rely on core linguistic skills such as phonological awareness. Here we ask whether this would also be the case in a task that does not manipulate linguistic information. Another question of interest is whether executive skills, often found to support learning, may play a larger role in a non‐linguistic audio‐visual associative task compared to a linguistic one. We present a new task that measures learning when having to associate non‐linguistic auditory signals with novel visual shapes. Importantly, our novel task shares with linguistic processes such as reading acquisition the need to associate sounds with arbitrary shapes. Yet, rather than phonemes or syllables, it uses novel environmental sounds – therefore limiting direct reliance on linguistic abilities. Five‐year‐old French‐speaking children (N = 76, 39 girls) were assessed individually in our novel audio‐visual associative task, as well as in a number of other cognitive tasks evaluating linguistic abilities and executive functions. We found phonological awareness and language comprehension to be related to scores in the audio‐visual associative task, while no correlation with executive functions was observed. These results underscore a key relation between foundational language competencies and audio‐visual associative learning, even in the absence of linguistic input in the associative task.     

印象形成中社会知觉信息效价冲突的认知控制效应

当个体信息与类别信息同时呈现时,个体的自我控制资源与信息效价产生交互作用,且共同影响他人印象形成的认知控制策略和信息加工深度。为进一步探究这一现象所产生的印象控制效应,采用自我控制资源损耗任务将96名被试随机分为高损耗组和低损耗组,并让他们完成内隐联想测验,以考察个体信息与类别信息的效价冲突时,他人印象控制策略如何受到自我控制资源与信息效价的双重影响。结果发现:(1)个体信息与类别信息的印象控制依赖于自我控制资源。(2)自我控制资源损耗与信息效价类型存在显著的交互作用。当个体损耗了较多的自我控制资源后,对效价冲突的个体信息与类别信息进行印象加工时,消极刻板印象的激活因受到这两类效价冲突信息的限制,只能依赖实时更新的面部表情信息,从而形成自下而上的反应性控制; 当个体损耗的自我控制资源较少时,对同样的个体信息与类别信息,不论效价相容或冲突,均能保持对消极刻板印象的自动激活,从而导致自上而下的主动性控制。     

寻求反馈能改善绩效吗?——反馈寻求行为与个体绩效关系的元分析

利用元分析方法探讨反馈寻求行为(FSB)与个体绩效的关系以明确其能否改善个体绩效。共有62篇实证研究纳入元分析, 被试总人数达15141人。结果表明：反馈寻求行为与个体绩效呈中等程度正相关(r = 0.329), 且与创新绩效的关系(r = 0.409)强于关系绩效(r = 0.302)和任务绩效(r = 0.258); 询问式反馈寻求行为(Inquiry FSB)与个体绩效及其分维度绩效的关系均强于监控式反馈寻求行为(Monitoring FSB)。文化背景和数据收集方式调节了反馈寻求行为与个体绩效的关系, 该关系在东亚文化背景下(r = 0.393)和截面同源数据中(r = 0.433)最强, 且在纵向配对数据中仍显著正相关(r = 0.154), 充分说明反馈寻求行为能改善个体绩效; 反馈寻求行为的测量工具、反馈源、非自评绩效的主客观性和被试类型的调节效应不显著。研究结果为反馈寻求行为对个体绩效的预测提供了较精确的估计, 并为反馈寻求行为的后续研究指引了方向。     

睡眠限制对认知功能的影响及其潜在作用机制

睡眠限制已然成为现代社会人们普遍面临的问题, 其对个体身心机能的影响备受研究者关注。众多研究表明, 睡眠限制会对注意功能、执行功能和长时记忆等不同认知领域的心理加工产生差异化影响, 且影响程度与任务类型、睡眠限制的严重程度、年龄和性别等因素相关。研究者们提出了4种主要的作用假说：唤醒假说、注意控制假说、警觉性假说以及前额皮层易感性假说。未来研究需要从关注个体间差异、使用动脉自旋标记灌注功能磁共振成像技术以及重视轻度睡眠限制的影响等角度进行深化和扩展。