Prolonged subjective duration near the hands: Effects of hand proximity on temporal reproduction

Psychonomic Bulletin & Review - It has been reported that human visual perception and attention are altered when the hands are nearby. Previous studies indicate that placing hands near stimuli...     

When does procedural justice influence perceived legitimacy? The role of standing uncertainty and group identification

Many empirical studies have shown that procedural justice is the key determinant of whether an individual perceives an authority figure as legitimate. However, based on relational models of procedural justice and the uncertainty management model, there is reason to believe that the association between procedural justice and perceived legitimacy may be stronger for individuals who are uncertain about their standing as group members (moderation); this interaction might predict group identification and, in turn, perceived legitimacy (mediation). We tested this mediated moderation model in two experiments (Studies 1a and 1b) and a field study (Study 2) using different operationalizations of standing uncertainty across studies. The results of Studies 1a and 1b demonstrated that the association between procedural justice and perceived legitimacy was stronger for participants with high (vs. low) standing uncertainty. Study 2 showed that group identification mediated the association between this interaction effect and perceived legitimacy. Together, the results of the mediated moderation analysis showed that procedural justice was positively associated with perceived legitimacy through high group identification when standing uncertainty was high. The theoretical contributions and practical implications of our findings are discussed.     

Individuality in coo calls of adult male golden snub-nosed monkeys (Rhinopithecus roxellana) living in a multilevel society

Animal Cognition - Vocal individuality is a prerequisite for individual recognition, especially when visual and chemical cues are not available or effective. Vocalizations encoding information of...     

儿童区分幻想和现实的发展特点及作用机制

幻想(Fantasy)是指向未来, 与个人愿望相联系的想象, 且不一定以客观规律为依据。现实(Reality)是存在于日常生活中, 或者与我们生活法则相一致的事物或现象。准确地区分幻想和现实有利于在保护儿童想象力的同时, 确保他们的人身安全。国内外研究发现, 儿童区分幻想和现实的能力随着年龄的增长而提高; 受外部(实验材料的情感色彩、人物和主题类型)和内部(个体情绪感知强度、经验)因素的影响; 语言、元认知、心理理论和认知神经等可能是儿童区分幻想和现实的作用机制。未来研究需探索各种作用机制在儿童年龄与区分幻想和现实能力之间可能的调节效应, 以及儿童混淆幻想和现实的认知神经。在此基础上, 进一步明确既保护儿童想象力又确保其人身安全的有效措施。     

群际偏差的进化：人类对暴力与疾病威胁的适应

内群体偏好与内群体贬低现象普遍存在于社会生活中, 但为何会存在这两种群际偏差的心理机制以及这两种群际偏差是否具有进化基础的问题一直没有得到解答。通过系统整理在暴力威胁和疾病威胁构成的生存压力下, 两种群际偏差遵循烟雾探测原则和功能弹性原则处理威胁线索的研究报告, 研究说明了两者虽然方向完全相反, 但却是同一威胁管理机制对特定的内外群体关系产生的不同反应, 具有进化的适应性, 支持其进化假说。     

材料呈现方式和复习与否对中文电子笔记学习学习效果的影响

笔记策略的“转换假说”指出：将听觉材料写下来比将视觉材料写下来的学习效果更好。本研究以此为基础,以104名大学生为被试,采用多元方差分析的方法,探讨了材料呈现方式和复习与否对拼音键入的中文电子笔记的即时和延时学习效果的影响。结果发现,电子笔记在视觉材料上比在听觉材料上的即时学习效果更优;在间隔一周后的延时重测中,复习后的延时学习效果显著优于不复习,但复习在视觉材料组和听觉材料组中的促进作用无显著差异。     

Event-related potential (ERP) evidence for the differential cognitive processing of semantic jokes and pun jokes

Brain-imaging studies report that separate neural correlates are associated with processing of different types of humorous materials. However, such evidence lacks temporal information. In this study, we examined the temporal dynamics of humour comprehension between two types of jokes: semantic (SEMs) and pun (PUNs) jokes, using electroencephalographic (EEG) techniques. Thirty SEMs and 30 PUNs were presented to 16 healthy subjects, and their EEG data were concurrently recorded. PUNs consequently showed a larger N400 amplitude than did SEMs, without a specified scalp site, which implies that PUNs induce greater surprise and semantic violation. Meanwhile, SEMs induced a larger P600-like amplitude at the posterior site, which implies that, in order to understand SEMs, higher working memory loads are needed to form novel associations and successfully frame-shift. A possible explanation is the differing logical mechanisms used to understand SEMs and PUNs: the former builds on semantic relationships, the latter on phonological causality.     

Words fail: Lesion-symptom mapping of errors of omission in post-stroke aphasia

Impaired object naming is a core deficit in post-stroke aphasia, which can manifest as errors of commission – producing an incorrect word or a non-word – or as errors of omission – failing to attempt to name the object. Detailed behavioural, computational, and neurological investigations of errors of commission have played a key role in the development of neurocognitive models of word production. In contrast, the neurocognitive basis of omission errors is radically underspecified despite being a prevalent phenomenon in aphasia and other populations. The prevalence of omission errors makes their neurocognitive basis important for characterizing an individual's deficits and, ideally, for personalizing treatment and evaluating treatment outcomes. This study leveraged established relationships between lesion location and errors of commission to investigate omission errors in picture naming. Omission error rates from the Philadelphia Naming Test for 123 individuals with post-stroke aphasia were analysed using support vector regression lesion-symptom mapping. Omission errors were most strongly associated with left frontal and mid-anterior temporal lobe lesions. Computational model analysis further showed that omission errors were positively associated with impaired semantically driven lexical retrieval rather than phonological retrieval. These results suggest that errors of omission in aphasia predominantly arise from lexical–semantic deficits in word retrieval and selection from a competitor set.     

Meeting the need or falling in line? The effect of laissez-faire formal leaders on informal leadership

We consider the utility of two contrasting theoretical perspectives in explaining how laissez-faire formal leaders and team member motivation to lead (MTL) influences informal leadership and team task performance. The first perspective, functional leadership theory, is the dominant lens used currently to understand informal leadership. However, we suggest that social learning theory offers a compelling alternative account. In a multiwave survey study of 344 members of 72 work teams, we find support for the social learning theory predictions that laissez-faire formal leaders are perceived by team members to engage in less modeling of effective leadership and as a result are negatively associated with informal leadership and team task performance. We do not find support for the functional leadership theory predictions that laissez-faire formal leaders are positively associated with team members’ informal leadership and team task performance, which would be due to an increased perceived need for leadership. The social learning effects are stronger for teams that are lower in member MTL and weaker for teams that are higher in member MTL. These results suggest social learning theory may be preferable to functional leadership theory for understanding informal leadership in teams.