工作反刍及其“双刃剑”效应

工作反刍指在没有要求其出现的情境下, 有意识的、重复发生的工作方面的相关想法, 分为工作相关情感反刍与工作相关问题解决沉思两个维度。工作反刍对个体健康、工作及幸福感的影响有“双刃剑”效应。持续性认知理论、压力认知激活模型与认知资源视角理论, 可以解释该效应的内在机制。未来研究应分析影响双刃剑效应的边界条件, 寻求减少消极效应、增加积极效应的途径, 拓展其双刃剑效应心理机制的分析视角和该效应的作用层面。     

社会认知神经科学——一个很有前途的交叉学科

该文介绍了近年兴起的一门交叉学科——社会认知神经科学,着重阐述了它强调在社会、认知与脑神经等三个层面的交互作用上去理解心理现象。作者指出,东方亚洲人与西方人在知觉、注意、认知和人格上的差别都是十分成熟的,可以立即开展社会认知神经科学探索的问题。     

时间感知在跨期决策中的作用——时间决策模型的新探索

“时间”是跨期决策的“必需品”, 人们感知到的延迟时间决定跨期决策的结果。近年来, 研究者发现“时间长度感知”、“时间资源感知”和“时间框架感知”是时间感知作用于跨期决策的主要方式。时间感知的神经作用机制包含微观层面和宏观层面两种。“对数/指数时间折扣模型”、“感知时间基础模型”及“多模态漂移扩散模型”解释了时间感知的作用方式。然而, 现有理论模型还存在诸多局限, 主要包括“长短时距预测偏差”和“实际决策与预期决策偏差”两个方面。因此, 深入探讨时间感知影响跨期决策的基本方式, 分析现有理论模型的局限性并提出整合的机制框架具有十分重要的意义。未来研究亟需进一步整合时间感知的理论模型, 开展脑机制与应用方面的研究, 从深层揭露时间感知的作用本质, 帮助个人与社会更理性地决策。     

汉—英并列双语者图片命名的重复启动效应

使用图片命名的重复启动范式来考察同一语种内和不同语种间条件下图片的重复呈现对词汇生成的启动效应。结果表明,语种内重复启动显著大于语种间重复启动,汉、英语种内重复启动效应无显著差异;语种间条件下两种语言间的重复启动存在不对称性,汉语—英语的启动大于英语—汉语的启动。实验结果支持词汇/概念分布模型。     

组织中个体主动性行为“利与弊”

个体主动性行为是组织中个体主动做出的面向未来和面向变革的工作行为, 近年来成为组织行为研究领域的重要议题。从现有研究来看: (1)在研究主题上, 多数研究发现了个体主动性行为可以带来正向结果, 个别学者也注意到了个体主动性行为的代价; (2)在分析视角上, 主要包括个体主动性行为对个体层面和组织情境层面的正向与负向影响; (3)在理论机制上, 个体主动性行为的“利弊”效应可用优势互补理论、自我决定理论和归因理论来解释。未来研究可着重进行以下理论整合: (1)从个体主动性行为类型出发, 基于智慧主动性的视角揭示其内在机制; (2)从主动性行为者和观察者特征两面性的视角, 实证探讨其背后机理; (3)从主动性行为主客体特征的发展视角进行动态研究。     

“有声有色”的触觉体验：来自多感觉通道整合的线索

虚拟现实技术通过提供视觉、听觉和触觉等信息为用户创造身临其境的感知体验, 其中触觉反馈面临诸多技术瓶颈使得虚拟现实中的自然交互受限。基于多感官错觉的伪触觉技术可以借助其他通道的信息强化和丰富触觉感受, 是目前虚拟现实环境中优化触觉体验的有效途径。本文聚焦于触觉中最重要的维度之一——粗糙度, 试图为解决虚拟现实中触觉反馈的受限问题提供新思路。探讨了粗糙度感知中, 视、听、触多感觉通道整合的关系, 分析了视觉线索(表面纹理密度、表面光影、控制显示比)和听觉线索(音调/频率、响度)如何影响触觉粗糙度感知, 总结了当下调控这些因素来改变粗糙度感知的方法。最后, 探讨了使用伪触觉反馈技术时, 虚拟现实环境中视、听、触觉信息在呈现效果、感知整合等方面与真实世界相比可能存在的差异, 提出可借鉴的改善触觉体验的适用方法和未来待研究的方向。     

大道至“简”：极简主义消费内涵解构与理论阐释

随着经济社会的不断发展与物质生活的日益丰富, 一股消费“清流”——极简主义消费愈来愈受到学界和业界的共同关注。极简主义消费是人们出于社会意识或个人理念而自发采取的一种“从简”式消费行为, 覆盖个人、社会和自然各个层面。受人口变量、心理特质、情境线索和宗教文化等因素驱动, 极简主义消费对个体心理健康与行为决策产生重要影响。基本价值理论、自我决定理论、需求层次理论和自我调节理论是认识和理解极简主义消费形成路径与影响机制的重要理论视角。未来研究可进一步厘清极简主义消费的构念与维度内涵, 采用科学流程开发测量工具, 深化本土化和跨文化研究, 并从多元理论视角, 综合运用不同实证方法, 深入探索其前因后效、心理机制和边界条件。     

手势认知功能研究的新视角：“空间化”手势假设

人类在说话或思考的时候常常伴随着手势。手势是在认知加工或交流过程中自动产生的, 具有表征性, 同时, 手势能够影响人类的认知加工。尽管研究者对手势的概念界定各有侧重, 但普遍认为手势不同于直接行动, 具有认知功能。手势认知功能的代表性理论模型有词汇索引模型、信息打包假设、表象保持理论、语义特殊性假设和嵌入/延展观。根据手势认知功能研究中主要自变量的不同, 可以把手势认知功能分成三种不同的研究范式, 即允许-限制手势的研究范式、侧重手势模式改变的研究范式、侧重情境改变的研究范式。今后值得关注的研究方向除了深入探讨手势认知功能的神经机制、加强对手势认知功能的干预研究外, 提出了建立更具解释力的手势认知功能的理论模型——“空间化”手势假设。     

行为公共管理学视角下公共决策的社会许可机制：“一提两抑”

公共管理的本质是公共决策。“公共决策的社会许可”指当地民众对于公共决策的持续接受和支持程度, 是公共决策合法性的基石。本研究借助“行为公共管理学”的理论视角, 通过两个调查实验(N = 354 + 354), 一个现场调查(N = 520), 全面考察公共决策透明(过程透明和内容透明)与社会许可之间的因果关系, 进而明确这一关系的作用边界。结果发现：1) 决策过程透明与内容透明正向影响社会许可; 2) 政府信任调节决策内容透明与社会许可的关系; 3) 结果依赖调节两类透明与社会许可的关系。基于这些结果, 作者总结出正性的“决策透明效应”以及“谨慎的不介意”和“有选择的忽视”之双缓冲作用, 即“一提两抑”, 以更好地理解公共决策的社会许可机制。     

“激将法”会激发还是打击员工?感知能力不被领导信任的“双刃剑”效应

感知能力不被领导信任是信任研究的重要内容。已有研究普遍认为感知不被领导信任会对员工的自我产生不利影响。相反, 传统领导方式“激将法”则认为领导的不信任可以刺激员工展现更好的自我。为了解释上述矛盾, 本研究基于自我评价理论和心理逆反理论, 采用实验研究和多源多时间点问卷调查研究方法, 探讨了感知能力不被领导信任对员工自我的“双刃剑”效应及边界条件。研究结果表明, 当员工感知领导能力较强时, 感知能力不被领导信任会通过降低员工的工作效能感削弱员工的工作努力和绩效表现; 当员工感知领导能力较弱时, 感知能力不被领导信任会通过增强员工证明自我能力动机提升员工的工作努力和绩效表现。     

Perceptions of social influence when messages favour ‘us’ versus ‘them’: A closer look at the social distance effect

The third‐person effect (TPE) is the tendency for individuals to assume that persuasive communications have a stronger effect on other people than on themselves. In turn the social distance effect (SDE) is the tendency for this TPE to increase with the psychological distance between self and comparator. Two experiments showed that the SDE is moderated by whether the message favours the ingroup or the outgroup, holding all other content constant. In Study 1, male and female participants read a message arguing that either women were better drivers than men or vice versa, and then indicated how much they thought themselves, ingroup members, outgroup members and society would be influenced. The results indicate that for the pro‐outgroup message the SDE was found. However, for the pro‐ingroup message the SDE was reversed with ingroup members perceived as more influenced than all other targets, including the self. Study 2 replicated this finding using minimal groups, which eliminated the effects of prior stereotypes about male and female drivers. Across both studies the self was perceived as relatively invulnerable to influence regardless of message bias. Copyright © 2006 John Wiley & Sons, Ltd.     

Recency effects in delayed recall of mouthed stimuli

Auditory presentation leads to greater recency effects in recall than does visual presentation. This phenomenon (the modality effect) is found in both free and serial recall and in both immediate and delayed recall. Silent mouthing of visually presented stimuli also leads to enhanced recency effects in immediate serial recall. Two experiments reported here extend the generality of the mouthing effect by demonstrating that enhanced recency effects of mouthed stimuli occur in delayed serial and free recall. These results are inconsistent with theories that attribute the modality effect to a purely auditory sensory memory.     

Two types of serial dependence in visual working memory

Stimulus representations in working memory depend on memory traces of past stimuli both from previous trials and from the current trial. However, it is unclear whether the same or different mechanisms underlie this serial dependence across and within trials. We directly contrasted estimates of bias for pairs of immediately successive stimuli across and within trials. In each trial, participants memorized two consecutive motion direction stimuli (S1 and S2) and after a short delay were cued to report one of them. We found serial dependence across trials: The current S1 was attracted towards the preceding S2 when the latter had been cued for report. In contrast, within the same trial S2 was repulsed from S1. In addition, repulsion within a trial occurred for a broader range of motion direction differences between stimuli than attraction across trials. A second experiment in which 25% of trials did not require a response demonstrated that across‐trial attraction did not depend on whether the previous S2 actually had to be reported. Our findings provide evidence for two types of serial dependence operating across and within trials. They support the notion of different mechanisms integrating or segregating current from similar past memory contents depending on their task relevance.     

Voluntary Attention Enhances Contrast Appearance

ABSTRACT— Voluntary (endogenous, sustained) covert spatial attention selects relevant sensory information for prioritized processing. The behavioral and neural consequences of such selection have been extensively documented, but its phenomenology has received little empirical investigation. We asked whether voluntary attention affects the subjective appearance of contrast—a fundamental dimension of visual perception. We used a demanding rapid serial visual presentation (RSVP) task to direct endogenous attention to a given location and measured perceived contrast at the attended and unattended locations. Attention increased perceived contrast of suprathreshold stimuli and also improved performance on a concurrent orientation discrimination task at the cued location. We ruled out response bias as an alternative account of the pattern of results. Thus, this study establishes that voluntary attention enhances perceived contrast. This phenomenological consequence links behavioral and neurophysiological studies on the effects of attention.     

Perceptual congruency of audio-visual speech affects ventriloquism with bilateral visual stimuli

Many studies on multisensory processes have focused on performance in simplified experimental situations, with a single stimulus in each sensory modality. However, these results cannot necessarily be applied to explain our perceptual behavior in natural scenes where various signals exist within one sensory modality. We investigated the role of audio-visual syllable congruency on participants' auditory localization bias or the ventriloquism effect using spoken utterances and two videos of a talking face. Salience of facial movements was also manipulated. Results indicated that more salient visual utterances attracted participants' auditory localization. Congruent pairing of audio-visual utterances elicited greater localization bias than incongruent pairing, while previous studies have reported little dependency on the reality of stimuli in ventriloquism. Moreover, audio-visual illusory congruency, owing to the McGurk effect, caused substantial visual interference on auditory localization. Multisensory performance appears more flexible and adaptive in this complex environment than in previous studies.     

抑郁症人群的心境一致性认知偏向

心境一致性认知偏向指的是抑郁病人的认知加工偏向负性情绪效价, 简称认知偏向。大量行为学、电生理学以及脑成像学的研究显示该认知偏向主要包括知觉偏向、注意偏向、记忆偏向以及解释偏向。该认知偏向以加工偏向负性、积极偏向缺失以及认知控制受损为特点, 且是杏仁核等边缘系统对负性信息过度激活、纹状体对正性信息激活不足以及额区激活模式异常三个相应脑机制协同作用的产物。目前此领域存在各认知偏向之间联系不清楚、认知偏向和抑郁症的因果关系难以确定以及各研究结果不一致等有待回答的问题, 这些重要问题值得引起该领域未来研究者的注意。     

Automatic auditory disambiguation of visual awareness

Multisensory integration can play a critical role in producing unified and reliable perceptual experience. When sensory information in one modality is degraded or ambiguous, information from other senses can crossmodally resolve perceptual ambiguities. Prior research suggests that auditory information can disambiguate the contents of visual awareness by facilitating perception of intermodally consistent stimuli. However, it is unclear whether these effects are truly due to crossmodal facilitation or are mediated by voluntary selective attention to audiovisually congruent stimuli. Here, we demonstrate that sounds can bias competition in binocular rivalry toward audiovisually congruent percepts, even when participants have no recognition of the congruency. When speech sounds were presented in synchrony with speech-like deformations of rivalling ellipses, ellipses with crossmodally congruent deformations were perceptually dominant over those with incongruent deformations. This effect was observed in participants who could not identify the crossmodal congruency in an open-ended interview (Experiment 1) or detect it in a simple 2AFC task (Experiment 2), suggesting that the effect was not due to voluntary selective attention or response bias. These results suggest that sound can automatically disambiguate the contents of visual awareness by facilitating perception of audiovisually congruent stimuli.     

视听刺激突显性对视觉主导效应的影响

本研究使用空间任务-转换范式,控制视、听刺激的突显性,探讨自下而上注意对视觉主导效应的影响。结果表明视、听刺激突显性显著地影响视觉主导效应,实验一中当听觉刺激为高突显性时,视觉主导效应显著减弱。实验二中当听觉刺激为高突显性并且视觉刺激为低突显性时,视觉主导效应进一步减弱但依然存在。结果支持偏向竞争理论,在跨通道视听交互过程中视觉刺激更具突显性,在多感觉整合过程中更具加工优势。     

Prioritization to visual objects: Roles of sensory uncertainty

Two hypotheses, attentional prioritization and attentional spreading, have been proposed to account for object-based attention. The attentional-prioritization hypothesis posits that the positional uncertainty of targets is sufficient to resolve the controversy raised by the competing attentional-spreading hypothesis. Here we challenge the sufficiency of this explanation by showing that object-based attention is a function of sensory uncertainty in a task with consistent high positional uncertainty of the targets. In Experiment 1, object-based attention was modulated by sensory uncertainty induced by the noise from backward masking, showing an object-based effect under high as compared to low sensory uncertainty. This finding was replicated in Experiment 2 with increased task difficulty, to exclude that as a confounding factor, and in Experiment 3 with a psychophysical method, to obtain converging evidence using perceptual threshold measurement. Additionally, such a finding was not observed when sensory uncertainty was eliminated by replacing the backward-masking stimuli with perceptually dissimilar ones in Experiment 4. These results reveal that object-based attention is influenced by sensory uncertainty, even under high positional uncertainty of the targets. Our findings contradict the proposition of attentional spreading, proposing instead an automatic form of object-based attention due to enhancement of the perceptual representation. More importantly, the attentional-prioritization hypothesis based solely on positional uncertainty cannot sufficiently account for object-based attention, but needs to be developed by expanding the concept of uncertainty to include at least sensory uncertainty.     

Partial masking in electrocutaneous sensation: a model for sensation matching, with applications to loudness recruitment

A model for partial masking and other threshold-elevation effects is presented in the context of a sensation-matching paradigm. The model is applied to an electrocutaneous experiment in which the subjects adjusted stimulus intensity on the right-hand fingertip to match sensation levels of standard stimuli presented to the left fingertip. Concurrent mechanical stimulation on the right fingertip masked sensation magnitude in a way consistent with the model. Similarities between this tactile masking effect and analogous auditory phenomena are explored. When applied to loudness matching, the model describes the general shape of loudness contours and it shows that the steep slopes observed in auditory masking and "recruitment" can be a consequence of a threshold shift alone, without a supranormal growth in loudness. The model also shows that a small response bias can distort plots of sensation matching, leading to the suggestion that some varieties of loudness recruitment may not have a sensory basis.