道德感动的情绪效价特征:生理研究的证据

深入讨论道德感动的情绪效价特征,采用MP150多导生理记录仪测量个体在感动、积极、消极三种状态下心电、呼吸、皮电的自主神经系统生理心理指标并探讨其差异.结果 发现:感动状态下的皮电水平显著高于消极状态下的皮电水平,而与积极状态下的皮电水平不存在显著差异;感动、消极、积极三种状态下的心电、呼吸指标均不存在显著差异.结论:...     

认知重评的创造性对负性情绪调节的影响

以轻度负性图片为实验材料,采用自发性和指导性的认知重评策略,结合情绪的主观评定和生理指标,考察认知重评的创造性对负性情绪调节的影响,以及特质焦虑是否在其中起调节作用。结果发现：(1)自评和他评的认知重评创造性与情绪调节有效性呈显著正相关;(2)相比低创造性的认知重评,高创造性的认知重评对负性情绪的调节效果更好,并伴随着适应性的生理反应,皮电和心率显著下降;(3)相比低特质焦虑个体,高特质焦虑个体更容易体验到高负性情绪,但经过认知重评后两者的情绪调节效果无显著差异。结果表明,创造性认知重评促进负性情绪调节,特质焦虑在创造性认知重评与负性情绪调节之间不起调节作用。结果支持认知重评的创造性重构理论。     

认知评价对主观情绪感受和生理活动的作用

围绕认知评价对情绪的作用, 针对传统认知评价实验方法的缺陷, 本研究改进认知评价的操作方法, 以情绪片段为实验材料, 以事先的评价背景替代与观看同步的评价策略, 以生理指标与情绪自评反映情绪变化, 考察41名大学生的认知评价对负性情绪的影响。结果发现, 持有利于情绪调节评价的个体, 负性情绪感受降低, 皮肤电反应减弱, 但心率无变化。研究表明, 认知评价影响个体的主观情绪体验, 并在一定程度上抑制负性情绪所致的生理唤起的增高。     

追踪作业中几种心理负荷评估指标敏感性的研究

本研究在模拟追踪作业情境下 ,对主任务绩效测定、主观评定和若干生理测量在心理负荷评估中的敏感性进行了实验。实验采用重复测量的被试者内设计 ,2 0名被试 (男女各半 )在六档负荷下分别从事五分钟追踪作业。所选用的指标有追踪作业平均误差距离、追踪警告次数、主观负荷评定、心率、心率变异和血压。结果发现 :1主任务绩效在评估追踪作业心理负荷中具有最高的敏感性 ,主观评定次之 ,心率变化率和心率变异变化率也随负荷变化 ,血压指标随负荷变化的趋势不明显 ;2除血压指标外 ,其余各指标之间均存在明显的相关 ,这提示它们在评估追踪作业心理负荷中具有较大的可靠性。     

负性情绪调节中认知重评和分心策略的作用:ERPs研究

采用事件相关电位技术,考察了认知重评和分心两种情绪调节策略对负性情绪体验和脑电活动的影响。结果发现,认知重评后被试的负性情绪体验强度和LPP波幅(300~1300ms)比简单注视条件下低;分心后被试的负性情绪体验强度比简单注视条件下低,但LPP波幅显示比简单注视条件下高。这说明认知重评和分心对负性情绪体验和脑电活动的影响不同,负性刺激再次呈现时认知重评优于分心策略的调节。该研究为认知重评和分心的比较研究提供了神经电生理学方面的证据。     

恋人亲密情景下的回避型与安全型依恋个体情绪调节电生理差异

本研究采用事件相关电位(ERP)技术,通过测量由视觉诱发的脑电成分晚正成分波(LPP)来比较回避型个体与安全型个体在恋人亲密情景下的情绪调节策略,即认知重评和表达抑制的电生理特征上的差异。实验结果:在恋人亲密情景下,较之自发观看条件,安全型个体使用认知重评下调时产生较小的LPP波幅,使用表达抑制下调于晚期产生较大的LPP波幅。回避型个体使用表达抑制下调时产生较小的LPP波幅。结果表明:(1)安全型个体使用认知重评和回避型使用表达抑制均能有效持久的下调积极情绪。(2)回避型个体使用表达抑制和安全型个体使用认知重评一样在下调积极情绪早期发挥重要作用。本实验结果从时间进程的角度拓展了以往关于不同依恋类型个体情绪调节机制的研究。     

公平偏好的电生理测量：来自脑电、皮肤电和心电的证据

研究发现，人们普遍具有追求公平的偏好，即人们在追求个人收益时也会关注收益分配的公平性。随着电生理技术的发展，越来越多的研究者采用电生理技术对公平偏好进行深入探讨。本研究从脑电、皮肤电、心电等方面梳理公平偏好的电生理机制。脑电的研究发现，公平偏好相关的脑电主要涉及反馈相关负波和P300；皮肤电的研究发现，相比于公平分配，个体在不公平分配情况下其皮肤电的激活水平更高；心率的研究发现，相比于公平分配，个体遭遇不公平分配时其心率降低。研究公平偏好电生理机制有助于更深入地揭示公平偏好的产生根源与形成过程。未来可从公平偏好电生理的整合研究、公平偏好的脑成像与电生理的整合性探索，以及拓展公平偏好电生理的外部效度和研究范式等方面展开进一步探究。     

心理负荷多种评价指标的比较

本研究通过两个实验,分别对被试从事监控任务和追踪任务时的心理负荷进行测量,从而考察了几种测量指标的变化规律,结果发现,把主观任务难度作为联系两个不同任务的因子,对两个任务各心理负荷测量作综合分析,多数指标变化随负荷程度呈有规律的趋势。(1)主任务测量评价主任务是否超负荷较为有效,而对于非超负荷任务的负荷变化,辅助作业测量较为敏感。(2)心率和血压变化与心理负荷呈近似倒 U 型关系。A 型行为模式个体的心率变化与别的个体的心率变化存在着实质性的模式差异。     

反馈相关负波与社会关系认知

反馈相关负波(feedback-related negativity, FRN)是人类进行结果评价时诱发的一个重要的脑电负成分, 出现在反馈刺激后200~300ms间。作为社会认知研究的可视化指标和工具, 它在社会关系认知中有着十分重要的作用。研究从社会关系与反映并表征社会关系的社会规范两方面阐述了反馈相关负波在社会关系认知中的作用。前者着重阐述了反馈相关负波在作为独立个体所扮演的社会角色和人际关系中的作用, 后者主要介绍了反馈相关负波在分配公平和责任规范中的作用。未来研究需进一步联合其他脑电成分(如P300), 采用更严密的实验设计和研究范式来探讨不同人际亲密度个体在责任分摊过程中的认知神经过程及其在独立担责情况下责任绝对额度对其结果评价和社会关系认知的影响。     

不同类型音乐对悲伤情绪舒缓作用的EEG研究

该研究采用EEG法探究音乐对悲伤情绪舒缓作用。选取中国古典、流行、摇滚及班得瑞音乐及悲伤影片。播放影片诱发悲伤情绪后,用音乐进行舒缓,同步采集脑电,分析得脑电功率谱(PS)及重心频率(GF)。结果表明,影片显著降低了GF及α频段PS;古典音乐GF最高,且诱发的α段PS最高,摇滚乐最低;脑对音乐加工的性别差异显著,半球差异不显著;主观体验悲伤度与α波PS显著负相关。所选音乐均具情绪舒缓作用,中国古典音乐最佳;α波PS,可作为反映悲伤-快乐情绪体验变化的脑电指标。     

More than a feeling: Emotional cues impact the access and experience of autobiographical memories

Remembering is impacted by several factors of retrieval, including the emotional content of a memory cue. Here we tested how musical retrieval cues that differed on two dimensions of emotion—valence (positive and negative) and arousal (high and low)—impacted the following aspects of autobiographical memory recall: the response time to access a past personal event, the experience of remembering (ratings of memory vividness), the emotional content of a cued memory (ratings of event arousal and valence), and the type of event recalled (ratings of event energy, socialness, and uniqueness). We further explored how cue presentation affected autobiographical memory retrieval by administering cues of similar arousal and valence levels in a blocked fashion to one half of the tested participants, and randomly to the other half. We report three main findings. First, memories were accessed most quickly in response to musical cues that were highly arousing and positive in emotion. Second, we observed a relation between a cue and the elicited memory’s emotional valence but not arousal; however, both the cue valence and arousal related to the nature of the recalled event. Specifically, high cue arousal led to lower memory vividness and uniqueness ratings, but cues with both high arousal and positive valence were associated with memories rated as more social and energetic. Finally, cue presentation impacted both how quickly and specifically memories were accessed and how cue valence affected the memory vividness ratings. The implications of these findings for views of how emotion directs the access to memories and the experience of remembering are discussed.     

Effects of hedonic valence and physiological arousal on emotion: A comparison of two theoretical perspectives

Two theoretical perspectives concerned with how one emotional state may influence a subsequent one were examined. Zillmann's (1979) excitation transfer theory suggests that undetected residual arousal from a first state will transfer and intensify a subsequent state—regardless of the first state's hedonic valence. Baron's (1977) incompatible response model, on the other hand, suggests that the hedonic valence of an earlier state will affect the experience of a second state and that this effect will be strongest when the two states are temporally close. The results of this investigation support the incompatible response model but not the excitation transfer model. Unrecognized residual arousal from a prior state failed to affect subjects' second emotional state, although the hedonic valence of the prior state did affect the final emotional state when the second state was induced immediately after the first. All emotional states, although they may be equally arousing, do not affect subsequent emotion in an identical manner. When two emotional states are induced in quick succession, the hedonic valence of the prior state plays an important role in determining the intensity of the subsequent emotional state.     

The importance of identifying underlying process abnormalities in alexithymia: Implications of the three-process model and a single case study illustration

We present an in-depth case study of a rare individual (whom we will refer to as “Jane”) who reported an inability to experience emotion. Jane completed a range of assessments measuring alexithymia, emotional awareness, and emotion recognition ability. She, along with 22 control participants, also underwent skin conductance (SC) measurement and facial electromyography (EMG) during exposure to affective images, and self reported the valence/arousal of their responses to those images. Jane scored high on alexithymia and low on emotional awareness; yet she performed well on emotion recognition measures and showed a typical pattern of valence ratings. Her SC responses and subjective arousal ratings were atypically low, and some of her EMG responses were also atypical. Jane’s deficit profile highlights the dissociability of self-focused emotional awareness and other-focused emotion recognition ability, as well as the dissociability between the generation and representation of valence and arousal (with both subjective and objective measures).     

Hemispheric asymmetry in the processing of negative and positive words: A divided field study

Research on the lateralisation of brain functions for emotion has yielded different results as a function of whether it is the experience, expression, or perceptual processing of emotion that is examined. Further, for the perception of emotion there appear to be differences between the processing of verbal and nonverbal stimuli. The present research examined the hemispheric asymmetry in the processing of verbal stimuli varying in emotional valence. Participants performed a lexical decision task for words varying in affective valence (but equated in terms of arousal) that were presented briefly to the right or left visual field. Participants were significantly faster at recognising positive words presented to the right visual field/left hemisphere. This pattern did not occur for negative words (and was reversed for high arousal negative words). These results suggest that the processing of verbal stimuli varying in emotional valence tends to parallel hemispheric asymmetry in the experience of emotion.     

Hemispheric asymmetry in the processing of negative and positive words: a divided field study

Research on the lateralisation of brain functions for emotion has yielded different results as a function of whether it is the experience, expression, or perceptual processing of emotion that is examined. Further, for the perception of emotion there appear to be differences between the processing of verbal and nonverbal stimuli. The present research examined the hemispheric asymmetry in the processing of verbal stimuli varying in emotional valence. Participants performed a lexical decision task for words varying in affective valence (but equated in terms of arousal) that were presented briefly to the right or left visual field. Participants were significantly faster at recognising positive words presented to the right visual field/left hemisphere. This pattern did not occur for negative words (and was reversed for high arousal negative words). These results suggest that the processing of verbal stimuli varying in emotional valence tends to parallel hemispheric asymmetry in the experience of emotion.     

Differential effects of arousal in positive and negative autobiographical memories

Autobiographical memories are characterised by a range of emotions and emotional reactions. Recent research has demonstrated that differences in emotional valence (positive vs. negative emotion) and arousal (the degree of emotional intensity) differentially influence the retrieved memory narrative. Although the mnemonic effects of valence and arousal have both been heavily studied, it is currently unclear whether the effects of emotional arousal are equivalent for positive and negative autobiographical events. In the current study, multilevel models were used to examine differential effects of emotional valence and arousal on the richness of autobiographical memory retrieval both between and within subjects. Thirty-four young adults were asked to retrieve personal autobiographical memories associated with popular musical cues and to rate the valence, arousal and richness of these events. The multilevel analyses identified independent influences of valence and intensity upon retrieval characteristics at the within- and between-subject levels. In addition, the within-subject interactions between valence and arousal highlighted differential effects of arousal for positive and negative memories. These findings have important implications for future studies of emotion and memory, highlighting the importance of considering both valence and arousal when examining the role emotion plays in the richness of memory representation.     

情绪状态对大学生条件推理的影响

采用不同情绪效价的电影片断诱发大学生不同的情绪,并运用眼动仪器记录条件推理的过程和结果,探讨了不同情绪状态对条件推理的影响状况。实验采用3（情绪组别：积极情绪、消极情绪、中性情绪）×4（推理形式：MP、DA、AC、MT）的混合实验设计。研究结果发现,中性情绪状态下的条件推理成绩显著地高于积极和消极情绪状态,结果支持抑制假说。     

Cognitive reappraisal reduces perceived exertion during endurance exercise

Emotion regulation may influence psychological responses to exercise. We examined whether the emotion regulation strategies, cognitive reappraisal and distraction, influenced psychological state and prefrontal cortex oxygenation during endurance exercise. Twenty-four endurance runners ran for 90 min at 75–85% maximum heart rate in three separate sessions with no instruction or with instructions to use cognitive reappraisal or distraction. Participants rated their emotional arousal, emotional valence, and perceived exertion before, every 30 min during, and after exercise. Functional near-infrared spectroscopy quantified changes in prefrontal cortex oxygenation. Participants felt lower emotional arousal and physical exertion when instructed to utilize cognitive reappraisal than when given no emotion regulation instruction. Such responses to distraction did not differ from the other conditions. Emotion regulation strategies did not influence emotional valence or prefrontal cortex oxygenation. Participants’ analytical interpretation of the cognitive reappraisal instruction could contribute to small effect sizes and limited effects. Further research should determine contexts under which emotion regulation strategies most benefit endurance exercise experience.     

Psychophysiological and subjective indices of emotion as a function of age and gender

Old, middle-aged and young persons of both genders were presented with slides containing pictorial stimuli that varied in emotional content. Each picture was rated on three dimensions: (1) valence; (2) arousal; and (3) dominance, using a 25-point scale. Heart rate, skin conductance, and forehead and cheek EMG were recorded during each slide presentation. The old and middle-aged groups showed greatly attenuated psychophysiological responses, compared to the young group. However, the old and middle-aged subjects used more extreme ratings than the young subjects on both the valence and arousal dimensions. Females were more valence-sensitive than males, but males in general used more extreme ratings of arousal than females. These results suggest a tendency to report increased felt emotion but decreased physiological response to emotional stimuli across the life span.