情绪对时间知觉的影响

研究了情绪唤醒度和愉悦度对时间知觉的影响及其机制.以53名大学生为被试,采用中国情绪图片系统为情绪诱发材料,使用时间两分法和泛化法考察唤醒和注意机制对时间知觉的影响.结果表明:在短时距下,(1)唤醒度和愉悦度对时间知觉的影响可能是独立的,两个实验中交互作用都不显著;(2)情绪主要通过唤醒机制影响时间知觉,被试在高唤醒情绪下知觉到的时间显著长于在低唤醒情绪下知觉到的时间.     

不同愉悦度面孔阈下情绪启动效应:来自ERP的证据

采用事件相关电位技术,研究阈下情绪启动效应。实验中的因素是阈下呈现的情绪启动面孔的愉悦度,分为高、低两个水平。被试的任务是对中性靶刺激面孔进行情绪判断。结果发现:被试在对靶刺激进行情绪判断时出现与启动刺激愉悦度趋于一致的启动效应;低愉悦度面孔作启动刺激条件下N1和P2的波幅显著大于高愉悦度面孔作为启动刺激的条件;不同愉悦度情绪面孔的阈下启动效应是由于启动刺激影响了对靶刺激的知觉加工所致。     

唤醒度对汉语情绪词情绪启动效应的影响

使用词汇情绪启动的实验范式,通过两个行为实验探讨了不同SOA(100ms、300ms和500ms)条件下情绪唤醒度在情绪启动效应中的作用,以及情绪启动效应是否受到任务形式的影响。结果发现,在情绪效价判断任务中,SOA为100ms时高唤醒和低唤醒启动词都出现了情绪启动效应,SOA为300ms时只有高唤醒启动词出现了情绪启动效应。在真假词判断任务中,无论高唤醒还是低唤醒启动词都没有出现情绪启动效应。唤醒度是影响词汇情绪启动效应的重要因素,但这种效应不是完全自动化的过程,会受到SOA和任务导向的影响。情绪启动效应可能来自于启动词与目标词在反应趋向上的一致性趋势。     

过犹不及：情绪的效价-唤醒度冲突在动机倾向上的分离

本研究通过两个实验考察不同效价度和唤醒度的情绪刺激是否存在动机倾向上的分离模式。实验1要求被试对表情图片的动机倾向（趋近/回避）进行主观评分,发现被试对低唤醒表情或积极表情有更加趋近的倾向。实验2以运动的线索启动动机倾向（趋近/回避）,完成情绪词效价判断任务,从内隐的角度考察情绪刺激是否存在动机倾向上的分离模式,结果发现,被试对动机倾向一致的情绪刺激的反应时更快。趋近的消极情绪词比趋近的积极情绪词的N2波幅更大,远离的低唤醒情绪词比趋近的低唤醒情绪词的LPC波幅更大。结果说明积极或者低唤醒的情绪刺激引发趋近倾向,而消极或高唤醒的情绪刺激引发回避倾向。     

词汇的唤醒度对情绪标注效应的影响—ERPs研究

基于晚期阻断理论考察词汇唤醒度对情绪标注效应的影响,研究选择情绪面孔图片为实验材料,借助ERPs技术,以命名后的LPP波幅为指标,考察词汇的唤醒度对情绪标注效应的影响。结果发现：进行情绪标注时,与使用低唤醒度词相比,高唤醒度词条件下的LPP波幅更小;而进行非情绪标注时,差异不显著;无论词的唤醒度高或低,情绪标注与非情绪标注差异显著,情绪标注下LPP波幅更低。结果表明：进行情绪标注时,情绪词唤醒度越高抑制情绪的效果越好,而进行非情绪标注时则无影响;结果支持了晚期阻断理论。     

时间间隔对面部表情唤醒度阈下情绪启动的影响

采用3×4混合实验设计,研究了启动刺激与靶刺激的时间间隔对面部表情唤醒度阈下情绪启动效应的影响,实验因素为启动刺激的唤醒度和时间间隔。结果发现,当时间间隔为200ms、300ms、500ms时,出现了阈下情绪启动效应,时间间隔为700ms时,启动效应消失。上述结果表明阈下情绪启动效应可在唤醒度维度上实现,但此效应只能在启动刺激与靶刺激间隔时间较短的情况下出现。     

中国人微渐变情绪面孔库的建立及分析评估

建立一套基于中国人相同面孔的同一类型情绪的愉悦度渐变序列的表情图组系统,为中国人情绪障碍研究提供一套本土化的情绪面孔微渐变的标准刺激材料。方法：要求20名被试表演7种基本情绪(开心、悲伤、厌恶、恐惧、愤怒、惊奇、平静),且每种基本情绪要表现出高、中、低3个强度等级,拍摄每个被试每种情绪不同强度的面部表情图片。另选84名评定者对这些图片进行情绪类型的判断和唤醒度、愉悦度、优势度评分,然后将同一面孔的同类情绪图片分在同一组内,再按愉悦度高低排序。结果：获得相同面孔的不同情绪类型图组共78组,每组包含同一个人从平静表情到不同愉悦度某类情绪的序列表情图片,其中开心表情20组、愤怒表情15组、悲伤表情18组、厌恶表情10组、惊奇表情14组、恐惧表情1组,共计图片603张,每张图片都有对应的认同率及情绪唤醒度、愉悦度、优势度评分。结论：中国人情绪面孔微渐变图组系统为情绪认知研究提供了更灵敏的标准化的表情刺激材料。     

青少年与成人不同情绪刺激调节效应的差异

旨在探究增强调节和减弱调节调节效应量的年龄差异。通过两个实验系统考察青少年和成人对不同情绪刺激使用不同调节策略时,调节效应的差异。实验一采用“情绪反应性—调节图片任务（REAR-I Task）”考察了35名青少年和35名成人情绪调节的效应量。实验二进一步对情绪图片的唤醒度进行分组（高唤醒/低唤醒）,考察了59名青少年和59名成人情绪调节的效应量。结果验证了研究假设：整体而言,对不同效价和唤醒度情绪刺激采用增强调节或减弱调节时,成人的调节效应量均大于青少年,对正性情绪的减弱调节方面尤为明显。     

情绪对联合行动中共同表征能力的影响机制

采用联合Simon任务通过3个实验探究不同情绪维度对联合任务中共同表征能力的影响机制。实验1a、1b分别考察在高、低唤醒度条件下不同效价对个体共同表征能力的影响; 实验2在此基础上进一步探索动机维度在其中的作用。结果发现：无论效价高低, 高唤醒度都是提高个体共同表征能力的关键因素, 且动机强度在其中起一定调节作用; 而在低唤醒度条件下, 高效价会起一定补偿作用。上述结果很好地支持了参照编码假说, 也澄清了情绪不同维度对联合动作表征的影响机制。     

本土化情绪声音库的编制和评定

为情绪研究提供一套本土量化的声音刺激材料,在大量收集各种声音刺激的基础上精选出453个声音,并征集50名大学生对声音的愉悦度、唤醒度和优势度进行了自我报告的9点量表评分。结果表明男女生对部分声音的情绪感受有所不同;聚类分析可将声音聚为6类,大致可引发愉快、悲伤、恐惧、厌恶等情绪,提示可以同时从情绪维度和情绪类型两种途径研究情绪问题,两者结果也有相互比较的可能性;本情绪声音库还有待进一步完善。     

Blue or red? The effects of colour on the emotions of Chinese people

Two experiments were performed to examine the effects of red and blue on the emotional pleasure of Chinese people. Experiment 1 explored the effects of the ‘physical’ colours red and blue on emotion, and the results showed that red induced positive and negative emotion, while blue only induced positive emotion. Experiment 2 further explored the effects of the ‘verbal’ colours red and blue on emotion, and the results showed that red induced only positive emotion, while blue induced neither positive nor negative emotion. The findings indicate that the influence of colour on emotion is rooted in both natural and social associations. For Chinese, the associations between blue and positive emotion, and red and negative emotion, were natural associations; however, the associations between red and positive emotion were social associations. Moreover, physical colour and verbal colour stimuli induced emotions by activating different mechanisms: physical colour induced emotions via both natural and social associations, whereas verbal colour induced emotions via social associations.     

How Red,Blue, and Green are Affectively Judged

The present study aimed at examining how the colors red, blue, and green were affectively judged through three variables: dominance, arousal, and pleasure. All participants were exposed to red, blue, green, and white (control condition), which were created using the hue–saturation–value color model. Then, participants were invited to rate their perceptions using the self‐assessment manikin. Results showed that (a) red was strongly associated with dominance and arousal; (b) blue was moderately and slightly associated with dominance and arousal, respectively; (c) green was slightly associated with arousal; and (d) blue and green were slightly more pleasurable than red. These results provide initial insights into how people perceive colors through the notions of dominance, arousal, and pleasure. Important practical implications for the use of colors are discussed. Copyright © 2016 John Wiley & Sons, Ltd.     

Induced mood and preschoolers' behavior: isolating the effects of hedonic tone and degree of arousal

A circumplex model of emotion was used to examine the role of hedonic tone and degree of arousal in the effects of induced mood on children's persistence behavior. A total of 45 preschool children were asked to describe and think about either exciting, calm, or sad experiences and then perform a persistence task. Heart rate was continuously recorded throughout the session. Observers' ratings of facial expressions and parents' ratings of the experiences provided convergent validation of the induction procedure. Children in the excited induction were rated as displaying facial expressions and generating situations that were high on both pleasure and arousal. The facial expressions and situations of those in the calm induction were also rated as positive, but less arousing, whereas those in the sad induction were rated as low on both. Concurrent heart rate recordings showed differential effects of the mood condition on autonomic arousal during the period when the children were generating the affect-inducing situations. These effects dissipated shortly after the beginning of the concentration phase of the induction procedure. Subsequent performance on a persistence task indicated that higher levels of arousal increased the amount of work completed, whereas higher levels of pleasure did not. Differential levels of autonomic arousal were displayed during the persistence task. These findings validate two important elements of the experimental design: excited versus calm states induce similar levels of pleasure but different levels of arousal, and calm versus sad states induce similar levels of arousal but different levels of pleasure. In previous research, hedonic tone and degree of arousal have often been confounded.(ABSTRACT TRUNCATED AT 250 WORDS)     

诱发及个体自发认知重评对情绪唤醒反应及情绪记忆的影响

为了明确诱发（IRE）及个体习惯化的自发（SRE）认知重评策略对情绪唤醒反应及情绪记忆的影响,在测量被试SRE水平的基础上,先呈现一系列中性与负性情绪图片,要求被试对图片内容进行自然观看或认知重评,同时记录被试的主观与生理唤醒水平,之后对图片进行自由回忆及再认测试。发现IRE显著降低了情绪唤醒水平及再认正确率,但只对情绪唤醒反应较高的LR（SRE水平较低）被试有效。结果提示,IRE对情绪唤醒反应与情绪记忆的调控受到SRE的影响。     

Person perception from changing emotional expressions: primacy,recency, or averaging effect?

ABSTRACT

Dynamic changes in emotional expressions are a valuable source of information in social interactions. As the expressive behaviour of a person changes, the inferences drawn from the behaviour may also change. Here, we test the possibility that dynamic changes in emotional expressions affect person perception in terms of stable trait attributions. Across three experiments, we examined perceivers’ inferences about others’ personality traits from changing emotional expressions. Expressions changed from one emotion (“start emotion”) to another emotion (“end emotion”), allowing us to disentangle potential primacy, recency, and averaging effects. Drawing on three influential models of person perception, we examined perceptions of dominance and affiliation (Experiment 1a), competence and warmth (Experiment 1b), and dominance and trustworthiness (Experiment 2). A strong recency effect was consistently found across all trait judgments, that is, the end emotion of dynamic expressions had a strong impact on trait ratings. Evidence for a primacy effect was also observed (i.e. the information of start emotions was integrated), but less pronounced, and only for trait ratings relating to affiliation, warmth, and trustworthiness. Taken together, these findings suggest that, when making trait judgements about others, observers weigh the most recently displayed emotion in dynamic expressions more heavily than the preceding emotion.     

Chromatic perception in relation to an hypothesized cerebral dominance

On the basis of the cerebral dominance, we have hypothesized an asymmetry (for saturation or brightness) between the two eyes in perception of chromatic stimuli. 51 subjects were tested on chromatic perception (green, red, yellow, blue). For each subject also an ocular-dominance score was obtained. The results substantially confirmed the hypothesis of cerebral dominance in color perception. Subjects with high ocular-dominance scores (right- or left-dominant subjects) showed for the green stimulus asymmetric behavior, while subjects with low ocular-dominance scores showed a tendency toward symmetry in perception.     

Time-limited effects of emotional arousal on item and source memory

Two experiments investigated the time-limited effects of emotional arousal on consolidation of item and source memory. In Experiment 1, participants memorized words (items) and the corresponding speakers (sources) and then took an immediate free recall test. Then they watched a neutral, positive, or negative video 5, 35, or 50?min after learning, and 24 hours later they took surprise memory tests. Experiment 2 was similar to Experiment 1 except that (a) a reality monitoring task was used; (b) elicitation delays of 5, 30, and 45?min were used; and (c) delayed memory tests were given 60?min after learning. Both experiments showed that, regardless of elicitation delay, emotional arousal did not enhance item recall memory. Second, both experiments showed that negative arousal enhanced delayed item recognition memory only at the medium elicitation delay, but not in the shorter or longer delays. Positive arousal enhanced performance only in Experiment 1. Third, regardless of elicitation delay, emotional arousal had little effect on source memory. These findings have implications for theories of emotion and memory, suggesting that emotion effects are contingent upon the nature of the memory task and elicitation delay.     

情绪效价和唤醒对熟悉性和回想的不同影响

本研究检验了情绪的效价和唤醒对记忆提取阶段熟悉性过程和回想过程的影响及其心理机制。结果发现,编码阶段无分心任务时,积极图片的高、低自信再认准确率均高于消极图片,而唤醒对于高自信再认准确率的影响只限于消极图片;在编码阶段设置分心任务时,发现积极和消极的高唤醒图片的高自信再认准确率显著高于低唤醒图片。这些结果说明情绪的效价影响了熟悉性和回想两类记忆过程,而唤醒只影响回想过程,效价效应是编码阶段被试调用认知资源对积极图片进行精细加工的结果,而唤醒对回想过程的影响是自动编码高唤醒刺激细节的结果。