恐惧与厌恶情绪图片系统的编制：基于两种情绪的区分

基于恐惧与厌恶情绪刺激材料界定模糊的问题,实验一在总结前人研究中实验材料方面混淆恐惧和厌恶的基础上,通过问卷法完成了对恐惧与厌恶图片系统初步的搜集、整理工作;实验二通过进一步测评得到了具有良好信度的恐惧与厌恶情绪图片系统,图片系统中的恐惧与厌恶情绪很好的分离,且图片系统中动物、场景、物体三类图片的恐惧、厌恶程度均存在显著差异,可适用于需要不同种类情绪刺激的具体应用性研究。     

高低强迫清洗倾向个体对负性情绪注意偏向的差异

摘 要 本研究采用返回抑制范式,以诱发厌恶、恐惧和中性情绪的图片为线索,考察高、低强迫清洗倾向个体对负性情绪刺激注意偏向的差异及其发生机制。结果表明：（1）被试对诱发厌恶和恐惧的图片均产生了注意偏向且注意偏向是由注意解除困难所引起;（2）被试对诱发厌恶图片的注意偏向程度显著大于对诱发恐惧图片的注意偏向程度;（3）高、低强迫清洗倾向个体对诱发厌恶和恐惧图片的注意偏向程度之间的组间差异均不显著。     

用于情绪障碍研究的面部表情系统的初步建立

目的:建立一套情绪障碍研究用面部表情图片系统,为异常情绪的研究提供标准化刺激材料,增加情绪障碍研究的取材范围。方法:对85名被试拍摄喜悦、惊奇、轻蔑、厌恶、愤怒、恐惧、悲伤、平静、兴趣、羞愧、痛苦11种面部表情图片,拍摄强度分为强、中、弱三个等级,经过两次筛选,再由40名评定者对其进行类别、强度、愉悦度和优势度的判定。结果:获得一系列具有代表性的不同等级强度的8种面部表情图片520张,其中喜悦167张、惊奇78张、轻蔑67张、厌恶29张、愤怒46张、恐惧19张、悲伤65张、平静49张,每张图片都有其相应的一致率、强度、愉悦度和优势度分数。结论:面部表情图片系统为以后情绪障碍的研究提供了较好的标准化刺激材料;首次提供了轻蔑的表情图片;性别可能影响厌恶、恐惧表情的强度识别。     

阈下启动的恐惧和厌恶情绪对人际判断的影响

该研究通过两个实验,采用单因素的组间设计,探讨了阈下启动的恐惧情绪和厌恶情绪对人际判断的影响作用。研究结果显示:1)阈下呈现恐惧图片的情况下,被试认为随后的中性人物面孔图片表现出更多的攻击性和威胁性,相对于阈下呈现中性图片的条件;2)阈下呈现厌恶图片的情况下,被试认为人物随后的中性人物面孔图片表现出更多的无礼性和令人讨厌,相对于阈下呈现中性图片的条件。研究结果表明,在具体情绪的水平上,阈下情绪启动会影响被试随后的人际判断。     

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。     

核心厌恶与道德厌恶唤醒与适应的特异性：来自主观情绪体验和自主神经活动的证据

不同诱发物引发的厌恶情绪是否具有同质性目前存在争论。研究选择核心厌恶和道德厌恶图片为实验材料,以女大学生为被试,考察情绪诱发和适应阶段的主观情绪体验和自主神经活动变化。结果表明,（1）核心厌恶情绪下个体心率下降、心率变异性HF显著升高,在情绪主观体验和生理唤醒上出现适应性反应,表现为随刺激反复出现,厌恶反应减少;（2）道德厌恶下个体心率显著上升,没有出现情绪适应性反应。研究结果支持了核心厌恶和道德厌恶情绪的特异性观点。     

情绪、刺激呈现方式对现实性监控的影响

以往的来源记忆研究大多以词汇和图形等为实验材料,意义丰富的声音材料尚未涉及.本实验采用中国情感数据声音系统的声音为材料,分析了情绪效价、编码和测验阶段的刺激呈现方式等对区分听觉和想象两种不同来源的现实性监控的影响.实验含编码和测验两阶段,编码任务是听声音或根据提供的文字想象声音,并判断刺激的情绪效价;测验阶段则要求被试听声音或根据文字想象声音,并做出“听过”、“想象过”或“新项目”的三项选择判断.结果显示,想象刺激低于听觉形式获得刺激的提取成绩;情绪效价显著影响听过项目的提取绩效;编码与测验刺激呈现方式匹配条件的来源监控成绩较高;恐惧刺激的判断快于厌恶刺激.上述结果表明:内部来源与外部来源提取是两种不同的活动,情绪效价对区分上述两种任务的现实性监控具有调节作用,编码与提取刺激呈现方式匹配与否对提取结果的影响明显,恐惧刺激的加工相对优先.     

威胁性情绪对时间知觉的影响——基于情绪动机理论的视角

本研究从动机角度探讨两种特定的威胁性情绪(愤怒、恐惧)对时间知觉的影响。分别采用情绪面孔图片(实验1)和身体图片(实验2),通过时间比较任务(实验1、实验2)和时间估计任务(实验3),均发现了时间知觉在愤怒和恐惧这两种威胁性情绪影响下的差异：与中性情绪相比,愤怒引起主观时间变短,恐惧引起主观时间变长。研究揭示了情绪动机对时间知觉的影响,趋近动机下主观时间变短,回避动机下主观时间变长。     

厌恶和恐惧情绪对跨期选择的不同影响：基于ERP的研究

本研究运用事件相关电位技术(ERPs)考察厌恶和恐惧情绪对跨期选择的影响。其中,厌恶和恐惧情绪采用情绪面孔图片进行启动,分析跨期选择任务中评估阶段所诱发的ERP成分。行为结果发现,与中性面孔相比,厌恶面孔启动使个体倾向于选择立即奖赏。ERP结果发现,在选项评估阶段,厌恶面孔比中性和恐惧面孔启动诱发更大的P2、P3和LPP波幅。这说明,厌恶情绪促使个体投入更多的注意和动机资源对跨期选项进行评估,进而使个体倾向即时满足。     

厌恶和恐惧情绪对跨期选择的不同影响：基于ERP的研究

本研究运用事件相关电位技术(ERPs)考察厌恶和恐惧情绪对跨期选择的影响。其中,厌恶和恐惧情绪采用情绪面孔图片进行启动,分析跨期选择任务中评估阶段所诱发的ERP成分。行为结果发现,与中性面孔相比,厌恶面孔启动使个体倾向于选择立即奖赏。ERP结果发现,在选项评估阶段,厌恶面孔比中性和恐惧面孔启动诱发更大的P2、P3和LPP波幅。这说明,厌恶情绪促使个体投入更多的注意和动机资源对跨期选项进行评估,进而使个体倾向即时满足。     

Priming the activation of fear and disgust: evidence for semantic processing

Given that semantic processes mediate early processes in the elicitation of emotions, we expect that already activated emotion-specific information can influence the elicitation of an emotion. In Experiment 1, participants were exposed to masked International Affective Picture System (IAPS) pictures that elicited either disgust or fear. Following the presentation of the primes, other IAPS pictures were presented as targets that elicited either disgust or fear. The participants' task was to classify the target picture as either disgust or fear evoking. In Experiment 2, we substituted the IAPS primes with facial expressions of either disgust or fear. In Experiment 3, we substituted the IAPS primes with the words disgust or fear. In all three experiments, we found that prime-target combinations of the same emotion were responded to faster than prime-target combinations of different emotions. Our findings suggest that the influence of primes on the elicitation of emotion is mediated by activated schemata or appraisal processes.     

厌恶与恐惧情绪习得的性别差异研究:一项ERP研究

采用事件相关电位技术（ERPs）,用条件性习得范式探讨厌恶与恐惧情绪习得的性别差异。行为结果表明,在成功习得厌恶、恐惧和中性情绪之后,男女性在唤醒度维度上,性别差异显著;脑电结果表明,在早期N1和P2成分,厌恶情绪与恐惧情绪的习得无显著性别差异;但男女不同性别在N2成分上差异显著,主要表现为女性在厌恶、恐惧、中性这三类CS的N2成分均差异显著,但男性仅厌恶与中性情绪的CS差异显著。结果表明在负性情绪的习得中,女性比男性更敏感。     

The Geneva affective picture database (GAPED): a new 730-picture database focusing on valence and normative significance

In emotional research, efficient designs often rely on successful emotion induction. For visual stimulation, the only reliable database available so far is the International Affective Picture System (IAPS). However, extensive use of these stimuli lowers the impact of the images by increasing the knowledge that participants have of them. Moreover, the limited number of pictures for specific themes in the IAPS database is a concern for studies centered on a specific emotion thematic and for designs requiring a lot of trials from the same kind (e.g., EEG recordings). Thus, in the present article, we present a new database of 730 pictures, the Geneva Affective PicturE Database, which was created to increase the availability of visual emotion stimuli. Four specific negative contents were chosen: spiders, snakes, and scenes that induce emotions related to the violation of moral and legal norms (human rights violation or animal mistreatment). Positive and neutral pictures were also included: Positive pictures represent mainly human and animal babies as well as nature sceneries, whereas neutral pictures mainly depict inanimate objects. The pictures were rated according to valence, arousal, and the congruence of the represented scene with internal (moral) and external (legal) norms. The constitution of the database and the results of the picture ratings are presented.     

Affective responses to body stimuli: comparing male and female bodies with cropped heads and masked faces

Three studies were conducted to determine whether headless bodies evoke affective responses that might confound neuroimaging and electrophysiological findings. In Experiment 1, 224 participants rated pictures, including bodies with cropped heads and masked faces, for disgust, fear, naturalness, valence and arousal. In Experiment 2, 38 participants viewed the same images during a free word association task, whilst in Experiment 3 galvanic skin responses were measured as 57 participants completed a similar rating task to that in Experiment 1. No differences were found between responses elicited by bodies without heads versus bodies with masked faces, although female bodies were thought of more positively than male bodies. This suggests that headless bodies are not abhorrent and are appropriate stimuli for investigating body-selective perceptual processes as they do not evoke face-processing mechanisms. Our findings also suggest that differences between male and female body viewing should be considered when investigating visual body perception.     

Crossmodal transfer of arousal, but not pleasantness, from the musical to the visual domain

Arousal and valence (pleasantness) are considered primary dimensions of emotion. However, the degree to which these dimensions interact in emotional processing across sensory modalities is poorly understood. We addressed this issue by applying a crossmodal priming paradigm in which auditory primes (Romantic piano solo music) varying in arousal and/or pleasantness were sequentially paired with visual targets (IAPS pictures). In Experiment 1, the emotion spaces of 120 primes and 120 targets were explored separately in addition to the effects of musical training and gender. Thirty-two participants rated their felt pleasantness and arousal in response to primes and targets on equivalent rating scales as well as their familiarity with the stimuli. Musical training was associated with elevated familiarity ratings for high-arousing music and a trend for elevated arousal ratings, especially in response to unpleasant musical stimuli. Males reported higher arousal than females for pleasant visual stimuli. In Experiment 2, 40 nonmusicians rated their felt arousal and pleasantness in response to 20 visual targets after listening to 80 musical primes. Arousal associated with the musical primes modulated felt arousal in response to visual targets, yet no such transfer of pleasantness was observed between the two modalities. Experiment 3 sought to rule out the possibility of any order effect of the subjective ratings, and responses of 14 nonmusicians replicated results of Experiment 2. This study demonstrates the effectiveness of the crossmodal priming paradigm in basic research on musical emotions.     

Case Study: A Quantitative Report of Early Attention,Fear, Disgust,and Avoidance in Specific Phobia for Buttons

Specific phobia is characterized by elevated early attention to the phobic object, negative emotion, and avoidance. Typically, phobic objects are biologically relevant, such as potentially threatening snakes or spiders, or potentially contaminating needles or rodents. It is unclear whether the same early attention, emotion, and avoidance responses can be observed in phobia for uncommon, nonbiologically relevant objects, such as buttons (koumpounophobia). In an experimental case study, we measured early attention (detection rates to briefly presented images before a backward mask), emotion, and avoidance to clothing buttons in a button-phobic participant. We compared these responses to nonphobic objects (zippers), and to well-matched control participants. We observed elevated early attention, fear, and disgust to buttons, which did not generalize to nonphobic emotional stimuli. In addition, we observed elevated avoidance of buttons, which did generalize to normatively fearful and disgusting pictures. If replicated, our results indicate that nonbiologically prepared phobic objects elicit similar elevated early attention, emotion, and avoidance as biologically prepared phobic objects. The finding that avoidance was the only response that generalized to nonphobic objects may have treatment implications—namely, that therapeutic attempts to reduce avoidance might consider including a variety of objects, not just the phobic object.     

Fear and Disgust Responding to Heterogeneous Blood-Injection-Injury Stimuli: Distinctions from Anxiety Symptoms

Discrepancies exist in the literature regarding the unique role of disgust in Blood-Injection-Injury (BII) phobia. The present study attempts to clarify the discrepancy using a sample of analogue BII phobics (n = 40) and nonphobics (n = 40) who completed a series of questionnaires and were exposed to blood, mutilation, and injection pictures. The findings revealed that BII phobics reported greater disgust and contamination fears than nonphobics after controlling for anxious symptoms. When rating phobia-relevant pictures, BII phobics responded with greater fear and disgust than nonphobics after controlling for baseline anxiety scores. Furthermore, disgust was the dominant emotional response for BII phobics for the blood and mutilation stimuli. However, no differences were found between fear and disgust within the BII group when rating injection stimuli. The implications of these findings for better understanding the potential unique role of disgust in the etiology, maintenance, and treatment of BII phobia are discussed.

Health Is Associated With Antiparasite Behavior and Fear of Disease-Relevant Animals in Humans

Evolutionary arms races between humans and parasites resulted in a set of behavioral adaptations that serve as parasite-avoidance mechanisms. We investigated associations among reported health of the respondent, antiparasite behavior, and sensitivity to disgust and fear of disease-relevant and irrelevant animals. Ninety-seven participants (15–19 years old) rated their fear and disgust at 25 colorful pictures of disease-relevant and disease-irrelevant invertebrates. Consistent with previous work, we found that participants reported greater fear and disgust of disease-relevant invertebrates relative to disease-irrelevant invertebrates. Better perceived health correlated with lower fear of disease-relevant invertebrates. Sensitivity to disgust correlated with reported antiparasite behaviors. Contrary to expectations, we found a positive correlation between antiparasite behavior and reported health, which suggests that antiparasite behavior influences perceived health (but not vice versa), and we found that males perform more antiparasite behaviors than females. These results support the idea that disgust and fear of disease-relevant objects are adaptive emotions that prevent contact with contagious objects, especially in individuals with low perceived health.