行为免疫系统理论及其研究:新视野下的再考察

行为免疫系统理论认为, 为了应对流行病威胁, 人类进化出了一套特殊的行为反应倾向, 包括对疾病线索的警觉、厌恶, 对健康配偶的偏好, 对外群体的排斥, 对集体主义的推崇等。已有研究主要从宏观(群体)和微观(个体)两个水平开展, 虽然有大量研究结果支持该理论, 但也存在不少不一致甚至相反的发现。研究方法、理论基础和现代适用性等方面的不足可能是出现这种情况的原因。未来研究需克服上述问题, 并进一步拓展该理论的研究内容, 检验理论和相关研究的边界, 探讨行为免疫背后的生理机制等。     

未来时间距离对自我行为表征的影响：评价内容效价的作用

先前研究表明,对于自我行为,相对于近期过去,个体对远期过去正性行为的表征更倾向于特质性和抽象性,但对负性行为的表征未获得明确的类似效应（申之美等,2010）。本研究以特质性和行动性行为描述句子为实验材料,通过两个实验考察了未来时间距离对自我正性行为和负性行为的表征特征的影响,以进一步探讨评价内容的效价特性对于建构水平的心理距离效应的调节作用。实验结果发现,相对于近期未来,被试对远期未来自我的正性行为更倾向于抽象的特质性表征,但在负性行为上未获得类似效应。个体对未来自我行为的正性期待和负性回避倾向可能是自我行为表征缺乏距离效应的心理机制。     

主观社会阶层对亲社会行为的影响

从特质性的主观阶层感和情境性的主观阶层感两个角度考察了主观社会阶层对个体亲社会行为的影响。实验1采用问卷调查法,发现主观社会阶层较高的被试在人际关系取向上更倾向于共享关系取向。实验2采用材料启动法,发现对社会距离近的他人,高阶层与低阶层利他行为差异不显著;对社会距离远的他人,高阶层的利他行为显著大于低阶层组。研究结论：主观社会阶层较高的个体表现出更多的亲社会行为;社会距离起调节作用。     

共情对亲社会行为的影响及神经基础

亲社会行为是指那些使他人获益的行为,这类行为具有重要的进化意义和现实意义。作为影响亲社会行为的重要因素,共情在认知神经科学领域得到了广泛研究。脑岛等脑区的激活与消极情绪体验有关,是情绪共情的神经基础,利于产生亲社会行为动机;颞顶联合区等脑区参与对他人意图的理解,是认知共情的神经基础,利于个体选择有效方式帮助别人。女性在共情时激活额下回等与情绪有关的脑区,而男性在共情时激活颞顶联合区等与认知有关的脑区,这为男女个体在亲社会行为表现上的差异提供了新证据。未来研究应完善与亲社会行为有关的脑区功能的解释,综合多种影响因素,结合病理学研究考察共情对亲社会行为的影响及神经基础。     

高低行为激活系统个体在赌博任务下的决策模式

为考察不同行为激活系统/行为抑制系统下的个体在Iowa赌博任务反应模式下的决策行为,本研究采用人格问卷与行为实验相结合的方式,探讨了人格、冲动和行为决策间的关系。结果发现:(1)行为激活系统三个维度与行为决策存在显著负相关,行为激活系统低分组的IGT得分较高,行为激活系统高分组的IGT得分较低,而冲动特征与IGT得分相关不显著;(2)行为激活系统高、低分者在IGT任务上差异显著,且行为激活系统高分组者在收益-风险并存情境中表现出"即时收益优先"的决策模式。结果提示,在收益-风险并存情境中,高行为激活的人格特征者倾向风险决策模式。     

过去时间距离对自我行为表征的影响

建构水平理论认为,人们对心理上远距离(如远期过去)的客体或事件的表征倾向于采用高水平建构,而对心理上近距离(如近期过去)的客体或事件的表征倾向于采用低水平建构。本研究以特质性和行动性行为描述句子为实验材料,通过两个实验考察了过去时间距离对自我正性行为和负性行为的表征特征的影响。实验结果发现:(1)相对于近期过去,被试对远期过去自我的正性行为更倾向于特质性表征,但在负性行为上未获得明确的类似效应;(2)相对于远期过去的自我行为,个体对近期过去的自我行为倾向于负性表征,提示被试对近期过去自我的满意度较低和对未来自我提升的心理期待。     

同伴特点如何影响人们的合作与冲突行为?

人类的生存繁衍依赖于人们之间的相互合作,合作与冲突行为的研究近年来成为心理学的研究热点。本研究通过实验程序操纵Chicken Game中博弈同伴的特点,考察个体在社会困境中面对不同特点同伴时的合作行为。结果发现：(1)同伴道义论组和功利论组总和解率没有显著差异,同伴竞争组和合作组的总和解率也没有显著差异。(2)在与道义论以及合作型的同伴互动时,个体的行为没有明显受到上次博弈反馈的影响。(3)当同伴为功利论时,相比于上次博弈个体选择和解而同伴选择进攻,双方都选择和解时个体在当前博弈中更倾向于和解;(4)在同伴竞争组中,相比于上次博弈个体选择进攻而同伴选择和解,双方都选择和解时被试在当前博弈中会更倾向于和解。实验结果表明个体在博弈任务中会受到同伴特点的影响,并且同伴在博弈中的行为特点的影响更为显著。本研究从同伴特点来考察个体的合作行为,揭示了影响个体博弈行为的一种因素。     

企业员工行为中庸化的特征分析

本研究采用了问卷调查法,对苏州271名企业员工的行为中庸化的特征进行了研究。结果表明：（1）企业员工的行为,总体上是趋向于中庸的;（2）男性员工较女性员工在行为上更倾向于中庸;（3）教育水平高的员工较教育水平低的员工更倾向于中庸;（4）职务水平高的员工较职务水平低的员工更倾向于中庸;（5）企业性质不同、资本来源不同的企业员工,其行为中庸化水平不同。     

儿童行为抑制的生理机制研究述评

行为抑制指儿童不愿意接近陌生刺激,并带有害羞、恐惧和焦虑等消极情绪的气质类型,具有中等程度的稳定性和特定生理基础,对儿童日后情绪和行为发展具有较大影响。与非行为抑制个体相比,在特定的刺激条件下,行为抑制个体的杏仁核、纹状体和右前额区域的激活水平可能较高,心率和可的松水平也倾向于较高。目前,研究者已结合行为和生理学方法来探讨行为抑制的生理机制,取得了一些重要的进展。但是,也存在一些问题有待于进一步探讨。     

上级反馈对员工行为的影响

采用2×2(反馈方式、反馈对象)两因素组间实验设计,选取303名被试考察了上级反馈对员工积极整合行为倾向、冲突行为倾向和中立行为倾向的影响,以及个人主义-集体主义倾向对这种影响的调节作用。结果表明,Singelis、Triandis等人有关个人主义、集体主义的理论框架基本适合中国被试,个体的个人主义、集体主义倾向对反馈的效果起到一定的调节作用。领导的反馈方式、反馈针对的对象对员工的行为主效应都显著,上级的表扬会增加员工的中立行为倾向,针对个人的反馈会引起较强的冲突行为倾向。     

How guilt leads to reparation? Exploring the processes underlying the effects of guilt

It is widely assumed that guilt leads people to engage into reparatory behaviors. However, the processes underlying this effect are in need for further specification. Four studies tested potential underlying cognitive mechanisms. Results suggest that guilt increases attention toward positive and reparation-oriented cues (Study 1) and makes attitudes toward reparation-oriented primes more positive (Study 3). No effect was found for accessibility of reparation words (Studies 2a, b). Taken together, these results suggest that guilt leads people to pay more attention to reparation means and to develop a more positive attitude toward reparation means, but does not render reparatory means more accessible. Implications for a better knowledge of guilt’s behavioral consequences are discussed.     

Contextual questions prevent mood primes from maintaining experimentally induced dysphoria

We investigated the effects of questions designed to increase a wider awareness of the context in which moods occur on mood-maintaining primes in induced dysphoria. These questions were incorporated, with the primes (negative Velten mood induction statements) into a scrambled sentence task. In Study 1, contextual questions produced a significantly greater reduction in despondency compared to control questions. Study 2 replicated this finding and also demonstrated that contextual questions reduced corrugator EMG response to repeated despondency-inducing statements. The results indicate that contextual questions can prevent negative primes from maintaining depressed mood, consistent with Brewin's (1989) suggestion that one mechanism of psychotherapy is reducing the activation of situationally accessible negative representations.     

Disgust,Harm, and Morality in Politics

This study experimentally tests a theoretical framework for moral judgment in politics, which integrates two research traditions, Domain‐Theory and Sentimentalism, to suggest that moral judgment is bidimensional, with one dimension pertaining to harm and the other to moral emotions. Two experiments demonstrate that priming harm associations and the moral emotion of disgust prior to a political issue facilitates moral conviction on the political issue as well as a harsher moral judgment compared to no‐prime and to nonmoral emotional and cognitive negative primes (sadness and damage to objects). In addition, harm cues and disgust, but not sadness or damage, interact with the preexisting attitude toward the political issue in affecting moral conviction.     

Affect Is Greater Than,Not Equal to,Condition: Condition and Person Effects in Affective Priming Paradigms

Affective primes may impact ensuing behavior through condition and person effects. However, previous research has not experimentally disentangled these two sources of influence in affective priming paradigms. In the current research, we simultaneously examine the influence of condition factors, in terms of prime valence, and person factors, in terms of affect reactivity and personality. In both studies, undergraduate participants (total N = 174) were primed with either positive or negative affective stimuli (words, Study 1; pictures, Study 2) prior to judging the likability of a neutral target (Arabic characters, Study 1; inkblots, Study 2). Although we did observe between‐condition differences for positive and negative primes, person‐level effects were more consistent predictors of target ratings. Affect reactivity (affect Time 2, controlling Time 1) to the primes predicted evaluative judgments, even in the absence of condition effects. In addition, the personality traits of Neuroticism (Study 1) and behavioral inhibition system sensitivity (Study 2) predicted evaluative judgments of neutral targets following negative affective primes. With effects for condition, affect reactivity, and personality, our results suggest that affective primes influence ensuing behaviors through both informational and affective means. Research using affective priming methodologies should take into account both condition and person‐level effects.     

情境效应或自动化加工：大学生对老年人的内隐态度

使用词汇判断任务和新近发展起来的情感错误归因程序(AMP)研究范式, 探讨大学生对老年人的内隐态度是否具有情境效应。实验一的结果表明, 大学生被试并不认为老年人比年轻人具有更高的专业能力。实验二和实验三采用被试间设计, 在典型的AMP中分别添加了情境因素, 结果都表明被试在职业、家庭、美德等情境中对老年人没有给出更积极的内隐评价; 被试对中性数字启动的做出的内隐评价比对老年人启动的内隐评价的更积极。     

Immunizing against prejudice: effects of disease protection on attitudes toward out-groups

Contemporary interpersonal biases are partially derived from psychological mechanisms that evolved to protect people against the threat of contagious disease. This behavioral immune system effectively promotes disease avoidance but also results in an overgeneralized prejudice toward people who are not legitimate carriers of disease. In three studies, we tested whether experiences with two modern forms of disease protection (vaccination and hand washing) attenuate the relationship between concerns about disease and prejudice against out-groups. Study 1 demonstrated that when threatened with disease, vaccinated participants exhibited less prejudice toward immigrants than unvaccinated participants did. In Study 2, we found that framing vaccination messages in terms of immunity eliminated the relationship between chronic germ aversion and prejudice. In Study 3, we directly manipulated participants' protection from disease by having some participants wash their hands and found that this intervention significantly influenced participants' perceptions of out-group members. Our research suggests that public-health interventions can benefit society in areas beyond immediate health-related domains by informing novel, modern remedies for prejudice.     

Disgust sensitivity and attitudes toward organ donation among African-American college students.

241 African-American college students (94 men and 147 women, mean age = 20.3 +/- 3.4 yr.) completed the 1994 Disgust Scale of Haidt, McCauley, and Rozin and a modified form of Parisi-Rizzo's 1987 Attitudes Toward Organ Donation Scale (negative subscale only) as well as a behavioral measure of intention to donate organs after death. Analyses indicated that the higher the disgust sensitivity, the more negative the attitude toward organ donation and the less likely the student was to indicate intent to donate organs. It was further shown that negative attitudes toward organ donation mediated the relationship between disgust sensitivity and the behavioral intention measure. Results highlight the complexity of the issues surrounding organ donation within an African-American population and provide additional empirical evidence for the development of a theoretical model to explain the organ donation phenomenon.     

Differential priming effect for subliminal fear and disgust facial expressions

Compared to neutral or happy stimuli, subliminal fear stimuli are known to be well processed through the automatic pathway. We tried to examine whether fear stimuli could be processed more strongly than other negative emotional stimuli using a modified subliminal affective priming paradigm. Twenty-six healthy subjects participated in two separated sessions. Fear, disgust and neutral facial expressions were adopted as primes, and 50% happy facial stimuli were adopted as a target to let only stronger negative primes reveal a priming effect. Participants were asked to appraise the affect of target faces in the affect appraisal session and to appraise the genuineness of target faces in the genuineness appraisal session. The genuineness instruction was developed to help participants be sensitive to potential threats. In the affect appraisal, participants judged 50% happy target faces significantly more 'unpleasant' when they were primed by fear faces than primed by 50% happy control faces. In the genuineness appraisal, participants judged targets significantly more 'not genuine' when they were primed by fear and disgust faces than primed by controls. These findings suggest that there may be differential priming effects between subliminal fear and disgust expressions, which could be modulated by a sensitive context of potential threat.     

Repulsed by violence: disgust sensitivity buffers trait, behavioral, and daily aggression

Many models of aggression include negatively valenced emotions as common elicitors of aggressive behavior. Yet, the motivational direction of these emotions is not taken into account. The current work explored whether sensitivity to a negative emotion associated with behavioral avoidance-disgust-will predict lower levels of aggression. Five studies tested the hypothesis that disgust sensitivity predicts less aggression. In Study 1 (N = 92), disgust sensitivity predicted less trait physical and verbal aggression. In Study 2 (N = 268), participants high in disgust sensitivity were less likely to behave aggressively towards a stranger on a reaction-time task. In Study 3 (N = 51), disgust sensitivity was associated with less intimate partner violence inclinations. Study 4 (N = 247) replicated this effect longitudinally. In Study 5 (N = 166), each domain of disgust (i.e., moral, sexual, and pathogen disgust) had a buffering effect on daily aggression when daily experiences activated those specific domains. These results highlight the usefulness of considering the motivational direction of an emotion when examining its influence on aggression.     

Intergroup disgust sensitivity as a predictor of islamophobia: The modulating effect of fear

The present research investigated whether intergroup disgust sensitivity (ITG-DS) predicts greater Islamophobia, and whether this positive association is modulated (strengthened or weakened) by the experience of concurrent incidental non-disgust emotions (fear, sadness, anger, happiness). In Study 1 (N = 225) participants completed measures of ITG-DS (an emotionally charged individual difference variable reflecting heightened tendency to experience disgust and revulsion reactions toward ethnic outgroup encounters) and dispositional measures of fear, sadness, anger, and happiness. Results revealed that among those experiencing greater (vs. lower) fear or sadness, the positive relation between ITG-DS and Islamophobia was significantly stronger. In Study 2 (N = 174), fear, sadness, and happiness were experimentally induced. Among those induced to experience fear, the positive relation between ITG-DS and prejudice toward Muslims was significantly strengthened relative to control. Overall, specific negative emotions, especially fear, interacted with individual differences in intergroup-relevant disgust sensitivity to inform outgroup evaluations.