作为效应的ERP研究

晚正成分能够反映不同效价和不同唤醒度的情绪。作为后悔的一种现象,作为效应是否与晚正成分具有关联是研究关心的问题。采用运气轮博弈的范式,记录与分析被试在“做”与“不做”决策下的ERPs。研究发现,决策结果的正误显著影响了FRN、P300和LPC的波幅大小。作为类别对FRN、P300和LPC波幅的影响受到不同决策结果的影响,在决策正确的条件下,作为类别对FRN、P300和LPC波幅不产生影响,而在决策错误的条件下,作为类别对FRN、P300和LPC波幅产生了显著的影响。结果表明作为效应不仅影响了FRN、P300的波幅,同时也影响了LPC的波幅,将来研究应进一步探明晚正成分与后悔的密切关联。     

自身得失对朋友博弈结果评价的影响：来自ERPs的证据

本研究通过经典的金钱博弈任务, 以FRN和P300为反应指标, 探讨了自身获益或损失对朋友结果评价分别会产生何种影响, 以及这种影响模式是如何受到个体自我建构方式调节的。结果发现, 在自身获益条件下, 观看朋友损益之间的FRN和P300差异不再存在; 在自身损失条件下, 虽然观看朋友输赢之间的P300差异消失了, 但FRN差异依然显著。不仅如此, 无论自身得失, 独立型自我建构启动组在观看朋友损益上的FRN差异均不再显著, 但在自身获益后看到朋友损失能激发更强的P300波幅。本研究结果表明：(1) 对朋友的结果评价模式并非固定不变, 而是会随个体自身所处得失境遇的不同而有所区别; (2) 相对于互依型自我建构启动组, 独立型自我建构启动组在面对朋友的得失时表现得更为冷漠并更具竞争性。     

反馈相关ERP成分的参照点效应

采用投注—反馈金钱赌博任务具体操作了在结果评价中被试可能采用的参照点,试图进一步探究大脑监控系统是如何对事件的好、坏以及好坏程度进行评定的。实验结果表明,不管是Feedback-related negativity (FRN)还是P300,和赌注相差较小的中间三种反馈诱发的波幅差异不显著,和赌注相差较大的两边两种反馈诱发的波幅和中间三种反馈差异显著。该结果说明,反馈相关ERP成分不是反映了对绝对信息的加工,而是反映了以赌注所在的区间为参照点的相对信息的加工。研究进一步从不同侧面表明FRN所代表的效价评价的参照点效应,同时首次从神经机制上揭示了P300所代表的数量加工的参照点效应     

责任归因对“做效应”的调控及其ERP证据

“做效应(action effect)”是指决策中由“做(action)”与“不做(inaction)”行为引起的相同决策后果, 却诱发了不同强度的情绪体验。本研究使用ANSIE量表筛选了责任归因不同倾向的两类被试(极端内控者、极端外控者), 运用ERP技术, 在一项简单赌博实验任务中考察了这两类被试的“做效应”差异及其电生理证据, 旨在探讨责任归因对“做效应”的调控作用。行为结果表明, 无论结果输赢, 极端内控被试的“做”与“不做”行为结果诱发的情绪强度和责任感强度都没有差异, 而极端外控被试的“做”行为诱发的情绪强度和责任感强度都比“不做”行为诱发的明显大; 脑电结果表明, 在FRN和P300上, 极端内控被试的“做”与“不做”行为诱发的FRN和P300波幅之间都没有差异, 而极端外控被试的“做”行为诱发的这两种脑电成分波幅都比“不做”诱发的较大。简言之, “做效应”在极端内控被试身上表现不明显, 而在极端外控被试身上表现明显。“做效应”很可能是由于个体对不同行为导致的相同决策后果的责任归因不同引起的。     

责任对后悔强度的影响：来自ERP的证据

采用事件相关电位技术,研究责任对后悔的影响。实验采用赌博范式,主要因素是被试对于负性结果所负责任的大小,分为三个水平：1（只有被试一人犯错）、1/2（被试和另外一个人犯错）以及1/3（三人同时犯错）。研究结果发现,被试主观评定的情绪强度和责任感上,1条件下的显著大于1/2和1/3条件下的,而1/2和1/3条件无显著差异;被试的反事实思维则在三个水平上差异显著,责任越大,反事实思维越强。fERN（feedback error-related negativity,反馈错误相关负波,也称FRN,反馈负波）的波幅在1条件下的显著大于1/2和1/3条件下的,而1/2和1/3条件下的无显著差异;而P300的波幅则在三种水平上差异显著,责任越大,波幅越小。结果支持责任对后悔强度有所影响,且后悔强度在一定程度上随责任大小呈线性变化。     

青少年结果预期与评价的ERP研究

大脑不断地对环境事件产生预期并将这些预期与实际结果进行比较, 通过对反馈刺激的结果评价以优化后续行为。采用抽奖式赌博任务范式, 操纵得奖的确定性程度, 利用事件相关电位技术(ERP), 研究青少年结果预期与评价的认知和神经电生理过程, 以成人作为对照组进行比较分析。研究结果表明：(1)在反映自动、快速结果评价的FRN上, 无论在高确定性还是在低确定性条件下, 青少年与成人均未表现出显著性差异; (2)组别与确定性程度在P300波幅上表现交互作用显著, 简单效应分析表明, 在高确定性条件下, 青少年组输、赢的P300波幅表现出差异; 而成人组输、赢的P300波幅无显著性差异。青少年对反馈刺激自动的快速结果评价能力已接近成人水平, 而对反馈刺激功能意义评价的控制加工能力还未发展成熟。     

人际合作与冲突影响博弈决策的结果评价

人际合作与冲突是人际互动的两种主要形式, 在人类社会的发展中有着重要作用。脑成像研究表明, 当个体和人类同伴进行博弈时, 选择合作与选择冲突激活脑区的强度有所不同。但目前尚不清楚, 人际合作与冲突如何影响决策选择之后的结果评价过程。本研究采用Chicken Game任务对此问题进行了探讨, 研究记录了22名健康成人被试与人类同伴进行Chicken Game任务时的脑电活动。结果表明, 反馈负波(FRN)和P300不仅受到结果效价的影响, 同时也受到人际合作与冲突的影响。相对于选择冲突, 个体选择合作时, 输钱和赢钱反馈引发的FRN以及P300波幅差异更大。相关分析表明, RA (被试和解对方进攻)反馈引发的FRN波幅与接受该反馈后下一个trials中和解的选择率(以及总的和解率)呈显著的负相关。上述结果表明, 在社会博弈中, 合作增加了个体对博弈结果的预期, 从而引发更大的FRN效应; 并且合作共赢的结果所具有的物质意义与社会意义, 使其诱发更大的P300波幅。     

自恋人格调节信任博弈的结果评价

自恋人格个体表现出亲社会行为的减少和对他人的反馈敏感。信任是人类社会互动行为的基础,自恋人格特质可能影响他们的信任决策。为了探究自恋水平如何影响信任博弈中结果评价的大脑活动,本研究采用事件相关电位技术记录了38名被试完成单次信任博弈时的脑电波。行为结果发现相对高自恋者的信任选择率显著低于相对低自恋者的信任选择率。脑电结果表明,相对高自恋者信任损失反馈减互惠获利反馈所得的FRN差异波(d FRN)显著地大于相对低自恋者,并且相对高自恋者结果评价诱发的P300波幅显著地大于相对低自恋者。本研究提供了自恋人格个体信任博弈中结果评价的初步神经电生理学证据。     

母亲与自我具有相同的动机等级:来自结果评价的FRN证据

自我不仅包括个体自我,还包括关系自我。母亲是关系自我一个非常重要的构成。朱滢等人(2007)的研究表明,与西方文化下的被试不同,母亲与自我在中国人大脑中的表征无显著差异。但是目前尚不清楚母亲与自我的动机等级性是否存在差异。在本研究中,我们利用一个简单的赌博任务,以反馈相关负波(feedback-related negativity,FRN)为指标,考察为自己而赌、为母亲而赌和为陌生人而赌三种情境下FRN波幅有无差异。行为结果没有发现三种不同受益者情境下的动机差异。脑电结果发现母亲和自我情境下的FRN显著大于陌生人情境下的FRN,但是母亲和自我情境下的FRN波幅统计上无显著差异。这个结果表明,母亲和自我的动机等级性在中国文化下是相同的。本研究首次在结果评价领域提供了母亲与自我具有相同动机等级的脑电证据。     

结果评价中自我体验与替代体验的参照点效应:一项赌博游戏的ERPs研究

本研究采用"投注—反馈"的虚拟赌博游戏范式,通过2个实验分别检测个体在评价自己决策结果 (实验1)和观察他人决策结果 (实验2)过程中赌注大小(即参照点)对大脑活动的影响。结果发现:(1)体验自我决策结果时,输钱比赢钱诱发更负的FRN,仅有一个负反馈(-10元)表现出以赌注为界的分离,且相对效价一样的反馈值诱发的FRN差异不显著;(2)体验他人决策结果时,无论输赢,有赌注比无赌注诱发的FRN更负;而且相对效价相同的反馈值诱发的FRN差异不显著。据此可以认为,FRN一定程度上反映了以赌注为基准的主观标准对社会信息的评价判断:自我体验中的个体对损失的敏感度远高于收益;而替代体验中的个体更倾向于将"损失更多"看作一种负性结果。     

On the counterfactual nature of envy: “It could have been me”

We examined whether counterfactual thinking influences the experience of envy. Counterfactual thinking refers to comparing the situation as it is to what it could have been, and these thought processes have been shown to lead to a variety of emotions. We predicted that for envy the counterfactual thought “it could have been me” would be important. In four studies we found a clear link between such counterfactual thoughts and the intensity of envy. Furthermore, Studies 3 and 4 revealed that a manipulation known to affect the extent of counterfactual thinking (the perception of being close to obtaining the desired outcome oneself), had an effect on the intensity of envy via counterfactual thoughts. This relationship between counterfactual thinking and the experience of envy allows for new predictions concerning situations under which envy is likely be more intense.     

反事实思维与后悔的关系：调节模式的调节作用

已有研究表明反事实思维越多则后悔越强烈。本研究试图通过两项实验分别探讨特质性、情境性调节模式是否影响反事实思维与后悔之间的关系。结果表明：特质性调节模式及情境性调节模式均对反事实思维与后悔之间的关系具有调节作用,具体来说,针对情境性调节模式而言,运动模式下加法式思维越多则后悔越轻微,评估模式下加法式思维越多则后悔越强烈;针对特质性调节模式而言,运动模式下加法式思维越多则后悔越轻微。     

When Possibility Informs Reality: Counterfactual Thinking as a Cue to Causality

People often engage in counterfactual thinking, that is, imagining alternatives to the real world and mentally playing out the consequences. Yet the counterfactuals people tend to imagine are a small subset of those that could possibly be imagined. There is some debate as to the relation between counterfactual thinking and causal beliefs. Some researchers argue that counterfactual thinking is the key to causal judgments; current research suggests, however, that the relation is rather complex. When people think about counterfactuals, they focus on ways to prevent bad or uncommon outcomes; when people think about causes, they focus on things that covary with outcomes. Counterfactual thinking may affect causality judgments by changing beliefs about the probabilities of possible alternatives to what actually happened, thereby changing beliefs as to whether a cause and effect actually covary. The way in which counterfactual thinking affects causal attributions may have practical consequences for mental health and the legal system.     

Missed opportunities: Psychological ramifications of counterfactual thought in midlife women

Counterfactual thinking entails the process of imagining alternatives to reality—what might have been. The present study examines the frequency, content, and emotional and cognitive concomitants of counterfactual thinking about past missed opportunities in midlife women. At age 43, nearly two-thirds of the sample of educated adult women reported having missed certain opportunities at some time in their lives. Most of the counterfactual thoughts concerned missed opportunities for greater challenge in work. Emotional distress at age 33 did not predict later counterfactual thought. Instead, counterfactual thinking at age 43 was associated with concurrent emotional distress. However, acknowledging counterfactual thinking about the past was also associated with envisioning ways to change things for the better in the future. This suggests the possibility that the negative appraisal often entailed in counterfactual thinking may be associated with emotional distress in the short run but with motivational benefits in the long run, at least for middle-aged women.     

Effect of counterfactual and factual thinking on causal judgements

The significance of counterfactual thinking in the causal judgement process has been emphasized for nearly two decades, yet no previous research has directly compared the relative effect of thinking counterfactually versus factually on causal judgement. Three experiments examined this comparison by manipulating the task frame used to focus participants' thinking about a target event. Prior to making judgements about causality, preventability, blame, and control, participants were directed to think about a target actor either in counterfactual terms (what the actor could have done to change the outcome) or in factual terms (what the actor had done that led to the outcome). In each experiment, the effect of counterfactual thinking did not differ reliably from the effect of factual thinking on causal judgement. Implications for research on causal judgement and mental representation are discussed.     

儿童反事实思维的研究述评

反事实思维一直以来是成人认知研究中备受关注的课题,近年来有关儿童反事实思维的发展也逐步引起研究者的兴趣。本研究论述了儿童反事实思维产生的早期信号、年龄变化、出现错误的原因以及与心理理论、因果推理、假装等心理状态之间的关系,最后在评述前人研究的基础上提出未来的研究方向。     

The functional theory of counterfactual thinking.

Counterfactuals are thoughts about alternatives to past events, that is, thoughts of what might have been. This article provides an updated account of the functional theory of counterfactual thinking, suggesting that such thoughts are best explained in terms of their role in behavior regulation and performance improvement. The article reviews a wide range of cognitive experiments indicating that counterfactual thoughts may influence behavior by either of two routes: a content-specific pathway (which involves specific informational effects on behavioral intentions, which then influence behavior) and a content-neutral pathway (which involves indirect effects via affect, mind-sets, or motivation). The functional theory is particularly useful in organizing recent findings regarding counterfactual thinking and mental health. The article concludes by considering the connections to other theoretical conceptions, especially recent advances in goal cognition.     

动机冲突下2~4岁幼儿反事实思维理解的发展

采用故事法, 考察在3种动机冲突下幼儿反事实思维理解的发展。结果表明：(1) 2岁幼儿的加法、减法反事实思维得分显著高于替代反事实思维。(2)在加法反事实任务中, 2岁幼儿显著低于4岁幼儿;在减法反事实任务中, 3个年龄组得分有显著性差异。(3)在趋避冲突下, 加法与减法反事实得分都显著高于替代反事实。(4)在结果反事实理解任务中, 随着年龄增长, 幼儿结果反事实思维理解能力有显著提高。     

Counterfactual thinking about controllable events

When people think about what might have been, they mentally undo controllable rather than uncontrollable events. We report the results of two experiments in which we examined this controllability effect in counterfactual thinking. The experiments show that the mutability of controllable events is influenced by the perceived appropriateness or inappropriateness of the events. The first experiment shows that people change inappropriate controllable actions more than appropriate controllable ones. The second experiment shows that people mutate inappropriate controllable events whether the outcome is exceptional or normal with respect to intrapersonal habitual norms, and whether the outcome is positive or negative. We discuss the implications for alternative theories of counterfactual thinking.