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。     

心率变异性在心身疾病和情绪障碍研究中的应用

心率变异性的频谱成分可单独反映交感神经和副交感神经活动的影响。高频（HF）是由迷走神经单独介导；低频（LF）受迷走神经和交感神经共同调制，但主要反映交感神经的活动性 。此指标可对高血压、冠心病和月经前期烦躁等心身障碍进行评价。该文还探讨了它用于情绪研究的价值，并认为在不同情绪体验期间的自主神经活动有多种搭配模式，正常人与情绪障碍者之间以及情绪障碍（抑郁、焦虑、恐怖、强迫）患者在自主神经活动方面可能存在显著差别     

运动员情绪调节心率变异性的特点

该研究采用实验法,以183名大学生运动员为被试,以心率变异性为指标,在情绪诱发和认知任务的两种情况下,系统考察了不同情绪状态、不同情绪调节策略下运动员自主神经反应的特点,结果表明:情绪诱发情况下,运动员心率变异性分别受情绪状态和情绪调节策略影响.正性情绪的情绪稳定性小于负性情绪,认知重评策略更为有效;认知任务情况下,运动员心率变异性受情绪状态和情绪调节策略的共同影响.负性情绪条件下表达抑制策略的效果减弱,正性情绪条件下认知重评策略更为有效.     

情绪加工中杏仁核的效价特异性

杏仁核是情绪信息加工的关键脑区。近年来心理学和神经科学领域发现了杏仁核情绪加工的效价特异性现象,并且整体存在左侧杏仁核对正性情绪、右侧杏仁核对负性情绪以及双侧杏仁核负性偏好的特异性趋势,且受到材料突出特征、个体差异、任务条件的调节。未来可进一步探索注意对杏仁核情绪效价特异性的调节作用,探究动态情绪刺激加工时杏仁核的活动特点,考察心理障碍患者加工负性情绪时的杏仁核激活模式,并确定杏仁核的效价特异性在思维、计划、决策等高级认知过程中的表现。     

心理应激的免疫抑制作用及其与神经内分泌反应的相关性

以给予经定时喂水训练大鼠空瓶刺激为情绪性心理应激源,研究了此情绪应激对大鼠特异性原发体液免疫反应的影响及其可能的作用机制。结果表明每次10分钟,共14次的情绪应激显著降低大鼠抗特异性抗原OVA的抗体水平及脾脏指数,而显著增高血肾上腺素、去甲肾上腺素和皮质酮水平。研究还发现去甲肾上腺素与抗特异性抗原OVA的抗体水平呈显著负相关。该研究证实了情绪性心理应激对大鼠体液免疫功能的抑制作用,并提示交感神经系统可能参与了此免疫调节作用。     

运动员情绪调节心率变异性的影响因素

以183名运动员为被试,以心率变异性为指标,考察不同情绪状态、不同情绪调节策略下运动员自主神经反应的性别、运动年限、运动等级特点。结果发现：（1）快乐情绪状态下的心率变异性显著高于悲伤情绪状态下;表达抑制的心率变异性显著高于认知重评;短运动年限运动员的心率变异性显著高于长运动年限运动员;男性运动员的心率变异性显著高于女性运动员。（2）在快乐情绪状态下采用表达抑制策略时,低运动等级运动员的心率变异性显著高于高运动等级运动员;在悲伤情绪状态下,高运动等级运动员采用表达抑制策略比认知重评策略产生更高的心率变异性     

不同时程应激对大鼠行为、免疫和交感神经系统反应的影响

研究旨在研究不同时程情绪应激诱导的大鼠行为、免疫和神经内分泌反应的动态变化及其相互关系。实验采用一种在程序性饮水的固定时间点不确定性给予大鼠空瓶刺激诱发其情绪反应的应激模式,测定不同时程（14,21和28天）应激对大鼠行为、交感神经系统反应、体液免疫功能及体重增长的影响。结果表明,情绪应激导致大鼠攻击行为显著增加,且在整个应激过程中情绪应激组大鼠的攻击行为都被稳定地诱导;不同时程的情绪应激均导致大鼠特异性抗OVA抗体水平明显降低,且降低的程度类似;在情绪应激的第14天和28天应激组大鼠血中去甲肾上腺素水平明显高于对照组,但后者升高的水平明显低于前者。此外,14天应激明显抑制大鼠的体重增长,但随着应激时程的延长,体重增长逐渐恢复。这些结果表明,随着应激时程的延长,大鼠行为、免疫和神经内分泌反应的适应性改变存在时程差异,有助于进一步了解应激诱发的各种反应间的复杂关系     

积极情绪加速心血管反应恢复的自主神经活动机制

通过对不同情绪唤醒状态下的心率变异性（HRV）和呼吸性窦性心率不齐（RSA）分析,探讨了积极情绪加速高唤醒消极情绪引起的心血管反应向基线恢复的自主神经活动机制。实验表明：与在观看高唤醒恐惧影片结束后观看悲伤影片和中性视频比较,观看高唤醒恐惧影片结束后观看快乐影片加速了高唤醒恐惧影片引起的心率、指脉等心血管反应向基线的恢复;与在观看高唤醒恐惧影片结束后观看悲伤视频和中性视频材料比较,观看高唤醒恐惧影片结束观看快乐影片后的恢复期,被试的迷走神经激活水平迅速增强,迷走神经激活水平甚至超过基线期。因此,积极情绪加速高唤醒消极情绪刺激引起的心血管反应向基线恢复,其自主神经活动机制是在积极情绪状态下个体有更强的迷走神经激活。     

情绪和社会行为的迷走神经活动基础

Porges基于自主神经进化观点提出的多迷走神经理论, 区分了无髓鞘迷走神经与髓鞘迷走神经的不同功能。认为对心脏等起调控作用的髓鞘迷走神经, 经由进化逐渐与调控头面部肌肉的脑神经之间产生了神经上的联系, 成为情绪和社会行为的神经基础。已有的相关实证研究表明, 髓鞘迷走神经与个体的情绪表达与调节、社会行为以及情绪与社会行为障碍密切相关。较低的迷走神经张力、较低的迷走抑制与较低的情绪调节能力相关; 迷走抑制较高的学前儿童有较少的行为问题以及较好的社交技能; 焦虑障碍的个体表现出较低的基线迷走张力以及较低的迷走抑制水平等。多迷走神经理论及其实证研究的结果, 对于推动情绪和社会行为的自主神经基础研究具有重要的意义。     

语音反应方式下情绪效价对空间Simon效应的影响

通过3个实验考察语音反应方式下情绪效价对空间Simon效应的影响。实验1采用空间Simon任务范式考察语音反应方式下空间Simon效应的存在;实验2增加刺激的情绪效价维度,采用同样任务考察无关情绪效价对空间Simon效应的影响;实验3在实验2基础上进一步探讨当情绪效价为相关维度时对空间Simon效应的影响。研究结果表明:语音反应方式下,只有当情绪效价为相关维度时,才会对空间Simon效应产生影响,且该影响主要表现在积极效价对认知控制的促进作用而导致空间Simon效应减小或消失,此结果与极性编码一致性假说一致,也拓宽了躯体特异性假说,扩展了以往对情绪影响空间认知的理解。     

正负性情绪的自主神经反应及应用

情绪可以唤醒自主神经系统, 伴随有一系列的生理变化。从基础研究的角度来看, 正负性情绪可以诱发心血管系统(如心率、血压、心率变异性)、皮肤电系统(如皮肤电导水平)、呼吸系统(如呼吸阻力、每分通气量)和其他系统(如瞳孔直径、胃肌电等)的活动及其变化。在应用研究方面, 正负性情绪诱发的自主神经反应可以应用在多个领域, 主要包括用户体验中的情绪测量、基于生理信号的人-机情感交互系统的开发, 以及消费者态度和偏好的测查等。对于现有研究结果中存在的分歧, 从被试的个体差异、诱导范式的不一致性和诱导效果的可靠性, 以及刺激材料属性的多样化等方面进行了分析, 指出了未来研究应该注意的问题。     

Prolegomenon to the structure of emotion: Gleanings from neuropsychology

Abstract

This article presents a model of the structure of emotion developed primarily from a consideration of neuropsychological evidence and behavioural data which have bearing on neuropsychological theories. Valence is first considered and highlighted as a defining characteristic of emotion. Next, the use of facial behaviour and autonomic nervous system patterns as defining characteristics of discrete emotions is questioned on empirical and conceptual grounds. The regulation of emotion is considered and proposed to affect the very structure of emotion itself. If there is an invariant pattern of biological activity across different instantiations of the same emotion, it is likely to be found in higher-order associative networks of central nervous system activity, the very same networks that subserve goal-directed behaviour and other cognitive functions. Drawing upon evolutionary considerations, it is argued that what is basic about emotion are the dimensions of approach and withdrawal. The nature of the linkage between such action tendencies and emotion is discussed.     

Central and autonomic nervous system integration in emotion

Emotions involve physiological responses that are regulated by the brain. The present paper reviews the empirical literature on central nervous system (CNS) and autonomic nervous system (ANS) concomitants of emotional states, with a focus on studies that simultaneously assessed CNS and ANS activity. The reviewed data support two primary conclusions: (1) numerous cortical and subcortical regions show co-occurring activity with ANS responses in emotion, and (2) there may be reversed asymmetries on cortical and subcortical levels with respect to CNS/ANS interrelations. These observations are interpreted in terms of a model of neurovisceral integration in emotion, and directions for future research are presented.     

Feeling good: autonomic nervous system responding in five positive emotions

Although dozens of studies have examined the autonomic nervous system (ANS) aspects of negative emotions, less is known about ANS responding in positive emotion. An evolutionary framework was used to define five positive emotions in terms of fitness-enhancing function, and to guide hypotheses regarding autonomic responding. In a repeated measures design, participants viewed sets of visual images eliciting these positive emotions (anticipatory enthusiasm, attachment love, nurturant love, amusement, and awe) plus an emotionally neutral state. Peripheral measures of sympathetic and vagal parasympathetic activation were assessed. Results indicated that the emotion conditions were characterized by qualitatively distinct profiles of autonomic activation, suggesting the existence of multiple, physiologically distinct positive emotions.     

Forebrain emotional asymmetry: a neuroanatomical basis?

There is considerable psychophysiological evidence to indicate that the left and right halves of the human forebrain differentially associate with particular emotions and affective traits. A neurobiological model is needed. Here I propose that forebrain emotional asymmetry is anatomically based on an asymmetrical representation of homeostatic activity that originates from asymmetries in the peripheral autonomic nervous system. This proposal builds on recent evidence indicating that lateralized, higher-order re-representations of homeostatic sensory activity provide a foundation for subjective human feelings. It can subsume differing views of emotion and the forebrain because it suggests that emotions are organized according to the fundamental principle of autonomic opponency for the management of physical and mental energy.     

The influence of proximal risk on the early development of the autonomic nervous system

In this paper we review the evidence linking the early development of the autonomic nervous system in early childhood to four proximal risk factors: maternal stress during pregnancy, maternal substance use during pregnancy, poor-quality parent–child interactions, and specific disruptions in parenting behavior. A clear pattern of altered autonomic function emerges in children exposed to proximal risk, marked by reduced parasympathetic tone under conditions of both homeostasis and challenge, accompanied by increased sympathetic tone in some cases. This pattern of autonomic activity would support increased vigilance and active defense responses, which, in an environment of high proximal risk, may be adaptive in the short-term. However, in the long-term maintaining such a state may impose a high allostatic load. The current paper reviews and interprets the current literature and discusses future directions.     

The Body's Response to Processing Emotional Trauma: Linking Verbal Text with Autonomic Activity

ABSTRACT When individuals talk or think about upsetting experiences, different coping and defensive processes are invoked from one minute to the next. Further, some coping strategies are thought to be more effortful and to be associated with greater biological activity than others. The present research sought to identify how the expression of emotions and the use of different psychological defenses were reflected in momentary changes in autonomic nervous system activity while subjects wrote about emotional topics. A new methodology is introduced that links the production of natural written language with autonomic activity on a word-by-word or phrase-by-phrase basis. Using this technique with a sample of 24 subjects who wrote about traumatic experiences, it was found that certain text dimensions are highly related to skin conductance level (SCL) but not heart rate. In general, subjects' SCLs increased when expressing negative emotions and when using denial and the passive voice. SCLs were more likely to drop when subjects used positive emotion words and self-references and at the conclusion of sentences or thought units. Implications for this methodology for understanding psychological defense and physical health are discussed.     

Effects of nutritive and non-nutritive sucking on infant heart rate variability during the first 6 months of life

The effects of eating on heart rate variability (HRV) differ between adults and newborns. This may reflect the impact of suckling on the overall psychophysiological and autonomic nervous system maturation. The purpose of the present study was to explore whether the reactions of HRV during feeding change towards the adult pattern during the first 6 months of life. In addition, the effects of non-nutritive and nutritive sucking on heart rate (HR) and HRV were compared. The participants were 23 infants on whom recordings were performed as newborns and at 6, 12 and 24 weeks old. Nutritive sucking caused an increase in HR and a decline in HRV. The results were consistent with previous reports of a decrease in high frequency components of HRV during feeding in newborns, reflecting a decrease in parasympathetic activity. This response was apparent in all four ages studied, and remained similar throughout the 6-month period. However, age as an independent factor seemed to influence both HR and HRV. Pacifier sucking had no significant effects on HRV at any age. The results demonstrate the physical strain that sucking imposes on the baby, with a specific autonomic nervous system response involved. We consider this response an essential part of the overall psychophysiological maturation of infants.