Genetic and caregiving-based contributions to infant attachment: unique associations with distress reactivity and attachment security

In the longitudinal study reported here, we examined genetic and caregiving-based contributions to individual differences in infant attachment classifications. For 154 mother-infant pairs, we rated mothers' responsiveness to their 6-month-old infants during naturalistic interactions and classified infants' attachment organization at 12 and 18 months using the Strange Situation procedure. These infants were later genotyped with respect to the serotonin-transporter-linked polymorphic region (5-HTTLPR). Maternal responsiveness uniquely predicted infants' attachment security. Infants' 5-HTTLPR variation uniquely predicted their subtype of attachment security at 12 months and their subtype of attachment insecurity at 12 and 18 months. The short allele for 5-HTTLPR was associated with attachment classifications characterized by higher emotional distress. These findings suggest that 5-HTTLPR variation contributes to infants' emotional reactivity and that the degree to which caregivers are responsive influences how effectively infants use their caregivers for emotion regulation. Theoretical implications for the study of genetic and caregiving influences are discussed.     

Cardiovascular intraindividual variability in later life: the influence of social connectedness and positive emotions

Healthy normotensive men and women (N=33) underwent a 60-day diary assessment of emotions and cardiovascular functioning. Individual differences in social connectedness and mood were measured in questionnaires, and positive emotions, negative emotions, systolic blood pressure (SBP), and diastolic blood pressure (DBP) were assessed daily for 60 consecutive days. Results confirmed that the cardiovascular undoing effect of positive emotions is evident primarily in the context of negative emotional arousal. The daily associations between positive emotions and cardiovascular outcomes were linked to individual differences in social connectedness. Controlling for individual differences in mood levels, multilevel regression analyses showed that social connectedness predicted extended positive emotion, diminished SBP and DBP reactivity, and more rapid SBP recovery from daily negative emotional states.     

Gaze aversion during social interaction in preterm infants: a function of attention skills?

Preterm infants avert their gaze more often and for longer periods in early social interactions compared to full term infants. In previous studies this finding is interpreted as being a function of the higher degree of parental stimulation that is often found in parents of preterm children. The current study explores an additional hypothesis. Since the development of general visual attention abilities is found to be less optimal in preterm children, it is possible that less optimal maturation of attention abilities partially explains the elevated gaze aversion in a social context. Therefore, the current study investigated the association between gaze aversion in a social context and the ability to disengage and shift visual attention in a non-social context in 20 preterm and 42 full term infants aged 4 and 6 months. Results confirm that preterm infants are slower to shift their attention in a non-social context and that they avert their gaze more often in a social context compared to full term children. Furthermore, more frequent gaze aversion during social interaction at 6 months was related to longer disengagement and the shifting of attention at 4 and 6 months, but only within the preterm group. The results suggest that attention maturation is less optimal in preterm children; this can be observed in a non-social as well as a social context. Less attention maturation in preterm children can negatively influence the amount of time they can stay actively involved in social interaction.     

右腹外侧前额叶对高抑郁水平成年人社会情绪调节的作用：一项tDCS研究

已有的经颅直流电刺激(transcranial direct current stimulation, tDCS)研究证明, 右腹外侧前额叶(right ventrolateral prefrontal cortex, RVLPFC)是社会情绪调节的重要脑区, 激活RVLPFC可显著降低人们对社会性负性情绪体验的强度。社会功能受损是抑郁症患者或抑郁倾向人群的重要特征之一。该群体对社会排斥的敏感性高, 且对负性社会情绪体验的情绪调节能力降低。在本研究中, 我们采用外显的情绪调节任务, 研究了高、低抑郁水平的两组成年人被试在RVLPFC接受阳性tDCS后其情绪调节能力的改变。结果表明, 虽然采用tDCS激活RVLPFC可帮助被试通过情绪调节(认知重评)减弱负性情绪体验, 但高抑郁水平被试的负性情绪强度下降程度明显小于低抑郁水平被试。另外本文还发现, 与源于个人的负性情绪相比, tDCS效应对源于社会的负性情绪(即社会排斥)更强。本研究是采用电或磁刺激提高抑郁人群社会情绪调节能力的首次尝试。实验结果表明, 高抑郁水平成年人的RVLPFC仅通过单次、短时间(34 min)的tDCS激活, 其情绪调节能力并未得到显著提升。这提示对抑郁倾向群体或抑郁症患者的干预或治疗需要多次施加tDCS。     

Desire for emotional closeness moderates the effectiveness of the social regulation of emotion

The present study examined whether individual differences in the desire for emotional closeness moderate the effectiveness of the social regulation of emotion. Using a within-subjects design, 195 undergraduates viewed strongly negative images in two conditions: (a) when holding the hand of an anonymous research assistant seated behind a curtain; and (b) when alone. Participants reported and exhibited less affect to the negative slides when holding hands than when seated alone. Moreover, desired emotional closeness moderated the effectiveness of handholding, as measured by facial expressivity, such that the effectiveness of handholding was positively associated with desired emotional closeness. The moderating role of desired emotional closeness remained when accounting for attachment style and the need for affiliation. This finding indicates that the effectiveness of the social regulation of emotion is moderated by the degree to which individuals desire emotional closeness. Thus, examining individual differences in the desire for emotional closeness may be helpful when investigating emotional responses to social interactions, such as the social regulation of emotion.     

Genetic and Environmental Pathways Underlying Personality Traits and Perceived Stress: Concurrent and Longitudinal Twin Studies

The present study examined the genetic and environmental etiology underlying the Big Five personality traits and perceived stress, concurrently and longitudinally. In study 1, we used the twin sample from the National Longitudinal Study of Adolescent to Adult Health (Add Health IV) data. The results indicated that about 70% of the association between the Big Five personality traits and perceived stress was due to genetic influences. In study 2, we used the twin sample from the Midlife in the United States Survey (MIDUS I and II) to examine the genetic and environmental influences underlying the longitudinal relations between the Big Five personality traits and perceived stress. The results suggested that continuity in perceived stress was primarily accounted for by genetic influences, and changes in perceived stress were mainly due to nonshared environmental influences. The continuity in the association between the five personality traits and perceived stress was largely accounted for by genetic factors, and nonshared environmental factors made greater contributions to changes in the association between personality traits and perceived stress. Among the Big Five personality traits, the genetic components in conscientiousness and neuroticism made substantial contributions to the genetic link between personality traits and perceived stress across both studies. Copyright © 2017 European Association of Personality Psychology     

12-month-old infants allocate increased neural resources to stimuli associated with negative adult emotion

Young infants use caregivers' emotional expressions to guide their behavior in novel, ambiguous situations. This skill, known as social referencing, likely involves at least 3 separate abilities: (a) looking at an adult in an unfamiliar situation, (b) associating that adult's emotion with the novel situation, and (c) regulating their own emotions in response to the adult's emotional display. The authors measured each of these elements individually as well as how they related to each other. The results revealed that 12-month-olds allocated more attention, as indicated by event-related potential measures, to stimuli associated with negative adult emotion than to those associated with positive or neutral emotion. Infants' interaction with their caregiver was affected by adult emotional displays. In addition, how quickly infants referenced an adult predicted both their brain activity in response to pictures of stimuli associated with negative emotion as well as some aspects of their behavior regulation. The results are discussed with respect to their significance for understanding why infants reference and regulate their behavior in response to adult emotion. Suggestions for further research are provided.     

Gaze avoidance in social phobia: Objective measure and correlates

Gaze aversion could be a central component of the physiopathology of social phobia. The emotions of the people interacting with a person with social phobia seem to model this gaze aversion. Our research consists of testing gaze aversion in subjects with social phobia compared to control subjects in different emotional faces of men and women using an eye tracker. Twenty-six subjects with DSM-IV social phobia were recruited. Twenty-four healthy subjects aged and sex-matched constituted the control group. We looked at the number of fixations and the dwell time in the eyes area on the pictures. The main findings of this research are: confirming a significantly lower amount of fixations and dwell time in patients with social phobia as a general mean and for the 6 basic emotions independently from gender; observing a significant correlation between the severity of the phobia and the degree of gaze avoidance. However, no difference in gaze avoidance according to subject/picture gender matching was observed. These findings confirm and extend some previous results, and suggest that eye avoidance is a robust marker of persons with social phobia, which could be used as a behavioral phenotype for brain imagery studies on this disorder.     

The social signal value of emotions

Human interactions are replete with emotional exchanges. In these exchanges information about the emotional state of the interaction partners is only one type of information conveyed. In addition, emotion displays provide information about the interaction partners' disposition and the situation as such. That is, emotions serve as social signals. Acknowledging this role of emotions, this special section brings together research that illustrates how both person perception and situational understanding can be derived from emotional displays and the modulation of this process through context. Three contributions focus on information about expressers and their intentions. An additional article focuses on the informative value of emotional expressions for an observer's construal of social situations and another article exemplifies the way context determines the social impact of emotions. Finally, the last article presents the dynamic nature of mutual influence of emotions. In an attempt to integrate these contributions and offer lenses for future research, this editorial offers a contextualised model of social perception which attempts to systematise not only the types of information that emotion expressions can convey, but also to elaborate the notion of context.     

The shared signal hypothesis: Effects of emotion‐gaze congruency in infant and adult visual preferences

In this study, 4‐month‐old infants’ and adults’ spontaneous preferences for emotional and neutral displays with direct and averted gaze are investigated using visual preference paradigms. Specifically, by presenting two approach‐oriented emotions (happiness and anger) and two avoidance‐oriented emotions (fear and sadness), we asked whether the pattern of emotion–gaze interaction suggested by the shared signal hypothesis (SSH) would also be found with this paradigm. Both age groups demonstrated an ability to discern the approach‐ and avoidance‐oriented emotions, matching them with direct and averted gaze, respectively. Nonetheless, infants showed a greater sensitivity for the congruent emotion‐gaze combination in the approach‐oriented emotions, while adults were equally sensitive to the gaze‐expression congruence for both the approach‐ and avoidance‐oriented emotions. In a follow‐up experiment, infants showed no preference for direct or averted gaze in the context of neutral faces. We conclude that the SSH may have validity from infancy, gradually extending from approach‐oriented emotions to avoidance‐oriented emotions over the course of development.     

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。     

Longitudinal genetic analysis of anxiety sensitivity

Anxiety sensitivity is associated with both anxiety and depression and has been shown to be heritable. Little, however, is known about the role of genetic influence on continuity and change of symptoms over time. The authors' aim was to examine the stability of anxiety sensitivity during adolescence. By using a genetically sensitive design, the authors were also able to investigate the extent to which genetic and environmental factors influence anxiety sensitivity over time. Self-reports of anxiety sensitivity were obtained for over 1,300 twin and sibling pairs at 3 time points. Data were analyzed using multivariate genetic models. Anxiety sensitivity was moderately heritable at all time points with substantial nonshared environmental contributions. Time 1 genetic factors accounted for continuity of symptoms at Times 2 and 3. New genetic factors at Time 2 also influenced Time 3 symptoms. New nonshared environmental influences emerged at each time point. Analysis of a latent factor of trait anxiety sensitivity revealed some stable nonshared environmental influences. Genetic effects were generally stable over time, with new genetic influences emerging in late adolescence. Environmental influences on anxiety sensitivity were, on the whole, more time specific; however, some stable environmental influences were also found.     

What gene-environment interactions can tell us about social competence in typical and atypical populations

Social competence is a complex human behaviour that is likely to involve a system of genes that interacts with a myriad of environmental risk and protective factors. The search for its genetic and environmental origins and influences is equally complex and will require a multidimensional conceptualization and multiple methods and levels of analysis. Behavioural genetic research can begin to address the fundamental yet complex question of how children develop social competence by uncovering the various influences on social development and disentangling variance due to multiple genes, environments and experiences. In this paper, we review the current status of research on sociability, face recognition, emotion recognition, and theory of mind (TOM)--well defined and measured constructs that are likely to be useful indices for detecting genetic and environmental influences on social competence. We also propose specific milestones as indices of further progress in the field: the development of an operational definition of the construct of social competence, the identification of social endophenotypes-psychological processes that are validly and reliably measured components of social competence, and improving specificity and homogeneity with regard to social endophenotypes within a population of study by employing 'extreme social phenotypes'. These efforts will lead to a better understanding of the specific contributions to the normal variation of social competence in the general population as well as to atypical social development.     

社交焦虑大学生情绪调节灵活性：情绪内容对策略选择和使用的影响

尽管社交焦虑个体被认为存在情绪调节灵活性的不足,但至今尚不清楚这种不足究竟在于难以灵活选择策略,还是难以灵活使用策略,抑或二者兼有？对此,本研究采用情绪调节策略选择任务考察了37名高社交焦虑大学生和29名低社交焦虑大学生在面对社交-非社交情绪图片时对认知重评-回避策略的选择模式和使用效果。结果发现：在面对社交情绪图片时,高社交焦虑被试比低社交焦虑被试更少选择认知重评,而更多选择回避;在面对非社交情绪图片时,两组被试对两种策略的选择模式无显著差异。同时,无论面对社交还是非社交情绪图片,两组被试对两种策略的使用效果也无显著差异。以上结果表明,相比低社交焦虑个体,高社交焦虑个体只有在面对社交情绪刺激时才存在情绪调节灵活性的不足,且这种不足主要在于难以灵活选择策略,而非难以灵活使用策略。     

Gaze avoidance: Personality and social judgments of people who avoid direct face-to-face contact

Some people maintain direct, face-to-face contact during interaction, whereas others avert their gaze or turn their face while interacting. Research on individual differences in gaze avoidance, while sparse, falls into two areas. One concerns the personality and psychopathology correlates of gaze aversion, and the other concerns social judgments made of people who avert their gaze during interaction. The findings generally show that gaze aversion is associated with unfavorable traits (shyness, social anxiety, risk for schizophrenia) and negative social evaluations (gaze averse people are rated as more deceptive and less sincere). The present study took advantage of an archival data set that contained facial photographs from which gaze avoidance could be scored. The correlates of gaze avoidance were different for men and women. Gaze avoidant men tended to be emotionally inhibited and overcontrolled, and reported a high incidence of various psychosomatic and physical symptoms. Gaze avoidant women, on the other hand, were high on measures of psychopathy, hysteria, and traditional femininity, they tended to have fewer physical symptoms. Gaze avoidant women were also viewed by others in a negative light (as being disagreeable, unconscientious, unattractive, and even somewhat lower on intelligence). In males, none of the social judgment variables correlated significantly with gaze avoidance. Results are discussed in terms of sex differences in the meaning and communicative function of this non-verbal social behavior.     

An Ecological Investigation of the Emotional Context Surrounding Nonsuicidal Self‐Injurious Thoughts and Behaviors in Adolescents and Young Adults

Ecological momentary assessment (EMA ) methodology was used to examine the emotional context of nonsuicidal self‐injury (NSSI). Forty‐seven adolescents and young adults used a novel smartphone app to monitor their emotional experiences, NSSI thoughts, and NSSI behaviors for 2 weeks. Momentary changes in both negative and positive emotions predicted greater intensity of NSSI thoughts at the subsequent assessment, while only increases in negative emotion predicted NSSI behaviors. Immediately following NSSI behaviors participants reported reduced high‐arousal negative emotions and increased low‐arousal positive emotions, suggesting that NSSI may be an efficient and effective method of regulating emotion. Findings highlight the importance of addressing emotion regulation in NSSI interventions.     

Infant emotion regulation: Relations to bedtime emotional availability,attachment security,and temperament

The present study examines the influences of mothers’ emotional availability toward their infants during bedtime, infant attachment security, and interactions between bedtime parenting and attachment with infant temperamental negative affectivity, on infants’ emotion regulation strategy use at 12 and 18 months. Infants’ emotion regulation strategies were assessed during a frustration task that required infants to regulate their emotions in the absence of parental support. Whereas emotional availability was not directly related to infants’ emotion regulation strategies, infant attachment security had direct relations with infants’ orienting toward the environment and tension reduction behaviors. Both maternal emotional availability and security of the mother–infant attachment relationship interacted with infant temperamental negative affectivity to predict two strategies that were less adaptive in regulating frustration.     

Genetic and environmental contributions to general cognitive ability through the first 16 years of life

The genetic and environmental contributions to the development of general cognitive ability throughout the first 16 years of life were examined using sibling data from the Colorado Adoption Project. Correlations were analyzed along with structural equation models to characterize the genetic and environmental influences on longitudinal stability and instability. Intraclass correlations reflected both considerable genetic influence at each age and modest shared environmental influence within and across ages. Modeling results suggested that genetic factors mediated phenotypic stability throughout this entire period, whereas most age-to-age instability appeared to be due to nonshared environmental influences.     

Adolescents' relationships to siblings and mothers: a multivariate genetic analysis.

Research has consistently demonstrated that children's behavior toward their siblings tends to resemble interactions occurring in the parent-child relationship. This study examined the relative contributions of genetic and environmental influences to the covariation between sibling relationships and mother-adolescent relationships. Reported and observed family interactions were assessed for 719 same-sex sibling pairs of varying degrees of genetic relatedness. The covariance between mother-adolescent and sibling interactions was decomposed into genetic, shared, and nonshared environmental components. The overlapping effects of shared environment on the two relationship subsystems explained most of the covariance. Smaller but significant genetic and nonshared environmental effects were also found. The consistency of these findings with family processes, such as modeling, is discussed.     

Emotion Regulation: The Interplay of Culture and Genes

Given the mounting empirical evidence to support both the cultural and biological shaping of emotional processes, there is a clear need to integrate these determinants of emotional processes. Much in the same vein as these efforts, in our research on gene‐culture interactions, we have examined how cultural and biological factors jointly influence emotion regulation. The present paper specifically aims to present research considering both cultural and genetic factors as two interacting influences that shape emotion regulation. A series of studies conducted to test the gene‐culture interaction involving OXTR rs53576 consistently show that individuals with the variant that is associated with socio‐emotional sensitivity tend to utilize culturally normative forms of emotion regulation more than those without it. These findings underscore the importance of considering the interplay between socio‐cultural and genetic factors that shape social behaviors.