利他惩罚的发生机制及其神经基础

利他惩罚是指个体为惩罚违反社会规范的人而自愿个人支付成本,它在人类合作演化过程中扮演着重要的作用。"认知控制"与"情绪满足"被用来阐述利他惩罚的产生机制。而神经层面的研究也发现,利他惩罚主要涉及以背外侧前额叶皮层为主的基于规则的系统和包括纹状体、内侧前额叶皮层以及脑岛等脑区在内的情绪驱动系统。此外,5-羟色胺、多巴胺等神经递质可能是利他惩罚行为发生的神经生化基础。未来研究除了需进一步深入探讨与整合利他惩罚的发生机制、神经机制、基因机制以外,还应注重利他惩罚在自然情境下的研究。     

积极情绪与身心健康关系研究的进展

积极情绪与身体健康、心理健康和社会适应有密切的关系。首先,积极情绪不仅能够降低传染性疾病的感染风险,能够影响非传染性疾病病情、病程及死亡率。其次,积极情绪能够降低个体的心理易感性,使个体更好的应对负性或压力事件。最后,现有的研究表明积极情绪和社会交往存在相互促进的关系。现存的直接效应模型和压力缓冲模型解释了积极情绪直接和间接促进健康的机制。未来的研究还需在研究方法和模型完善等方面进一步改进。     

第三方惩罚的神经机制：来自经颅直流电刺激的证据

第三方惩罚既是社会规范在群体得以维系的基石, 也是个体维护社会规范的体现。当前关注社会规范的神经研究大多基于第二方惩罚的独裁者或最后通牒实验框架, 缺乏对第三方维护社会规范过程中相关脑区活动的探索, 对这一过程的内在神经机制也不清楚。本文基于第三方惩罚的独裁者博弈框架, 对右侧背外侧前额叶区域(DLPFC)进行不同极性的经颅直流电刺激(tDCS), 同时依据第三方是否需要为其惩罚付出成本设计了零成本和有成本两个实验任务。结果发现, 第三方在零成本任务的情绪反应和惩罚显著受到tDCS设置的影响, 且阴极刺激显著提升了第三方的惩罚值, 这表明情绪机制对第三方惩罚有着重要影响。另外, 第三方在零成本和有成本任务中的惩罚差异在不同tDCS设置之间也存在显著差异, 这与第三方惩罚还受到自利机制影响的观点相符。本文率先为右侧DLPFC活动影响第三方惩罚提供了神经层面的证据, 且支持了第三方对社会规范的遵从与其负性情绪反应和自利加工密切相关的机制解释。     

The effect of decision timing on the willingness to costly reward cooperation and punish noncooperation: Sanctioning the past,the present,or the future

Numerous studies have demonstrated that sanctions can promote cooperation. However, it is important to know not only that sanctions can work but also under what conditions people are actually willing to sanction cooperation positively (i.e., reward) or noncooperation negatively (i.e., punish). In this article, we demonstrate that people use sanctions less often and sanction more mildly when they decide about sanctioning before (instead of after) the occurrence of others' (non)cooperation (Experiments 1 and 2), regardless of whether they decide directly afterwards or after a time delay (Experiment 2). Moreover, we reveal that beforehand (as compared with afterwards) people have not yet formed clear sanctioning preferences (Experiment 3). These findings corroborate our reasoning that the decision environment beforehand induces nonconsequential reasoning and thereby hampers people's willingness to sanction. We discuss the theoretical, methodological, and practical implications of our work.     

Time for change: using implementation intentions to promote physical activity in a randomised pilot trial

Objective: A common barrier to exercise is a perceived lack of time. The current pilot study examined the effects of an implementation intention intervention to enhance exercise self-efficacy, increase confidence to exercise when facing time constraints, and increase physical activity in middle-aged adults (n?=?63, aged 35–69). Design: Participants received a pedometer (Fitbit) to objectively measure activity and were randomly assigned to either a control or intervention condition. After a 1-week baseline, the intervention condition received instructions to plan how, where, and when they would add steps to their daily routine to meet their step goal, using personalised schedules and maps. Both groups were contacted nightly via email. Main Outcome Measures: Physical activity (steps and time spent in moderate-to-vigorous activity), goal achievement, exercise self-efficacy, time-relevant exercise self-efficacy and affect. Results: Compared to the control, the intervention condition significantly increased in steps, time spent in moderate-to-vigorous activity, and time-relevant exercise self-efficacy. Goal achievement was related to greater time-relevant exercise self-efficacy and more positive affect at the daily level. Conclusion: Findings suggest that the personalised planning intervention increased physical activity and confidence in achieving physical activity goals under time constraints. Avenues for future directions, especially for producing more sustained effects, are discussed.     

Self‐determination among adolescents with physical disabilities in Zimbabwean inclusive‐community setting: an exploratory study

The purpose of this study was to explore self‐determination among adolescents with physical disabilities living in inclusive‐community settings of Makonde Urban, Zimbabwe. An inclusive community is one that aims to remove exclusionary practices within the community and promote community systems that accept all people irrespective of their difference. Inclusive communities on their own are not uniquely designed for people with disabilities, but they have been adopted by most developing countries as a basic strategy to influence and enhance self‐determination among people with disabilities. A constructivist‐lived experience perspective underpinned this research, in which multiple case studies were used to interact with the participants on inclusion and self‐determination in adolescents with physical disabilities. Fourteen participants, 9 males and 5 females, were purposively sampled. Data were collected through face‐to‐face interviews and transcribed verbatim. Three themes emerged from the inductive thematic analysis of data sources. It was found that participants were having low levels of self‐determination in choosing inclusive‐community activities to participate at home, at school, and in their communities. The findings of this study have the potential for the inclusive communities' policy makers and researchers to better understand the level of self‐determination in choosing inclusive‐community activities to participate among adolescents with physical disabilities in inclusive‐community settings.     

The unique influence of attachment to god on forgiveness among incarcerated males

Religious constructs associated with forgiveness are understudied among incarcerated males. Attachment and forgiveness theory supported hypotheses that attachment to God would uniquely influence forgiveness, controlling for other biopsychosocial resources in regression modeling. Results, utilizing data collected from 261 male prison inmates, ages 45 to 82, demonstrated that each of three blocks of predictors explained significant amounts of variance in forgiveness: (1) biological and control variables; (2) social support and positive evaluation of life; and (3) attachment to God. The final model explained 53.7% of the total variance. Discussion focuses on the use of attachment to God and forgiveness assessments.     

第三方惩罚的演化与认知机制

第三方惩罚一般是指当违反社会规范的行为与自身利益无关时,个体牺牲自我利益来惩罚违规者的行为。最近的研究发现,对于个体而言,第三方惩罚是一种具有适应性的信号,包括建立良好的声誉以及威慑违规者。不同情境下第三方惩罚的功能有所差异,它是一种特殊的利他行为。第三方惩罚依赖于多个系统,涉及情绪反应、共情等社会认知能力以及认知控制等中央执行能力。探讨该行为的演化和认知机制也能贡献于个体、群体和人际层面的社会心理服务工作。     

Carry-over effect between diet and physical activity: the bottom-up and top-down hypotheses of hierarchical self-efficacy

Healthy diet and physical activity have consistently been found to be positively correlated; however, most health behavior theories are focused on regulation of changes in single, rather than multiple, behaviors. Thus, this study explored the mechanism of the carry-over effect between diet and physical activity by conducting a longitudinal study with 706 participants to test the bottom-up and top-down hypotheses of hierarchical self-efficacy (SE). At Time 1 (baseline) and Time 3 (4 weeks after baseline), dietary behavior, physical activity, and self-efficacies of these behaviors (at the contextual level) were measured, while at Time 2 (2 weeks after baseline), general SE (at the general level) was assessed. Mediation analysis and structural equation models supported both the bottom-up and top-down hypotheses for different levels of self-efficacies, suggesting that hierarchical SE is an important factor underlying the carry-over mechanism between diet and physical activity.