Changes in Multidigit Synergies and Their Feed-Forward Adjustments in Multiple Sclerosis

The authors explored the changes in multidigit synergies in patients with multiple sclerosis (MS) within the framework of the uncontrolled manifold hypothesis. The specific hypotheses were that both synergy indices and anticipatory synergy adjustments prior to the initiation of a self-paced quick action would be diminished in the patients compared to age-matched controls. The MS patients and age-matched controls (n = 13 in both groups) performed one-finger and multifinger force production tasks involving both accurate steady-state force production and quick force pulses. The patients showed significantly lower maximal finger forces and a tendency toward slower force pulses. Enslaving was increased in MS, but only in the lateral fingers (index and little). Indices of multifinger synergies during steady-state force production were lower in MS, mainly due to the lower amount of intertrial variance that did not affect total force. Anticipatory synergy adjustments were significantly delayed in MS. The results show that MS leads to significant changes in multidigit synergies and feed-forward adjustments of the synergies prior to a quick action. The authors discuss possible contributions of subcortical structures to the impaired synergic control.     

生态化微表情识别测验EMERT的建立——对JACBART微表情识别测验的改进与发展

经典JACBART微表情识别测验只考察平静表情背景下微表情识别,生态效度不高。本研究创建生态化微表情识别测验,考察所有7种基本表情背景下的6种微表情识别特征。结果发现:(1)该测验具有良好的重测信度、校标效度和生态效度,能够稳定有效地测量生态化微表情识别。(2)信效度检验揭示了生态化微表情识别特征。某些生态化微表情识别存在训练效应。生态化微表情与经典微表情或普通表情普遍相关。恐惧、悲伤、厌恶、愤怒微表情背景主效应显著;惊讶和愉快微表情背景主效应不显著,成对比较发现各背景下惊讶/愉快微表情差异不显著,但是与普通表情有广泛的显著差异。用不同背景下微表情识别正确率的标准差定义生态化微表情识别波动,发现生态化微表情识别具有稳定的波动性。     

建议采纳的情绪机制

建议采纳过程中的情绪研究主要以向决策者提供与其情绪特征相适应的建议为思路,从情绪效价发展到对具体情绪的探索,从情绪影响认知加工策略拓展到对情绪认知评估特征的分析。文章结合对过往实证研究的分析,以情绪渗透理论、情绪社会信息理论、评估倾向框架为依据,对建议采纳中决策者的情绪来源、情绪影响建议采纳的过程机制进行分析与阐述,构建建议采纳的情绪机制模型,并以近年来的研究热点--愤怒情绪做示例分析。未来研究可进一步探讨情绪对建议采纳的直接作用、先前情绪与整合情绪的关系与作用,以及结合新兴情绪理论丰富建议采纳领域的研究。     

基于大数据的文化心理分析

随着大数据技术与文化心理学的融合发展, 计算文化心理学作为一门新兴交叉学科逐渐兴起, 大尺度、近乎全样本的文化心理分析真正得以实现。计算文化心理学关注的文化变量主要围绕个人主义/集体主义这一文化心理学使用最为广泛的维度展开, 分析方法包括特征词典、机器学习、社会网络分析、仿真模拟等, 分析思路包括时间维度上的文化变迁效应以及空间维度上的文化地理效应。当然, 计算文化心理学在为传统文化心理研究提供新方法、新范式的同时, 也存在解码失真、样本偏差、词语多义性、隐私风险等局限, 未来研究应重视变量理论解释、文化动态演化分析、学科深度整合、生态效度等问题。     

死亡凸显对消费者体验性消费选择偏好的影响及其作用机制

消费者的决策心理与购买行为会受到周边环境暴露的死亡信息的影响发生变化。本文从意义维持模型出发,通过4个实验探讨了死亡凸显对消费者体验性消费选择偏好的影响及其作用机制。结果发现,死亡凸显情境下消费者更倾向选择体验性消费。进一步分析发现,死亡凸显通过降低消费者的生命意义感提高了其对体验性消费的选择偏好。同时,社会支持对此间接效应起到了缓冲作用。研究结果初步揭示,补偿生命意义感的缺失是死亡凸显增加体验性消费选择的潜在机制,这也为新冠疫情背景下的消费者决策行为干预提供了一定参考。     

实习初期教师职业认同的发展轨迹及其与主动性人格的关系:一项追踪研究

采用主动性人格量表、工作绩效量表、人际关系量表、教师职业认同量表对385名实习教师从其实习第一周起连续追踪测量五周,利用多层线性模型探讨实习初期教师职业认同的发展轨迹,以及主动性人格对教师职业认同的影响及其机制。结果表明：(1)实习初期教师职业认同呈先高后低再升高的U型非线性发展趋势;(2)工作绩效和人际关系在主动性人格与教师职业认同之间起部分中介作用,且工作绩效的中介效应显著大于人际关系的中介效应。研究结果不仅揭示了实习初期教师职业认同的动态发展轨迹,同时还揭示了主动性人格影响教师职业认同的中介机制,对提升教师培养质量具有重要的参考价值。     

CONFUCIAN ENVIRONMENTAL ETHICS,CLIMATE ENGINEERING,AND THE “PLAYING GOD” ARGUMENT

The burgeoning literature on the ethical issues raised by climate engineering has explored various normative questions associated with the research and deployment of climate engineering, and has examined a number of responses to them. While researchers have noted the ethical issues from climate engineering are global in nature, much of the discussion proceeds predominately with ethical framework in the Anglo‐American and European traditions, which presume particular normative standpoints and understandings of human–nature relationship. The current discussion on the ethical issues, therefore, is far from being a genuine global dialogue. The aim of this article is to address the lack of intercultural exchange by exploring the ethics of climate engineering from a perspective of Confucian environmental ethics. Drawing from the existing discussion on Confucian environmental ethics and Confucian ethics of technology, I discuss what Confucian ethics can contribute to the ethical debate on climate engineering.     

性别刻板印象的人际传播特点研究——基于社会认同理论或社会支配理论?

为探讨性别刻板印象的传播更符合社会认同理论还是社会支配理论的假设,采用单一复述故事法来研究不同性别的传播者、故事主人公和听众在传播一致性性别刻板印象信息和不一致性别刻板印象信息的过程中所表现出的特点。结果发现:男性更少地传播不利于维持阶层差异的不一致性刻板印象,女性更多地传播打破现有阶层划分的男性不一致刻板印象。这些传播特点都较为支持社会支配理论的假设。。     

自我惩罚：影响因素、模型与展望

自我惩罚是个体在违反社会规范后,自愿使自己承受伤害或蒙受损失的行为。自我惩罚会受到负性情绪、补救机会、代偿机会和性别的影响。情绪模型和互惠模型分别从情绪和互惠的角度阐述了自我惩罚的认知机制。根据近期的研究结果,可以推测自我惩罚与前扣带回、脑岛、右外侧眶额叶皮层、背内侧前额叶皮层、伏隔核、腹内侧前额叶皮层有关。未来值得研究的方向有：进一步确认自我惩罚涉及的情绪成分、为互惠模型收集更多实验证据、探究自我惩罚对集体合作的影响以及开展跨文化研究。