风险对两类跨期选择的影响：一项ERP研究

该研究利用ERP技术,采用伴随风险的跨期选择任务比较了两类跨期选择（立即vs.延迟、延迟vs.延迟）,并探究了风险（零风险、低风险、高风险）对两者跨期选择影响的神经动力学机制。ERP结果显示,对于立即vs.延迟和延迟vs.延迟,在N2和N400上前者大于后者,在LPC上后者大于前者;风险对两者在时程上的影响趋于一致。因此,其加工可能是先对奖赏在风险维度上进行折扣,再与延迟时间进行整合形成奖赏预期,而后做出选择。     

Action representations activated by task‐irrelevant information: Is it really irrelevant?

Accessing action knowledge is believed to rely on the activation of action representations through the retrieval of functional, manipulative, and spatial information associated with objects. However, it remains unclear whether action representations can be activated in this way when the object information is irrelevant to the current judgment. The present study investigated this question by independently manipulating the correctness of three types of action‐related information: the functional relation between the two objects, the grip applied to the objects, and the orientation of the objects. In each of three tasks in Experiment 1, participants evaluated the correctness of only one of the three information types (function, grip or orientation). Similar results were achieved with all three tasks: “correct” judgments were facilitated when the other dimensions were correct; however, “incorrect” judgments were facilitated when the other two dimensions were both correct and also when they were both incorrect. In Experiment 2, when participants attended to an action‐irrelevant feature (object color), there was no interaction between function, grip, and orientation. These results clearly indicate that action representations can be activated by retrieval of functional, manipulative, and spatial knowledge about objects, even though this is task‐irrelevant information.     

Deformation behaviour and 6H-LPSO structure formation at nanoindentation in lamellar high Nb containing TiAl alloy

Microstructure and deformation mechanisms at a nanoindentation in the lamellar colony of high Nb containing TiAl alloy have been studied using the focused ion beam and the transmission electron microscopy. Considerable deformation twins are observed around the nanoindentation, and a strain gradient is generated. A continuous change in the bending angle of the lamellar structure can be derived, and a strain-induced grain refinement process is observed as various active deformations split the γ grains into subgrains. In addition to all possible deformation mechanisms (ordinary dislocation, super-dislocation and deformation twining) activated due to the heavy plastic deformation, a 6-layer hexagonal (6H) long-period stacking ordered structure is identified for the first time near the contact zone and is thought to be closely related to the glide of partial dislocations.     

Mental Health Diagnostic Considerations in Racial/Ethnic Minority Youth

Misdiagnoses of racial/ethnic minority youth’s mental health problems can potentially contribute to inappropriate mental health care. Therefore, we conducted a systematic review that focuses on current theory and empirical research in an attempt to answer the following two questions: (1) What evidence exists that supports or contradicts the idea that racial/ethnic minority youth’s mental health problems are misdiagnosed? (2) What are the sources of misdiagnoses? Articles were reviewed from 1967 to 2014 using PsychINFO, PubMed, and GoogleScholar. Search terms included “race”, “ethnicity”, “minority”, “culture”, “children”, “youth”, “adolescents”, “mental health”, “psychopathology”, “diagnosis”, “misdiagnosis”, “miscategorization”, “underdiagnosis”, and “overdiagnosis”. Seventy-two articles and book chapters met criteria and were included in this review. Overall, evidence was found that supports the possibility of misdiagnosis of ethnic minority youth’s emotional and behavioral problems. However, the evidence is limited such that it cannot be determined whether racial/ethnic differences are due to differences in psychopathology, mental health biases, and/or inaccurate diagnoses. Cultural and contextual factors that may influence misdiagnosis as well as recommendations for research and practice are discussed.     

Ease‐of‐retrieval effects on procedural justice judgements under conditions of informational and personal uncertainty

This study tests whether individuals' reliance on ease‐of‐retrieval processes when forming procedural justice judgements are moderated by informational and personal uncertainty. In Studies 1 and 2 we examined the predicted effects of informational uncertainty. Results indicated that participants in information‐uncertain conditions relied on ease‐of‐retrieval, whereas those in information‐certain conditions relied on content information to make procedural justice judgements. In Study 3 we examined the combined effects of informational uncertainty and personal uncertainty on reliance on ease‐of‐retrieval when forming procedural justice judgements. The findings of Study 3 indicated that personal uncertain participants who were in informational certain conditions based their procedural justice judgements on content information, whereas all other participants based their procedural justice judgements on ease‐of‐retrieval. This is the first paper to demonstrate that the joint effect of informational uncertainty and personal uncertainty on reliance on ease‐of‐retrieval is different from the two uncertainties acting alone.     

Some Ethical Concerns About Human Induced Pluripotent Stem Cells

Human induced pluripotent stem cells can be obtained from somatic cells, and their derivation does not require destruction of embryos, thus avoiding ethical problems arising from the destruction of human embryos. This type of stem cell may provide an important tool for stem cell therapy, but it also results in some ethical concerns. It is likely that abnormal reprogramming occurs in the induction of human induced pluripotent stem cells, and that the stem cells generate tumors in the process of stem cell therapy. Human induced pluripotent stem cells should not be used to clone human beings, to produce human germ cells, nor to make human embryos. Informed consent should be obtained from patients in stem cell therapy.     

我国内地教师主观幸福感的变迁(2002~2019)：横断历史研究的视角

教师主观幸福感作为衡量教师群体心理健康状况的一项关键指标, 对其现状的调查和分析至关重要, 同时, 对其随社会变迁的动态变化趋势、及其与社会变迁的关系的监测也不可忽视。本研究对2002至2019年间的51篇采用总体幸福感量表(GWB)测量教师主观幸福感的研究报告(共包括13600名教师)进行横断历史的元分析。研究发现：(1)教师主观幸福感均值与年代呈显著负相关, 这说明我国教师主观幸福感在逐年下降。(2)来自社会经济条件(居民消费水平、房价、老年抚养比和教育经费)、社会联结(家庭规模数、离婚率和城镇化水平)和社会威胁(犯罪率)三方面的8项宏观社会指标的变化能显著预测教师主观幸福感的下降。(3)中小学教师的主观幸福感随年代下降的趋势更明显, 其主观幸福感得分要显著低于高校教师。本研究不仅探究了我国教师主观幸福感近20年的变迁趋势, 而且结合社会宏观发展的指标, 提出了影响我国教师主观幸福感的三维理论框架, 对群体社会心理的研究思路进行了纵向(随时代变迁)及横向(宏观社会指标)的拉伸, 拓展理论基础的同时, 在实践上, 为干预调节我国教师群体主观幸福感提供决策依据。     

Subjective power and emotions in everyday interpersonal interactions: Counterparts' constrictive posture as moderator

Power is one of the vital components embedded within interpersonal interactions, but few studies have studied it in everyday life context. This experience sampling study examined the associations of subjective power with emotional well-being and investigated the moderating effects of counterpart' postures in the associations. Our results demonstrated that individuals reported higher positive emotions and lower negative emotions when they perceived higher subjective power. Their positive emotions were positively correlated with counterparts' expansive postures while negative emotions were positively correlated with counterparts' constrictive postures. The subjective power-negative emotion associations were stronger when counterparts displayed higher level of constrictive posture. Our findings provide an evidence base for a comprehensive understanding on the role of subjective power and perception of counterparts' power-related posture in dyadic communications in emotional well-being.     

Health Effects of Religion,Spirituality, and Supernatural Beliefs in Mainland China: A Systematic Review

Effects of religion, spirituality and supernatural beliefs (RSS) upon health in mainland China remain poorly understood, despite strong RSS beliefs influencing Chinese society. We conducted a Chinese–English bilingual systematic review to summarize the state of RSS-health research in mainland China. Study quality was assessed using the Critical Appraisal Skills Program tool. We screened 1858 studies, 162 of which were included in the review. From 2000–2004 to 2015–2019, the number of RSS-health studies in China increased from five to 73. However, only 7% of studies were rated as higher quality. Cross-sectional and case–control studies represented the vast majority of study designs (94%) and religious affiliation was the only RSS measure for 58% of studies. Higher, moderate, and lower quality studies indicated that RSS has both beneficial and adverse health implications. RSS-health research in China has accelerated rapidly in the last 20 years, but fundamental gaps in knowledge remain. Longitudinal study designs and nuanced RSS measures are needed to advance understanding of RSS health effects in China.

     

人工语法学习中习得知识的分离:基于信号检测论和结构知识的视角

习得知识的意识觉知问题一直以来是内隐学习领域的研究热点和难点。以加工分离程序来分解击中率和虚报率、以结构知识中意识和无意识测量为视角,采用2（测验方式：SDTT,SKT）×2（学习程度：30试次,60试次）混合设计,试图去分离人工语法学习中习得的意识知识和无意识知识。结果发现：（1）学习程度影响到习得的无意识知识,但还未影响到习得的意识知识;（2）在分离人工语法学习的习得知识上,SDTT的敏感性高于SKT;（3）SKT夸大了元认知中的意识成分。