进化心理学视角中的腐败行为及心理机制

腐败作为全世界普遍关注的焦点问题,不同领域学者针对腐败行为产生原因与对策进行探讨。普遍认为制度、权力、文化等因素是腐败行为产生的重要原因,个别研究涉及到腐败主体的内在心理。进化心理学从进化和适应的视角对人类行为发生及心理内在特征具有终极解释度。因此,本文在前人研究的基础上,基于进化心理学的独特视角,从个体生命史历程(如童年创伤、贫穷经历等)去揭示腐败行为产生的心理机制。     

Cumulative Adversity as a Correlate of Posttraumatic Growth: The Effects of Multiple Traumas,Discrimination, and Sexual Harassment

While trauma is, by definition, a necessary precursor of posttraumatic growth, other aspects of individuals’ life experiences affect their ability to cope with trauma, foster resilience, and grow following adversity. Most research on posttraumatic growth overlooks the accumulation of trauma and sub-trauma stressors as possible predictors of growth. In addition, most research on cumulative adversity omits all but the most extreme examples of discrimination and sexual harassment stressors. This exploratory study of 46 university students with trauma histories used measures of posttraumatic growth, trauma, major (sub-trauma) life events, chronic stressors, sexual harassment, and discrimination to examine the relationship between cumulative adversity and the development of posttraumatic growth. We found that cumulative adversity is positively correlated with posttraumatic growth, and that there are important relationships between gender, race, and cumulative adversity. A hypothesized curvilinear relationship between cumulative adversity and posttraumatic growth was not supported. These findings suggest that successfully coping with some amount of sub-trauma adversity may facilitate the development of posttraumatic growth. Additionally, sexual harassment and discrimination were closely linked to the number of chronic stressors; thus, they need to be included in measures of cumulative adversity to more fully represent the experiences of marginalized groups.     

小学低年级儿童的计算流畅性与数学焦虑:基于变量为中心与个体为中心的分析

为考察计算流畅性对小学低年级儿童数学焦虑的影响及作用机制,对592名小学二年级儿童的计算流畅性、数学学习兴趣、教师支持和数学焦虑进行测查。结果发现:(1)计算流畅性不仅通过数学学习兴趣间接影响数学焦虑,也可通过数学学习兴趣进而通过教师支持间接影响数学焦虑;(2)对计算流畅性和数学学习兴趣得分进行潜剖面分析,可将儿童区分为三种类型:低能力-低兴趣型、高能力-高兴趣型和低能力-高兴趣型;(3)低能力-低兴趣型儿童的数学焦虑得分显著高于其他两类,而低能力-高兴趣型和高能力-高兴趣型儿童的数学焦虑得分则无显著差异。上述结果表明计算流畅性、数学学习兴趣和教师支持在预防和干预小学低年级儿童的数学焦虑中具有重要作用。     

童年及当前环境压力对跨期选择的影响:时间感知的中介作用

本文分别以90名和70名大学生为被试,通过问卷调查和实验任务的方式,探究童年环境、当前环境压力、时间感知和跨期选择四者之间的关系。结果表明:(1)童年环境影响时间感知,相比童年社会经济地位高的个体,童年社会经济地位低的个体更倾向于高估时距。(2)在正常环境下,个体时间感知完全中介作用于童年环境和跨期选择之间的关系,童年环境通过影响个体时间感知进而影响个体的跨期选择。(3)在当前环境压力下,时间感知并未起到中介作用。研究表明,时间感知在童年压力与在当前环境压力条件下,对跨期选择的影响作用不同。     

童年期不良经历对中学生良心的影响：特质自我控制和自我损耗的链式中介作用

为探讨童年期不良经历对中学生良心的影响及作用机制,基于生物生态学理论和自我控制资源模型,采用整群取样法抽取湖南省7所城市7所中学初一到高三学生共3648名,使用童年期不良经历问卷、青少年良心问卷、特质自我控制量表和自我调节疲劳量表进行问卷调查。结果发现:(1)童年期不良经历负向预测中学生良心;(2)特质自我控制和自我损耗在童年期不良经历和中学生良心间起部分中介作用;(3)特质自我控制和自我损耗在童年期不良经历和中学生良心间起链式中介作用。研究结果表明,童年期不良经历不仅是影响中学生良心的重要外部因素,而且还会通过影响特质自我控制和经由自我损耗对中学生良心产生间接作用;减少和避免童年期不良经历对中学生心理的冲击,提升其特质自我控制水平,降低其自我损耗,是预防中学生良心失守和提升良心水平的重要途径。     

儿童期创伤与有留守经历大学生负性情绪：心理韧性的调节作用

本研究旨在考察有留守经历的大学生儿童期创伤与负性情绪关系,以及心理韧性在其间的调节作用。对391名有留守经历的大学生进行间隔3个月的两次问卷调查。结果:(1)相较于没有儿童期创伤的个体,有儿童期创伤的个体心理韧性更低,抑郁、焦虑、压力水平更高;(2)在控制性别、城乡来源、是否独生、年龄与T1时间点负性情绪的作用后,T1时间点的儿童期创伤、心理韧性均能显著预测T2时间点的负性情绪;(3)低心理韧性水平下,儿童期创伤显著预测留守经历大学生的负性情绪;高心理韧性水平下,预测作用不再显著。表明儿童期创伤是有留守经历的大学生负性情绪的风险因素,心理韧性可以调节儿童期创伤对有留守经历大学生的负性情绪的预测。     

Primary school teacher outcomes from online professional development for physical literacy: A randomised controlled trial

IntroductionPrimary (or elementary) school teachers are often relied upon to provide children with opportunities for physical literacy development; however, many of these teachers feel they lack the skills to effectively promote or ‘teach’ physical literacy. We examined the effects of an online physical literacy professional development program—relative to receiving widely-available online resources or continuing with ‘normal’ practice—on primary school teachers’ physical literacy knowledge and application.MethodsA parallel three-arm randomised controlled trial in which 92 primary school teachers were assigned to (a) an online professional development program designed to support teachers’ physical literacy instructional skills (‘intervention’), (b) receive widely-available online physical literacy resources (‘comparison’), or (c) a typical practice ‘control’ condition. Data were collected at baseline and following the four-week intervention period. The primary outcome was teachers’ physical literacy knowledge and application; secondary outcomes included teachers’ self-reported perceptions of confidence, values, and barriers. Between-group differences were assessed using the intention-to-treat principle with analysis of covariance accounting for demographic factors and baseline differences in the focal outcome.ResultsTeachers in the intervention arm scored significantly higher on post-intervention physical literacy knowledge and application than their counterparts in both the control (d = .47, p = .044) and comparison (d = 0.87, p = .007) arms. This pattern of differences was also observed for teachers’ value of physical literacy, autonomy support, and perceived personal barriers.ConclusionTo the best of our knowledge, this is the first adequately powered randomised controlled trial to demonstrate improvements in physical literacy instructional outcomes as a result of primary school teacher participation in targeted online professional development.     

A longitudinal analysis of reciprocal relationships between actual and perceived motor competencies and physical self-concept in primary-school age children

Physical self-concept (PSC) and motor competencies are important factors in view of the development of a physically active lifestyle. There are research gaps regarding longitudinal studies of these relationships. This article presents findings of a longitudinal study (n = 200; 58% girls, M = 8.84 ± 0.63 years) at three primary schools. The aim of this study was to analyze the relationship between actual motor competencies (AMC) and perceived motor competencies (PMC) and PSC. Therefore, manifest path models in cross-lagged design were performed. Results show that correlations between PMC and AMC increased over time and were stronger in object control than in locomotor. Effects of AMC on PSC were more strongly mediated by PMC in object control than in locomotor. To promote physical activity, developing strategies should be aimed at the acquisition of AMC, particularly in object control, and PMC, especially in locomotor, during childhood.     

CHRM2基因rs1824024多态性与青少年早期抑郁的关系

运用问卷法与DNA分型技术,以127名高和低抑郁组初中生为被试,考察CHRM2基因rs1824024多态性与青少年早期抑郁的关系,重点探讨负性生活事件、青少年性别与年级的调节作用。结果发现,CHRM2基因rs1824024多态性与女青少年的抑郁边缘显著关联,T等位基因携带者患高抑郁的风险较低,但该位点与男青少年的抑郁无关;在那些经历低水平负性生活事件的青少年中,T等位基因携带者患高抑郁的可能性边缘显著低于GG型基因携带者;rs1824024多态性与年级对青少年早期抑郁无显著交互作用。     

早期胃癌直径、淋巴结微转移与组织E1AF、MMP-7mRNA表达临床研究

早期胃癌内镜下切除的安全性取决于严格的术前分期、肿瘤直径及有无淋巴结转移。研究证实早期胃癌组织分型、肿瘤直径、淋巴结微转移与E1AF、MMP-7mRNA表达具有相关性,并使其具有侵袭转移的生物行为。根据临床病理特征及相关组织内E1AFmRNA、MMP-7mRNA表达选择治疗方式,以获取更好疗效。