记忆的顿悟优势效应

记忆的顿悟优势效应指, 与加工非顿悟问题相比, 加工顿悟问题能够产生更优的记忆保持量。该效应在顿悟的两种操作性定义以及不同实验材料中稳定出现。基于顿悟阶段观, 研究者提出两种理论解释记忆的顿悟优势效应的认知机制：认知的生成效应和表征转化理论认为, 顿悟加工过程中的认知努力、适当迁移加工以及顿悟的表征转换加工促进记忆的保持效果; 情绪的“啊哈”体验理论认为, 加工顿悟问题后的情绪对后续的信息提取具有促进作用。未来的研究可从优化顿悟的指标、巩固记忆的顿悟优势效应、评估其持续性以及更加系统探讨记忆的顿悟优势效应的认知机制等四个方面展开。     

Gender differences in psychological morbidity,burnout, job stress and job satisfaction among Chinese neurologists: a national cross-sectional study

Women are an important part of the medical workforce, yet little is known about gender differences in psychological morbidity, burnout, job stress and job satisfaction among neurologists. This study assessed gender differences in a large national sample of Chinese neurologists. Multivariate analyses were performed to examine associations. A total of 5558 neurologists were included in the analysis. Compared with their male counterparts, female neurologists were generally younger; were less likely to be married or to have children; had higher levels of education; were in practice for a shorter period of time; were less likely to hold senior roles; and had lower incomes. Male and female neurologists worked similar hours and spent a similar number of nights on call. No gender differences were found in psychological morbidity, burnout, and high levels of job stress for female and male, respectively. Women had higher emotional exhaustion scores, while men were more likely to have low levels of job satisfaction. The multivariate analysis showed that factors independently associated with psychological morbidity, burnout, high levels of job stress and low levels of job satisfaction were generally similar for women and men. These findings increase our understanding of gender differences in psychological morbidity, burnout, job stress, and job satisfaction among neurologists. As more women join the medical profession, these differences may be useful in designing medical training and practice.     

职场排斥的作用机制与本土化发展

职场排斥是组织情境中的负面行为,会对员工的心理状态、工作态度和工作行为,以及组织绩效造成严重的影响,近年来得到了学者和管理者的关注。研究主要从职场排斥的概念、测量工具、与其它概念的比较及实证研究四个方面,对国内外相关研究进行了梳理,并探讨中国文化的权变作用。未来研究应从中国的组织情境特点出发,继续完善职场排斥的概念和维度,扩展研究层次,深入分析影响机制,结合中国文化对职场排斥展开本土化研究,丰富研究视角。     

中国情境下团队伦理决策的过程机制及影响因素

尽管绝大多数商业伦理决策都是由团队而非个人所做出的,但目前对团队伦理决策的研究还很少,尤其缺乏基于理论的深入研究。在前人研究的基础上,借鉴个体伦理决策和团队决策方面的研究成果,结合中国文化强调反省、中庸、威权领导等特点,我们对团队伦理决策的过程机制及影响因素的作用模式展开理论驱动的深入研究。具体来讲,将综合利用多种方法来进行两个方面的4项子研究。在团队伦理决策的过程机制方面,拟开展团队伦理决策的过程机制模型构建研究,然后聚焦于团队伦理决策和个体伦理决策的核心区别,展开基于社会决策图式理论的团队伦理决策观点整合机制研究;在团队伦理决策的影响因素作用模式方面,拟从成员和领导两个方面来进行:基于信息加工和团队冲突的成员多样性对团队伦理决策的影响机制研究,基于信息取样模型的领导特征对团队伦理决策的影响机制研究。     

物质主义都是有害的吗?——来自实证和概念的挑战

物质主义指的是一种强调拥有物质财富对于个人生活重要性的价值观念。过往研究多强调其消极效应,但此观点日益面临挑战。实证研究表明物质主义在某些条件下能提升幸福感,也可以作为不安全感的补偿策略。在概念层面,有研究者基于动机的视角指出工具性物质主义是无害的,并且物质主义作为一种身份目标追求,能够建构和维持自我身份。未来研究需进一步为动机取向的物质主义概念提供实证研究的支持、评估物质主义补偿不安全感和提升幸福感的效果、基于认知和动机的整合视角考察物质主义对幸福感的积极影响。     

奖赏对海洛因成瘾者执行功能的影响机制

一些研究发现海洛因成瘾者奖赏失调表现为:对海洛因相关线索的注意偏向、渴求感增加,对金钱奖赏表现出"即时收益优先"的高风险决策模式和对长时收益的敏感性降低。另一些研究发现海洛因成瘾者的执行功能存在障碍。奖赏失调和执行功能障碍在成瘾物质使用的维持和复吸中起着重要作用。双重竞争模型认为奖赏和执行功能的交互作用决定着行为的结果,但是奖赏对海洛因成瘾者执行功能的影响机制还不清楚。因此,拟使用事件相关电位技术来考察海洛因相关线索和金钱奖赏对不同戒断期成瘾者执行功能的影响机制,短期(1~3个月)、长期(18个月以上)海洛因戒断者和健康对照组被比较。这不仅有助于构建完善的成瘾理论体系,还有助于确定临床戒断后复吸的风险因素和不同戒断期的治疗目标。     

面孔部件在群体注意方向判断中的作用

探讨面孔部件(眼睛和鼻子)在个体和群体注意方向判断中的作用。实验1使用不同数量面孔的图片,要求报告群体或个体的注意方向。结果发现,多面孔条件下对群体注意方向估计的准确性高于单面孔条件。实验2采用眼动技术,探讨眼睛和鼻子在判断其注意方向时注视的空间与时间分布特征。结果发现,基于单张面孔判断时,对鼻子的总注视时间长于眼睛;基于多张面孔判断时,对眼睛和鼻子的总注视时间没有差异。整个研究表明,知觉个体注意主要依赖鼻子,知觉群体注意依赖眼睛和鼻子。     

When kinesthetic information is neglected in learning a Novel bimanual rhythmic coordination

Many studies have shown that rhythmic interlimb coordination involves perception of the coupled limb movements, and different sensory modalities can be used. Using visual displays to inform the coupled bimanual movement, novel bimanual coordination patterns can be learned with practice. A recent study showed that similar learning occurred without vision when a coach provided manual guidance during practice. The information provided via the two different modalities may be same (amodal) or different (modality specific). If it is different, then learning with both is a dual task, and one source of information might be used in preference to the other in performing the task when both are available. In the current study, participants learned a novel 90° bimanual coordination pattern without or with visual information in addition to kinesthesis. In posttest, all participants were tested without and with visual information in addition to kinesthesis. When tested with visual information, all participants exhibited performance that was significantly improved by practice. When tested without visual information, participants who practiced using only kinesthetic information showed improvement, but those who practiced with visual information in addition showed remarkably less improvement. The results indicate that (1) the information is not amodal, (2) use of a single type of information was preferred, and (3) the preferred information was visual. We also hypothesized that older participants might be more likely to acquire dual task performance given their greater experience of the two sensory modes in combination, but results were replicated with both 20- and 50-year-olds.     

Predictors of Stress Generation in Adolescents in Mainland China

The current longitudinal study examined whether the personality vulnerabilities of self-criticism and dependency prospectively predicted stress generation in Chinese adolescents. Participants included 1,116 adolescents (588 girls and 528 boys), aged 15 to 18 years from rural, urban and ultra-urban mainland China. Participants completed self-report measures of personality, depressive and anxious symptoms and participated in a clinical interview assessing lifetime history of depression. The occurrence of negative life events was measured using a contextual-threat interview every 6-months for a total period of 18-months. Logistic regression analyses showed that after controlling for past depressive episodes and current depressive and anxious symptoms, self-criticism was prospectively associated with the occurrence of interpersonal stress generation, but not noninterpersonal stress generation. Dependency also predicted interpersonal stress generation, although only in girls and not boys. In line with previous Western findings, girls reported more interpersonal stress generation. Analyses across 3 levels of urbanization revealed several significant differences including higher reported interpersonal stress generation in urban girls than urban boys and overall higher levels of negative life events in ultra-urban youth. In sum, findings from the current study suggest that the stress generation process may be generalizable to Chinese youth.     

权力感对个体的影响:调节定向的视角

采用4个研究探究了权力感对调节定向的影响。研究1通过测量被试的特质性权力感和特质性调节定向初步探索权力感水平与调节定向的关系。研究2和研究3分别通过外显角色扮演和故事回忆法来探究状态性权力感对调节定向目标表征和策略选择的影响。研究4采用身体姿势法启动权力感,进一步探究在内隐层面权力感对调节定向的影响。结果发现,高权力感个体更倾向于促进定向;而低权力感个体更倾向于预防定向,并且排除了其中可能的无关变量(情绪)的影响。本研究有助于更好地理解和整合现有的权力感研究结果,并能预测更多未知的权力感效应。