精神分裂症对情绪的面部表情加工及其神经机制

综述了近年来关于精神分裂症对情绪面部表情加工损伤的研究,讨论了这种损伤的性质,以及对这种损伤性质的解释,比如它属于一般性还是特异性的损伤,与临床症状以及认知特征之间的关系等。比较分析表明,精神分裂症情绪面部表情知觉损伤,可能兼有面部信息加工障碍和情绪信息知觉困难的特性。另外,介绍了国外关于针对精神分裂症面部表情再认和识别的康复训练研究以及近年来利用事件相关电位（ERPs）和功能磁共振成像（fMRI）等认知神经科学技术进行的神经生理机制研究     

体型知觉的准确性及其认知机制

体型知觉的准确性既和一般人群的心理健康水平有关,又对进食障碍的理解、预防和治疗具有重要意义。首先,进食障碍患者可能高估自己的身体,其体型知觉准确度可能受其BMI和症状的影响,并与患者预后相关。其次,通过和对他人体型估计的结果进行对比发现,对自己的体型的高估可能受到对自己身体态度因素的影响。第三,一般人群对自己的体型估计的结果往往不一致,这可能是体型知觉的不同量化方式所致。最后,体型知觉准确性的相关认知机制主要有收缩偏差、视觉适应和序列依赖效应。     

Issues of Identity Development Among Asian-American Lesbians and Gay Men

This study examined the factors that affect an Asian-American individual's choice of identification with Asian-American and lesbian or gay identity. Nineteen Asian-American lesbians and 16 Asian-American gay men belonging to Asian-American lesbian or gay organizations answered survey questionnaires. Results indicated that most of the respondents identified more strongly with their lesbian or gay identities than with their Asian-American identities; however, most indicated that acknowledgment of both aspects of identity was preferred. Other situational factors, including disclosure of lesbian or gay identity to family and to the Asian-American community, as well as discrimination because of sexual orientation, race, and gender, were examined in regard to identity development.     

EXPLORING RELATIONS BETWEEN TYPICAL AND MAXIMUM PERFORMANCE RATINGS AND THE FIVE FACTOR MODEL OF PERSONALITY

The study tests the distinction between typical and maximum criteria with ratings of transformational leadership performance, and examines whether the criterion-related validities of the five factor model differ for the two types of criteria. Using an East Asian military sample ( n = 1,259) where multiple ratings of typical and maximum performance were obtained from different sources, we used structural equation modeling to test the typical/maximum performance distinction. Results found that typical and maximum performance are different latent constructs and that this distinction is present even after considering rating method factors (i.e., rater source, time). The importance of this distinction is shown by the fact that validities for the personality constructs were not equally predictive of both criteria: Openness was most predictive of maximum performance, Neuroticism was most predictive of typical performance, and Extroversion was predictive of both. By distinguishing typical from maximum performance constructs, relationships between personality and transformational leadership were found to be stronger than previous research suggested.     

Prestige and Social Standing of Growth Occupations, 1982–1995

This study helped to determine whether applicants for assistance from the state employment office view fast- and large-growth occupations with a hierarchy similar to that cited in the professional literature. Findings revealed that professions were in the top ranks, skilled and crafts occupations in the middle ranks, and service-oriented occupations in the low ranks. Growth occupation information did not seem to influence or affect job applicants' ratings.     

精神分裂症谱系中的快感缺乏

快感缺乏, 指体验愉快能力的降低, 它在精神分裂症病因学中发挥着很重要的作用, 其存在增加了罹患精神分裂症谱系疾病的风险。然而, 精神分裂症中做情绪体验的快感缺乏研究由于方法学的问题常不能得到一致的结果。从奖励系统入手, 最新的研究证据支持精神分裂症期待性愉快损伤, 而消费性愉快相对完好。在分裂型人格中似乎也存在类似的损伤模式。该文从精神分裂症谱系的角度, 探讨了从奖励系统考察快感缺乏的可能。     

自我缺损与精神分裂症

精神分裂症与自我改变的密切关系已经得到了广大研究者的认可。但是, 关于自我在精神分裂症患者中会发生何种变化并对疾病产生何种影响, 目前还没有全面、明确的理解。这篇文章综述了不同学科关于自我的研究, 提出可以从主导感、自我面孔识别、自我参照过程这三个部分来考察精神分裂症的自我缺损, 并回顾了自我这三个成分的相关研究, 分别考察了其对于精神分裂症研究的意义。本综述为全面评估自我缺损与精神分裂症的关系提供了思路。     

基于脑结构像的精神分裂症机器学习分类

将机器学习应用于精神疾患的临床和基础研究是近年来的趋势。研究者将机器学习应用于精神分裂症患者及高危人群的T1加权像和弥散张量成像的脑影像数据中, 为了解疾病的生理病理学机制提供帮助。回顾以往研究发现额叶及颞叶的脑结构特征具有较高的区分能力, 行为数据和脑影像数据结合的分类效果优于单模态数据。现阶段研究存在样本量不足和泛化能力欠缺的局限, 未来研究应注意扩大样本量、制定标准化的分类方法, 从而进一步探究机器学习在精神疾患中的作用。