Error detection and posterror behavior in depressed undergraduates

This study examined the influence of depression on error-monitoring and behavioral compensation after errors, two important aspects of cognitive control. Undergraduates differing in self-reported depression levels completed a modified Stroop task while error-related scalp potentials were recorded. Behaviorally, participants with higher depression scores were disproportionately slower and less accurate after errors in a task condition that included negative emotional words. Physiological results indicated that the amplitudes of the error-related negativity (ERN) and error positivity (Pe), two indices of error detection, were not correlated with depression score. ERN amplitudes predicted behavioral slowdown after errors, but only among more depressed participants in the negative-word condition. Together, the results imply that depression is associated not with an error detection deficit, but rather with alterations in subsequent performance changes, once errors have been identified.     

Rethinking free, libre and open source software

This special issue includes seven articles that make significant contribution to the literature pertaining to knowledge and public policy around Free, Libre and Open Source Software (FLOSS). Focusing on questions in two themes (i) motivation and organization and (ii) public policy, the articles in this volume develop new analytic models and report on new empirical findings, as an important step in bridging the wide gap that exists in public policy literature around FLOSS. Warning against rhetorical pitfalls that have been prevalent in FLOSS research, this introduction starts with a short history of FLOSS development, continues with a brief thematic literature review and review of the misconceptions surrounding FLOSS, and concludes with a first introduction of the articles that follow. He is part of the Dutch Institute of Government (NIG), the research school for public administration and political science. His research focuses on the organization of open source communities. He received two grants from the Netherlands Organization for Scientific Research (NWO) for research related to open source communities. The first grant was to study the interplay between intellectual property rights and open source communities. The results are published in Governing the Virtual Commons (Cambridge University Press, 2003). He has written numerous articles on open source, which have appeared in journals like Electronic Markets; Knowledge, Technology and Policy; and the International Journal of IT Standards & Standardisation Research. She received her Ph.D. in sociology from the University of York (UK) in 2004. Her Ph.D. research investigated the heterogeneity and contingency in the Free, Libre Open Source Software (FLOSS) social worlds, which is based on a constellation of hacking practices, from the sociological perspective. Her principal research interests center on FLOSS studies, Science and Technology Studies (STS), virtual communities and knowledge-sharing. Shay is also a fellow at The Information Society Project at the Yale Law School. Shay holds a B.Sc. in computer science and a B.A. in philosophy, magna cum laude, from Tel-Aviv University, and an M.A. from New York University where his interdisciplinary research thesis focused on the political economy of free and open source software and file sharing networks. Shay is an entrepreneur that co-founded two software start-up companies, and was involved for several years in cutting edge software research, combining open source and proprietary software.     

树立正确的荣辱观加强福建省道教界的自身建设

荣辱观是人们对荣辱的基本看法,是善恶、是非、美丑等价值观念在一个时代的具体体现,也是人们行为和自律的标尺。古人云:不知荣辱,乃不能成人。一个人只有知荣而为之,知辱而不为,才能自觉地约束自己的言行。因此,树立正确的荣辱观,是人的立身之本。当前,随着改革开放和社会主义     

进化认知心理学的模块说

该文介绍了进化认知心理学中的一个主流观点———模块说。模块说认为心理由各相互独立的、解决特定任务的模块组成。进化认知心理学的研究历史悠久,很多著名研究者都对此做出了巨大的贡献。该文结合各种例子,阐述了进化心理学的模块说以及其迅速、高效但并非精确无误等特点,同时也结合例子阐明了社会认知领域的心理模块。     

Shared and distinct factors driving attention and temporal processing across modalities

In addition to the classic finding that “sounds are judged longer than lights,” the timing of auditory stimuli is often more precise and accurate than is the timing of visual stimuli. In cognitive models of temporal processing, these modality differences are explained by positing that auditory stimuli more automatically capture and hold attention, more efficiently closing an attentional switch that allows the accumulation of pulses marking the passage of time (Penney, Gibbon, & Meck, 2000). However, attention is a multifaceted construct, and there has been little attempt to determine which aspects of attention may be related to modality effects. We used visual and auditory versions of the Continuous Temporal Expectancy Task (CTET; O'Connell et al., 2009) a timing task previously linked to behavioral and electrophysiological measures of mind-wandering and attention lapses, and tested participants with or without the presence of a video distractor. Performance in the auditory condition was generally superior to that in the visual condition, replicating standard results in the timing literature. The auditory modality was also less affected by declines in sustained attention indexed by declines in performance over time. In contrast, distraction had an equivalent impact on performance in the two modalities. Analysis of individual differences in performance revealed further differences between the two modalities: Poor performance in the auditory condition was primarily related to boredom whereas poor performance in the visual condition was primarily related to distractibility. These results suggest that: 1) challenges to different aspects of attention reveal both modality-specific and nonspecific effects on temporal processing, and 2) different factors drive individual differences when testing across modalities.     

The Career Adapt-Abilities Scale in Macau: Psychometric characteristics and construct validity

The purpose of the study was to determine if the CAAS could be used with middle school students. Currently no study has been done for the application of CAAS on middle school students. We examined the reliability and validity of the Career Adapt-Ability Scale (CAAS) in Macau for middle school and high school students. The CAAS consists of four scales, each with six items, which measure concern, control, curiosity, and confidence. We tested the internal consistency and factor structure with 270 middle school students and 188 high school students. We also compared students' performance on CAAS in terms of gender and age. The results indicated that internal consistency estimates for the subscale and total scores were good for both high school and middle school students. The factor structure was quite similar to the one computed for combined data from 13 countries (Savickas & Porfeli, 2012). In addition, we found that high school students scored significantly higher than middle school students on the CAAS scales. Based on the results, the CAAS-Macau Form appears ready for use by researchers and practitioners who wish to measure adaptability resources among middle school and high school students in Macau.     

不同时程应激对大鼠行为、免疫和交感神经系统反应的影响

研究旨在研究不同时程情绪应激诱导的大鼠行为、免疫和神经内分泌反应的动态变化及其相互关系。实验采用一种在程序性饮水的固定时间点不确定性给予大鼠空瓶刺激诱发其情绪反应的应激模式,测定不同时程（14,21和28天）应激对大鼠行为、交感神经系统反应、体液免疫功能及体重增长的影响。结果表明,情绪应激导致大鼠攻击行为显著增加,且在整个应激过程中情绪应激组大鼠的攻击行为都被稳定地诱导;不同时程的情绪应激均导致大鼠特异性抗OVA抗体水平明显降低,且降低的程度类似;在情绪应激的第14天和28天应激组大鼠血中去甲肾上腺素水平明显高于对照组,但后者升高的水平明显低于前者。此外,14天应激明显抑制大鼠的体重增长,但随着应激时程的延长,体重增长逐渐恢复。这些结果表明,随着应激时程的延长,大鼠行为、免疫和神经内分泌反应的适应性改变存在时程差异,有助于进一步了解应激诱发的各种反应间的复杂关系     

CSR"品牌":以企业社会责任提升国家形象

消费者对别国的国家形象是通过食品、艺术、旅游等多种接触渠道形成的,其中一种体验会引发并上升为整个国家形象,即“光环效应”。申言之,消费者对其他国家的形象是通过消费者对该国产品的体验间接培育的,而消费者对其他国家某种产品的正、负面体验,将直接影响对该国其它产品的相应看法,即“连带效应”。据此,本文推论,民众可以通过企业社会责任的“光环效应”认知一个国家,进而依据“连带效应”形成对一国企业产品社会责任的总体印象。韩国在华中小型企业社会责任的不良纪录,很可能导致对韩国国家形象的负面看法。特有的集体行动逻辑阻碍了韩国在华中小型企业及时采取反应,其结果又反过来伤害其自身。     

Ⅰ期颈椎前后路手术治疗后纵韧带骨化症

为了探讨颈椎前后路手术治疗后纵韧带骨化症的疗效,对65例后纵韧带骨化症患者,Ⅰ期行颈椎前后路手术,采用JOA评分和X线,CT对手术效果进行评价。结果显示,按JOA标准评定,优良率为94％。术后X线及CT均示椎管有效矢状径增加,硬膜囊压迫解除。因此,颈椎前后路手术可以达到减压、稳定的目的,手术效果良好。     

Adolescents on the net: Internet use and well-being

With the growing popularity of Internet communication applications among adolescents, the Internet has become an important social context for their development. This paper examined the relationship between adolescent online activity and well-being. Participants included 156 adolescents between 15 to 18.4 years of age who were surveyed about their access to and use of the Internet. Participants also completed measures of loneliness and perceived social support. An ANOVA suggested that loneliness was not related to the total time spent online, nor to the time spent on e-mail, but was related to participants' gender. Regression analyses suggested that gender and participants' perceptions regarding their online relationships were the only variables that predicted loneliness. Adolescents who felt that their relationship with online partners was one that they could turn to in times of need were more lonely. However, perceived support from significant others was not related to time spent online, time on e-mail, participants' relationships with online partners, and to their perceptions about these relationships. The implications of our results for researchers, parents, and other lay persons are discussed.