网络游戏过度使用者的注意偏向及其ERP特征

网络成瘾与吸烟、饮酒等物质成瘾具有许多相似性,因此也可能存在类似的认知偏向和神经机制。本研究采用事件相关电位技术,通过点探测范式研究网络游戏过度使用者的注意偏向问题。结果显示：（1）与一般使用者相比,网络游戏过度使用者存在明显的注意偏向;（2）游戏图片对网络游戏过度使用者诱发的P2的振幅小于一般使用者;（3）网络游戏过度使用者对游戏图片位置上出现的探测点的加工（P1）较早。结果提示,网络游戏过度使用者的注意偏向存在特定的脑电模式。     

Errors are aversive: defensive motivation and the error-related negativity

The error-related negativity (ERN) is a negative deflection in the event-related potential that is maximal approximately 50 ms after the commission of an error. The ERN is generated in the anterior cingulate cortex, a region of the medial prefrontal cortex implicated in both cognitive and emotional processing. Affective and motivational variables influence the magnitude of the ERN, which suggests that the ERN may relate to emotional or motivational aspects of error detection. In the present study, we evaluated the possibility that errors prime defensive motivational responses, and that the ERN may predict the magnitude of defensive reactivity after errors. We found that (a) the defensive startle response was larger following errors than following correct responses, and (b) the magnitude of the ERN predicted the degree of startle potentiation following errors. Thus, response errors prime defensive motivation-and the ERN predicts individual differences in the aversive response to errors.     

Psychology and Experimental Economics: A Gap in Abstraction

ABSTRACT— Experimental economics and social psychology share an interest in a widening subset of topics, relying on similar lab-based methods to address similar questions about human behavior, yet dialogue between the two fields remains in its infancy. We propose a framework for understanding this disconnect: The different approaches the disciplines take to translating real-world behavior into the laboratory create a "gap in abstraction," which contributes to crucial differences in philosophy about the roles of deception and incentives in experiments and limits cross-pollination. We review two areas of common interest—altruism and group-based discrimination—which demonstrate this gap yet also reveal ways in which the two approaches might be seen as complementary rather than contradictory.     

Psychometric properties of the Obsessive Compulsive Inventory-Revised among Icelandic college students

In the present study, the psychometric properties of the Obsessive Compulsive Inventory-Revised (OCI-R) (Foa, et al., 2002) were investigated. The OCI-R was administered to a total of 816 Icelandic college students. The Maudsley Obsessive Compulsive Inventory (MOCI) and the Penn State Worry Questionnaire (PSWQ) were administered to a subsample of 304 students, and the PI-WSUR (Padua Inventory Washington State University Revision), the PSWQ and the Multidimensional Perfectionism Scale (MPS) to another subsample of 212 students. Also, 89 students filled in the OCI-R twice with two weeks in between. The factor structure of the instrument was replicated in a confirmatory factor analysis. Cronbach's alpha and test-retest reliabilities of the OCI-R total scale and all subscales were satisfactory. Further, the OCI-R total score showed a significantly higher correlation with the PI-WSUR and the MOCI than with the PSWQ or the MPS. Finally, conceptually similar scales of the OCI-R and the MOCI as well as the PI-WSUR showed higher inter-correlations than the correlations that were observed between conceptually more distinct scales. It is concluded that the Icelandic version of the OCI-R has strong psychometric properties in a student population.     

巴西医疗保障体系

从巴西医疗保障体系的建立、资金筹集和使用等方面介绍巴西医疗保障体系,重点关注巴西全民统一医疗制度.鉴于巴西与我国在卫生系统绩效和医疗保障制度改革中所面临的相似挑战,试图通过对巴西医疗保障体系比较详细地介绍及与我国进行简单的对比,总结成功经验、吸取教训为我国建立全民覆盖的医疗保障体系提供借鉴和参考.     

Social anxiety disorder: psychobiological and evolutionary underpinnings

Social anxiety disorder (SAD) also know as social phobia is increasingly recognized as a highly prevalent and disabling psychiatric disorder. SAD patients demonstrate cognitive-affective distortions in relation to social situations and abnormal activation patterns in limbic structures during functional imaging. Behavioral inhibition is an endophenotype that may be useful in understanding vulnerability to SAD, and that has specific imaging and genetic correlates. From an evolutionary perspective, it has been speculated that SAD represents a false appeasement alarm. It is notable that SAD responds to selective serotonin reuptake inhibitors and monoamine oxidase inhibitors, but not to most tricyclic antidepressants; this finding is consistent with the importance of serotonin and dopamine in mediating this disorder.     

The Philanthropy of the Orthodox Church: A Rumanian Case Study

On the basis of a definition of God as "love", human philanthropyis derived from Divine philanthropy, and therefore extends toall human beings. Because Divine philanthropy is most centrallyexpressed in Christ's incarnation and resurrection, Christ'sidentification with all who suffer presents the strongest motivationfor human philanthropy. After a short review of the RomanianOrthodox Church's development after 1989, the author turns tohis special case study, the Social-Medical Day-Care ChristianCentre for older citizens. He describes the wan in which Church-basedphilanthropy can integrate socialmedical with Christian pastoralcare, and how this work draws the local communities into assuminga shared responsibility.     

Overestimation of the projected size of objects on the surface of mirrors and windows

Four experiments investigated judgments of the size of projections of objects on the glass surface of mirrors and windows. The authors tested different ways of explaining the task to overcome the difficulty that people had in understanding what the projection was, and they varied the distance of the observer and the object to the mirror or window and varied the size of the mirror. The authors compared estimations of projected size with estimations of the physical size of the object that produced the projection. For both mirrors and windows, observers accurately judged the physical size of objects but greatly overestimated the projected size of the same objects. Indeed, judgments of projected size were more similar to physical than to projected size. People were also questioned verbally about their knowledge of projected size relative to physical size. The errors produced for these conceptual questions were similar to those found in the perceptual estimation tasks. Together, these results suggest that projections of objects on mirrors and windows are treated in the same way and that observers cannot perceive such projections as distal objects.     

Helping and proactive extra-role behaviors: The influence of motives, goal orientation, and social context

We explore how two motivational orientations (communion and status striving) influence three extra-role organizational behaviors: proactive engagement, providing help, and seeking help. We propose and confirm intervening mechanisms, in the form of (a) goal orientations and (b) attitudes toward coworkers. Proactive behaviors are predicted by status striving, through the intervening mechanisms of both learning and performance proving goal orientations. Providing help is, in turn, motivated by communion striving, and the relationship is mediated by goal orientations (learning and performance avoiding) and by satisfaction with and commitment to coworkers. Finally, seeking help is a function of communion striving, which influences the outcome through learning goal orientation and satisfaction with and confidence in coworkers.     

COMT val158Met and executive control: a test of the benefit of specific deficits to translational research

The role of catechol-O-methyltransferase (COMT) val158met in prefrontal cortical deficits associated with the liability to schizophrenia remains controversial. This study evaluated 464 healthy adult participants using three measures of executive functions in working memory: a 3-back version of the N-back continuous performance task (CPT) and two variants of the AX-CPT. The interpretability of N-back performance was confounded by possible generalized deficits, whereas the AX variants included internal controls for uncovering specific deficits. There was no relationship between the COMT genotype and N-back performance, whereas val/val individuals had a specific deficit on a dot-pattern version of the AX-CPT. In this case, a specific executive function known as context processing appeared to be compromised. These data suggest that the interpretability gained by including task manipulations to uncover specific deficits can enhance associations between cognitive and genetic levels of analysis.