从儿童赌博任务看热执行功能的发展

为考察热执行功能的发展,本研究通过儿童赌博任务检测了60名3～4岁儿童(男女各半)的情感决策。实验结果表明,3岁和4岁儿童在此任务上存在显著的年龄差异,4岁组在各试验组的分数呈上升趋势,他们在试验组2、尤其在试验组4和5中选择有利纸牌的次数显著多于3岁儿童,这反映出情感决策在3～4岁期间发展迅速。此外,儿童在此任务上的成绩存在很多可变性,可能掩盖了性别差异,因而,尽管男孩在最后两个试验组的成绩优于女孩,但性别差异在统计上并不显著。     

VRVision: A new tool for the display of 3-D images in behavioral research

Researchers using three-dimensional (3-D) scenes in their studies often spend a lot of time prerendering the scenes into a set of images for later presentations. To improve efficiency, we have developed a new plugin program for MATLAB that eliminates this step. The program is able to manipulate and present 3-D scenes in real time. It allows fine control over numerous parameters, including the mode of projection, angular rotation, lighting, surface photo textures, and animation. Images can be presented with monoscopic or stereoscopic display. It can also dynamically track viewer position and update and display an appropriate 3-D projection. The program is fully compatible with existing MATLAB utilities such as the Psychophysics Toolbox (psychtoolbox.org). It is made freely available to the research community (www.hive.hull .ac.uk/software/vrvision).     

Multiple memory systems: the power of interactions

Two relatively simple theories of brain function will be used to demonstrate the explanatory power of multiple memory systems in your brain interacting cooperatively or competitively to directly or indirectly influence cognition and behaviour. The view put forth in this mini-review is that interactions between memory systems produce normal and abnormal manifestations of behaviour, and by logical extension, an understanding of these complex interactions holds the key to understanding debilitating brain and psychiatric disorders.     

Medication barriers and anti-hypertensive medication adherence: the moderating role of locus of control

Locus of control as a moderator of the relationship between medication barriers (e.g., side-effects, forgetting to take medication, and keeping track of pills) and anti-hypertensive medication adherence was examined. Baseline data were obtained from 588 hypertensive veterans. In general, fewer medication barriers, higher internal locus of control and lower external locus of control was associated with better hypertensive medication adherence. Furthermore, internal locus of control served as a moderator (beta = -.74, p < .01) for the relationship between medication barriers and medication adherence; effect size was large. Decomposition of the interaction revealed that the relationship between medication barriers and medication adherence was strongest when internal control was high (b = -.24, p < .01). Higher internal locus of control was beneficial when barriers to medication adherence are low, but at high perceived barriers, locus of control plays less of a role in medication adherence. Future efforts to improve medication adherence should consider the patient's perceived level of medication barriers in conjunction with their locus of control.     

Face recognition is robust with incongruent image resolution: relationship to security video images

Identifying a criminal captured on conventional security video typically requires matching poor-quality video footage against a high-quality photograph. The authors examined the consequence of such a large discrepancy in image quality. Recognition and matching performance of this incongruent-quality condition was compared with that of a congruent one, in which a high-quality photograph was reduced to a low-quality video. Recognition memory was little affected by this manipulation, whereas matching performance of the incongruent condition enjoyed occasional advantage. The results show that person identification can tolerate a large discrepancy between image qualities of matching stimuli when one of the images is of poor quality.     

Trust me if you can: The effect of driver username on passengers' intention to use ride-sharing service

Building trust and enhancing consumers' participation are critical for the growth of peer-to-peer sharing economy. This research explores the effect of driver username on passengers' intention to use ride-sharing service and its underlying psychological mechanisms. The results indicate that driver username has a significant impact on passengers' intention to use ride-sharing service, as a driver with a real name elicits greater intention to use ride-sharing service than a driver with a screen name (studies 1, 2, 3a, 3b, and 3c). In addition, the effect of driver username on passengers' intention to use ride-sharing service is serially mediated by social presence and trust (study 2). Importantly, the effect of driver username on passengers' intention to use ride-sharing service is moderated by driver reputation (studies 3a, 3b, and 3c). A high (vs. low) reputation facilitates the impact of driver username on passengers' usage intention. Based upon these findings, theoretical and practical implications are discussed.     

Testing the bidirectional relationship between belief in COVID-19 conspiracy theories and psychological distress: A five-wave longitudinal study

Previous studies have primarily focused on understanding why people believe conspiracy theories, especially during societal crises (e.g., the COVID-19 pandemic). The investigation of how such conspiracy beliefs would influence people's mental well-being has just begun recently. The present research aims to address this crucial question by testing the relationships between psychological distress and COVID-19 conspiracy beliefs with a five-wave longitudinal study. On the one hand, COVID-19 conspiracy beliefs could be more appealing to people with heightened distress, as these theories apparently help people to make sense of the uncertainty and life-threatening disease outbreak. On the other hand, conspiracy theories could be a source of existential threat and thus, would induce rather than reduce psychological distress. We tested these possibilities empirically by a series of cross-lagged model analyses. Using the random intercept cross-lagged panel model analysis, we only found a between-person association but not a cross-lagged within-person relationship between the two. COVID-19 conspiracy beliefs was predicted by being more politically conservative. These findings were further corroborated by the supplementary latent growth curve analyses. Overall, our findings suggest that conspiracy beliefs may not induce or reduce psychological distress in the context of COVID-19.     

论疾病的诱因

疾病诱因是医学实践中的一个重要现象,对疾病的预防、诊断、治疗和医学科研有显著意义。由于种种原因,对疾病诱因一直缺乏深入研究。本文提出并探讨了以下问题：研究疾病诱因的意义;疾病诱因的本质属性;疾病诱因与病因、危险因素的关系：“诱发”和“疾病危险因素”两概念辨析;疾病诱因的不同类型;疾病诱因发生作用的一般机制和医学实践中处理诱因的一般对策。     

Sex differences in drinking patterns and behaviours among college students in Singapore

The drinking patterns and behaviours of 1,160 students at the National University of Singapore were studied to assess differences among men and women. Analysis suggests men more than women use alcohol and exhibit more problem behaviour resulting from its use.