体育锻炼促进认知功能的脑机制

不同类型的体育锻炼对各种群体的多种认知功能均具有促进作用, 而相关的生理机制也在不同水平得到研究。在微观水平, 体育锻炼有利于脑细胞的营养供给和能量代谢, 并且能促进神经元的存活和突触生成。在宏观水平, 体育锻炼不仅能够提升海马和小脑等脑结构的体积, 还影响脑区激活水平和脑区间功能连接。值得注意的是, 体育锻炼对认知的促进效应受到诸多因素的影响, 比如个体差异、时间, 以及体育锻炼和认知刺激的相互作用等, 这些影响因素也为在两个水平上系统地阐明体育锻炼促进认知的脑机制提供了新的视角。     

The efficacy of the Triple P-Positive Parenting Program in improving parenting and child behavior: a comparison with two other treatment conditions

The aim of this randomized controlled trial was to evaluate the efficacy of an evidence-based parenting program (the Triple P-Positive Parenting Program), intending to improve parenting skills and children's well-being. Parents participating in a Group Triple P program (n=50 couples) were compared with parents of a non-treated control group (n=50 couples) and parents participating in a marital distress prevention program (couples coping enhancement training (CCET)) (n=50 couples). The two major goals of this study were (a) to evaluate the efficacy of Triple P compared with the two other treatment conditions over a time-span of 1 year and (b) to answer the question whether this program that was developed in Australia is culturally accepted by Swiss parents. Results revealed that Triple P was effective with Swiss families. Mothers of the Triple P group showed significant improvements in parenting, parenting self-esteem, and a decrease in stressors related to parenting. Women trained in Triple P also reported significantly lower rates of child's misbehavior than women of the two other conditions. However, in men only a few significant results were found. Positive effects of the relationship training (CCET) were somewhat lower than those for the Triple P. These findings are further discussed.     

Neuropsychological Functioning and Antiretroviral Treatment in HIV/AIDS: A Review

This article presents a review of studies that have investigated the neuropsychological effects of antiretroviral treatment (ART) for HIV-1 infection. It provides a brief overview of the era of monotherapy, dual-therapy, and an extended overview of the current era of combination antiretroviral therapy (CART). This review highlights that while CART has had a dramatic effect on the incidence and the severity of HIV-associated neurocognitive disorders (HAND), HAND, in its mild form, still remains prevalent. New causes of this sustained prevalence are poor CNS penetration of some antiretroviral agents, drug resistance, poor adherence, potential neurotoxicity, co-morbidities such as the long-term CART side effects in relation to cardio-vascular disease, and chronic HIV brain infection that may facilitate the expression of new forms of neurodegenerative processes. The review emphasizes the need to address methodological limitations of published studies and the need for large and representative cross-disciplinary longitudinal investigations across the HIV illness span.     

Sound enhances detection of visual target during infancy: a study using illusory contours

In adults, a salient tone embedded in a sequence of nonsalient tones improves detection of a synchronously and briefly presented visual target in a rapid, visually distracting sequence. This phenomenon indicates that perception from one sensory modality can be influenced by another one even when the latter modality provides no information about the judged property itself. However, no study has revealed the age-related development of this kind of cross-modal enhancement. Here we tested the effect of concurrent and unique sounds on detection of illusory contours during infancy. We used a preferential looking technique to investigate whether audio-visual enhancement of the detection of illusory contours could be observed at 5, 6, and 7 months of age. A significant enhancement, induced by sound, of the preference for illusory contours was observed only in the 7-month-olds. These results suggest that audio-visual enhancement in visual target detection emerges at 7 months of age.     

Helping behavior following a failure experience1

Abstract: A study was conducted to reconcile two conflicting models on the relationship of shame to helping. According to the negative-mood relief model, ashamed people try to help others to relieve a negative mood induced by a shameful experience. The self-esteem maintenance model suggests, however, that people whose self-esteem is threatened utilize helping behavior instrumentally to restore self-esteem. In the present study, 84 male subjects took an alleged intelligence test and received fictitious poor results, and in the next experimental stage, set up by a male experimenter who was not an observer of the subject's failure in the former stage, they were requested to help a person also unaware of subject's failure. On the basis of this paradigm for the shame-helping relation, the “ability” of the target person compared to the subject (superior vs. inferior) and the content of helping (meaningful vs. not meaningful) were manipulated. One level of each experimental variable was supposed to serve as an obstacle to maintaining self-esteem. Besides this 2 times 2 factorial design, subjects were classified as high or low in self-esteem; a control condition (with 16 subjects) was also included. The results provided unequivocal support for the self-esteem maintenance model: ashamed subjects were helpful only in the inferior-target/meaningful-help condition. This result did not interact with the relative levels of self-esteem; the lack of this interaction is explained in terms of self-esteem being trait.     

The ontogenesis of primary prevention: Lengthy strides and subbed toes

Reviews evolution of the concept of primary prevention in the past 40 years and cites progress in overcoming significant early deterrents (e.g., loosely anchored, overinclusive definitions; weak supporting empirical base) to this development. Highlights the growing trend to define the concept specifically around the yoked notions of risk, and the goal of forestalling major psychological dysfunction. This de facto shift in definitional emphasis has obscured primary prevention's early vision of promoting health and wellness. Stresses need for a comprehensive, multilevel, proactive approach targeted systematically toward the enhancement of psychological wellness in all people, from the start. This article is based on the Seymour B Sarason Award talk given at the 103rd annual meeting of the American Psychological Association, New York City, August 12, 1995. Although the spoken and written versions are similar, and their intended bottom lines identical, the two differ in several ways. One is that the talk's many references to Sarason'shighly influential contributions to the field, and his unique, thought-stimulating style, do not appear here. They continue, however to be keenly felt. Those views are a matter official record (see “In Honor of Seymour Sarason,”American Journal of Community Psychology, 1976, Vol. 4, pp. 244–246). A second difference between the talk and the article is that the former was more relaxed, breezier, and less jargonesque. Although I have tried to preserve some of that informality, the article is surely stuffier than the talk.     

THE THEOLOGICAL DEBATE OVER HUMAN ENHANCEMENT: AN EMPIRICAL CASE STUDY OF A MEDIATING ORGANIZATION

For most theologians, theology should ultimately be used by the laity and/or the public. However, the religion and science debate has not focused on the divide between theologians and the laity. In this case study I examine the debate among theologians about human enhancement. I focus on the extent to which the structure of the debate in a “mediating organization” between the theologians and the public coincides with the structure of the debate among the theologians. I conduct a survey of participants in the organization, and find that the basic divides among the theologians are largely replicated. These results, when combined with studies of the theologians themselves and the laity, provide a more holistic understanding of the future debate about human enhancement.     

The contribution of self‐deceptive enhancement to display rules in the United States and Japan

Socially desirable responding was tested as a mediator of American and Japanese college student differences in display rules. Americans endorsed the expression of anger, contempt, disgust, fear, happiness, and surprise more than the Japanese. Americans also exhibited more self‐deceptive enhancement than the Japanese, and self‐deceptive enhancement partially mediated country differences on the endorsement of anger, disgust, happiness, and surprise, but not contempt and fear. These findings highlight the role of self‐deceptive enhancement in contributing to expressive display rules and support the point of view that socially desirable responding is a reflection of one's personality and culture rather than a statistical nuisance.