Effects of Prenatal Social Stress on Offspring Development: Pathology or Adaptation?

ABSTRACT— In nonhuman mammals, the social environment in which pregnant females live is critical for their offsprings' brain development, endocrine state, and social and sexual behavior later in life. Social instability during pregnancy generally brings about a behavioral and neuroendocrine masculinization in daughters and a less pronounced expression of male-typical traits in sons. We favor the hypothesis that such behavioral effects of prenatal social stress are not necessarily "pathological" (nonadaptive) consequences of adverse social conditions. Rather, pregnant mothers could be adjusting their offspring to their environment in an adaptive way.     

大学生时间管理倾向对其社会适应能力的影响

该研究对180名大学生的时间管理倾向及其社会适应能力的关系进行探讨。结果发现,被试的时间管理倾向及其3个维度（时间价值感、时间监控观、时间效能感）,以及社会适应能力在性别、学科等因素上没有显著差异;时间管理倾向高分组和低分组被试在社会适应能力上有极其显著的差异。将社会适应能力对时间管理倾向3个维度进行逐步回归分析,结果表明,时间效能感对社会适应能力有好的预见性。因此,开展卓有成效的时间管理训练可以作为提高大学生社会适应能力的一种方法。     

Olfaction as a model system for the neurobiology of mammalian short-term habituation

Olfaction represents an ideal model system for the study of mammalian habituation given that it is an anatomically relatively simple system with strong reciprocal connections to the limbic system, driving both reflexive and non-reflexive (motivated) behaviors that are easily quantifiable. Data are reviewed here demonstrating short-term habituation of the odor-evoked heart-rate orienting reflex described according to the criteria for habituation outlined by Thompson and Spencer [Thompson, R. F., & Spencer, W. A. (1966). Habituation: A model phenomenon for the study of neuronal substrates of behavior. Psychological Reviews, 73(1), 16–43]. A necessary and sufficient mechanism of short-term habituation is then described, which involves a metabotropic glutamate receptor mediated depression of afferent input to the piriform (primary olfactory) cortex. Finally, evidence for, and a mechanisms of, dishabituation of the orienting reflex and cortical adaptation are described.     

Development and validation of the brief Relational, Individual and Collective (brief RIC) Self-Aspects scale

A brief nine-item context-free version of the 30-item Relational, Individual and Collective (RIC) Self-Aspects scale was developed for use in short surveys and time-constrained telephone interviews. Two monocultural studies were conducted using Australian samples. In Study 1 ( N  = 175 university students) the Brief RIC demonstrated internal reliability, factorial validity and convergent construct validity with the original RIC. In Study 2 ( N  = 1000 adults) the three-factor structure was replicated and demographic correlates of self-aspects revealed new directions for future exploration. The Brief RIC will benefit from further validation, particularly in cross-cultural samples, but appears to be suitable for research purposes which require brevity.     

Social neuroscience of child and adolescent depression

The social neuroscience of child and adolescent depression is inherently multidisciplinary. Depressive disorders beginning early in life can have serious developmental and functional consequences. Psychopathology research has described depression's defining clinical and contextual features, and intervention research has characterized its response to treatment and prevention programs. Neuroendocrine, electrophysiological, and neuroimaging studies have identified core neurobiological aspects of early-onset mood disorders. These areas are reviewed using a developmental social neuroscience perspective for integrating disparate observations. The paper introduces a dynamic adaptive systems framework, and it discusses hedonic capacity, stress sensitivity, ruminative self-focus, and attentional impairments as fundamental components of mood disorders.     

Evolution and Two Popular Proposals for the Definition of Function

Summary  In the biological realm, a complete explanation of a trait seems to include an explanation in terms of function. It is natural to ask of some trait, “What is its function?” or “What purpose in the organism does the particular trait serve?” or “What is the goal of its activity?” There are several views concerning the appropriate definition of function for biological matters. Two popular views of function with respect to living things are Cummins’ organizational account and the Griffiths/Godfrey-Smith modern history account. Whereas Cummins argues that a trait functions so as to contribute to the general organization of some organism’s present structure, Griffiths, and Godfrey-Smith argue that a trait functions because of its fitness with respect to the organism’s recent evolutionary history. In this paper, I show how these accounts can be made compatible and compliment one another. Given that structure, organization, operational flexibility, function, and evolutionary history are all factors to be considered in an organism’s makeup, we should expect that the traits of an organism function the way they do because such traits presently contribute to the overall organization of the organism (Cummins) as well as were selected for in the organism’s species’ recent ancestry (Griffiths/Godfrey-Smith).     

Capturing the Naturally Occurring Superior Performance of Experts in the Laboratory: Toward a Science of Expert and Exceptional Performance

ABSTRACT— Expertise researchers have traditionally shied away from studying the highest levels of achievement in favor of studying basic cognitive processes, such as memory and categorization. In this article, we present a different approach that is focused on capturing superior (expert) performance on representative tasks that reveal the essential characteristics of expertise in a given domain. In domains where expert performance is measurable, acquisition is gradual and the highest levels are only attained after 10 years of intense preparation—even for the most "talented." Analyses of reproducibly superior performance show that it is mediated by physiological adaptations and cognitive skills acquired as a result of the cumulative effects of special practice activities (deliberate practice). It appears that the genes necessary to attain such adaptations and expert skills can be activated in healthy children—the only clear exceptions to date being genes that control body size and height. Our knowledge of how experts acquire their superior skills provides insights into the potential for human adaptation and skill acquisition and has important implications for theories of the structure of general and expert cognition, as well as for training interventions in applied psychology and education.     

Indecisiveness and response to risk in deciding when to decide

When making decisions, people must determine not only what to choose but also when to choose. Do individuals modulate behavior in response to potential risks associated with delay in determining when to choose? The present work provides evidence that at least one group of people—indecisive individuals—do not. Two process‐tracing studies simulated a 5‐day college‐course selection period in which new course alternatives appeared on each day. In a risk‐free condition, no risks were associated with delay of decision making over the days. In a risk condition, each day of delay was associated with a risk of loss of existing course alternatives. Unlike decisive individuals, who modulated days of deliberation in response to presence versus absence of risk, indecisive individuals did not. The results illustrate not that indecisive individuals show uniformly increased delay relative to others, but rather that their delay behavior may be more striking in its unresponsiveness to risk. Copyright © 2007 John Wiley & Sons, Ltd.     

医学专业精神及医疗保密：美国历史及现状中的冲突

讨论卫生部门宣传和加强强制汇报的法律的努力、强制性汇报的规定与医学专业精神及个人自主性之间的冲突、私人医生避免遵守这些规则的策略、病人和倡议者设法避免强制性登记和检测的策略,以及医生/病人和公共卫生官员达成的妥协。最后对公共卫生政策提出建议,认识到强制性汇报存在的问题和卫生政策透明度的重要性。     

智商常态人群的智力个体差异研究述评

智力功能个体差异星正态分布有不同观点：g因素决定特殊能力分化程度差异论、因素搭配差异论;单一认知机能、认知机能系统中的一个或者几个认知机能缺陷影响智力功能差异论;认知发展理论的要素功能大小和要素关联关系强弱、结构差异论;文化活动结构差异和遗传进化的神经效率差异论;神经活动特性水平和神经活动区域效率差异、人格中介情景任务和人