Differential effects of differing intensities of acute exercise on speed and accuracy of cognition: A meta-analytical investigation

The primary purpose of this study was to examine, using meta-analytical techniques, the differential effects of differing intensities of acute exercise on speed and accuracy of cognition. Overall, exercise demonstrated a small, significant mean effect size (g = 0.14, p < 0.01) on cognition. Examination of the comparison between speed and accuracy dependent variables showed that speed accounted for most of the effect. For speed, moderate intensity exercise demonstrated a significantly larger mean effect size than those for low and high intensities. For speed of processing during moderate intensity exercise, central executive tasks showed a larger effect size than recall and alertness/attention tasks; and mean effect size for counterbalanced or randomized studies was significantly greater than for studies in which a pre-exercise followed by during or post-exercise protocol was used. There was no significant difference between mean effect sizes when testing took place post-exercise compared to during exercise for speed but accuracy studies demonstrated a significantly larger mean effect size post-exercise. It was concluded that increased arousal during moderate intensity exercise resulted in faster speed of processing. The very limited effect on accuracy may be due to the failure to choose tests which are complex enough to measure exercise-induced changes in accuracy of performance.     

Love and Power,and the Development of the Brain,Mind, and Agency

In drawing on my own research and collaborative work with Karl Pribram, I show that love (affective attachment) and power (social control) play a central role in psychosocial evolution. When these relations are coupled in a self-regulating system of cooperative interactions, brain growth is stimulated, mind and agency develop, and stable forms of collective social organization are generated. Focusing on the endogenous dynamics of social collectives, the article is organized in four parts. (A "social collective" is defined as a durable arrangement of relations among two or more individuals that is distinguished by shared membership and collaboration in relation to a common function or goal.) Part I summarizes evidence from developmental neuropsychology and social science to show that stable psychosocial organization, across the human life span, is associated with social interaction organized along two dimensions. One dimension involves love, positive affective attachment, and the second involves power, social regulation of the aroused affective energy. Part II draws on Piaget's theory of cooperation and Bradley and Pribrams' theory of communication to describe how mind and agency are generated, and how stable organization is produced, respectively, from the relations involved in the arousal and regulation of affective energy. Combining elements of the two theories, Part III presents a sketch of a holographic model of collective organization in which goal-directed behavior is generated by a feed-forward process involving imaging and information processing of interaction along the two dimensions. Part IV shows how the model accounts for the emergence of human agency within the context of a more general evolutionary theory, such as Laszlo's. The article concludes with a discussion of my approach for building a "fully human theory of evolution."     

Economic cooperation in western Asia

Any changing system both develops and evolves (individuates). The evolution of the biosphere must therefore be taken in context of the development of the earth, which appears to have followed typical developmental rules of dissipative structures. Two different perspectives are possible on dissipative structures—the classical externalist perspective, which views open systems as becoming progressively negentropic, and the newer, internalist perspective, which views them from within as becoming increasingly disorderly. A history of the universe can be traced, alternately stressing the one and the other perspective, which can form the basic structure of a modern, science‐based creation myth.     

Similarity grouping as feature-based selection

Our visual system groups objects with similar features, such as colour, orientation, or shape. We argue that similarity grouping is nothing more than global selection of a certain feature value, such as red, horizontal, or circular. This account makes the striking prediction that only one feature group can be created at a time. Here we provide the most direct evidence yet for this proposal, using a number estimation task that forces simultaneous processing of all objects. Multiple similarity cues failed to produce grouping in this task, in contrast to proximity, connectivity, and common region, which all showed strong grouping effects.     

Mind The Gap: How Gaps in Neuroscience Can Inform Theological Understanding

Abstract

Gaps are a reality in neuroscience, but are also a rich metaphor toward understanding/dialog in other life aspects with points of separation. Starting with the transportation gap in London, we examine other gaps that may be illusory, along a spectrum, more serious/complex and almost defying resolution. By attending to these gaps, we can then better decide when and where dialog can occur with an appropriate action. Such collaboration, especially between neuroscience and theology, reveals the utility of a model depicting interaction/wholeness of the human brain/mind/spirit in relationship to consciousness and with social implications for better health in a gap-filled society.     

Confidentiality in Professional Medical Ethics

Detection of deception and confirmation of truth telling with conventional polygraphy raised a host of technical and ethical issues. Recently, newer methods of recording electromagnetic signals from the brain show promise in permitting the detection of deception or truth telling. Some are even being promoted as more accurate than conventional polygraphy. While the new technologies raise issues of personal privacy, acceptable forensic application, and other social issues, the focus of this paper is the technical limitations of the developing technology. Those limitations include the measurement validity of the new technologies, which remains largely unknown. Another set of questions pertains to the psychological paradigms used to model or constrain the target behavior. Finally, there is little standardization in the field, and the vulnerability of the techniques to countermeasures is unknown. Premature application of these technologies outside of research settings should be resisted, and the social conversation about the appropriate parameters of its civil, forensic, and security use should begin.     

组织中的社会阻抑:概念界定、影响结果和形成机制

社会阻抑是指长期的、蓄意地妨碍个体积极人际关系的建立和维持,影响个体在工作上的成功及良好名誉的行为.文章在介绍社会阻抑概念和测量的基础上,综述了社会阻抑在心理健康、自我效能感等个人层面和组织氛围层面的消极影响;接着阐明了个体对社会阻抑行为的实施和反应一方面受到人格、认知等内在因素的影响,另一方面也受到社会情境、社会支持等外在因素的影响.未来研究需进一步加强对社会阻抑概念、测量、研究方法、影响因素等方面的深入探讨.     

工作重塑：获得意义性工作与个人成长的新途径

工作重塑是组织行为学中新近出现的一个热点话题,是指员工通过自己对工作进行重新建构来形塑自己的工作认同以及工作角色,其核心目的就是员工对他们的工作进行再设计以获得较高的工作意义感、工作投入以及工作满意度等,进而快乐地工作。在系统梳理有关工作重塑的理论与实证研究文献的基础上,从工作重塑概念的解读、工作重塑的方式与方法、工作重塑的预测因素、工作重塑对个体与组织的影响以及工作重塑的培养策略等方面进行了综述,以便人们更深入地体会其丰富的理论内涵和实践价值;最后,该文指出未来工作重塑的研究应继续注重理论建构的丰富与完善、关注工作重塑的个体与群体差异性以及深化工作重塑与组织之间的关系研究。     

行为的文化差异:几头大象还是一群蚂蚁?

本文综述了关于行为与文化之间关系的研究.综述分为如下几个部分:第一部分介绍了跨文化/文化心理学自20世纪中叶创立以来,在人类行为的共同性、差异性以及心理功能在多大程度上存在文化特异性的问题上的持续争论.第二部分探讨文化差异的魅力,论证为什么迄今的研究往往偏向于寻找行为的差异而不是跨文化的不变性.第三部分简要概述跨文化比较研究中的文化偏误、缺乏等价性等问题及其对数据解释的影响.第四部分重点阐述本文题目中的主题,即跨文化差异的心理组织.这部分内容对目前文化心理学研究中存在的倾向,即从宽泛的维度或笼统的心理功能角度来组织和解释行为差异提出了挑战.第五部分则通过跨文化心理学的历史回顾,以几个重要的传统研究领域为代表来具体说明这种过度泛化的倾向及近期的研究发展,其中也包括了中国研究人员贡献越来越大的文化神经科学领域.最后对跨文化心理学的前景与展望进行了讨论.     

组织成员地位的形成及影响机制

组织成员地位通常是指组织内个体受组织其他成员尊重和钦佩的程度,是近些年备受关注的一个心理学构念。虽然组织成员地位与权力、阶层、面子、基于组织的自尊等概念具有一定的关联性,但它们之间存在着明显的界限。组织成员地位主要受到外在显性因素(形体特征、人口统计特征)、内在心理因素(人格、认知、情绪、行为)以及神经生理因素(睾酮激素、皮质醇激素)的影响,并能够对组织成员的认知、情绪、行为和绩效产生显著的影响。未来研究应当进一步区分组织成员地位的维度,探索组织成员地位的生物学基础和文化差异,关注组织成员地位的动态演化及其后果,并检验团队和组织层面地位分布的作用机制。