TELEOLOGY IN BIOLOGY: WHO COULD ASK FOR ANYTHING MORE?

Abstract. Teleological thinking permeates biology and is useful in pondering unanswered biological questions. Such thinking differs from the usual sense of teleology in that “purpose” in biology carries no imputation of causation. A few examples are given. The teleological system of biology is every bit as elegant a construct of the human mind as any other teleological system and in no way precludes spirituality. I argue that it provides a firmer foundation for moral guidance than supernatural systems.     

脑内移植发展的回顾和展望

脑内移植是神经系统疾病的一种新的治疗措施。它适应临床实践的需要而产生,历经脑内组织移植和脑内干细胞移植两个重要发展阶段,其中脑内干细胞移植的研究主要有神经干细胞移植、胚胎干细胞移植、骨髓和脐血间充质干细胞移植。脑内干细胞移植是目前国内外医学研究的热点,具有广阔的临床应用前景,但也存在许多有待解决的问题,还需要经过一个艰难曲折的探索过程,最终使之成为治疗神经系统疾病的有效方法。它的产生和发展遵循着认识论和辩证法的客观规律,体现了科学认识的实践性、深刻性和创造性。     

朴素物理观和朴素心理观--进化心理学视角

人类在进化过程中解决生存与繁衍问题需要适应物理环境和社会环境。进化心理学认为人类适应物理环境与社会环境的心理机制分别称为朴素物理观和朴素心理观。文章首先阐述了朴素物理观和朴素心理观的有关内容,并指出两性差异的一个重要方面在于移情和系统化的不同组合,同时对其进化意义做了分析。     

Relationships Between Locus of Control, Coping Strategies and Emotional Well-Being in Persons with Spinal Cord Lesion

Relations between locus of control, coping strategies and emotional well-being in persons with traumatically acquired spinal cord lesion (SCL) were examined. The sample included 132 community-residing adults. Structural equation modelling, including confirmatory factor analysis, was used. A model was hypothesized based on the transactional theory of stress and coping where coping strategies mediated the relation between locus of control and emotional well-being. The model showed acceptable fit to the data and was compared with five alternative models. The alternative models fitted the data less well or were difficult to interpret. In the preferred model, persons indicating internal control reported more coping strategies (Acceptance, Fighting spirit) related to increased well-being, whereas persons indicating external control reported a coping strategy (Social reliance) related to poorer well-being. The findings support the stress and coping framework in medical rehabilitation and illustrate why some persons need coping effectiveness training to enhance emotional adjustment.     

情绪对认知加工的影响：事件相关脑电位系列研究

为探讨情绪与认知的相互作用关系及其脑机制,建立了情境图片、面孔、汉字和声音四个系列组成的中国情感刺激材料库,并通过ERP实验对情绪与注意、工作记忆的关系以及特质焦虑者的认知特点进行了研究。结果发现：⑴ 负性情绪刺激在信息加工过程中至少在注意、评价及反应准备这几个阶段具有某种优先权,注意偏向也可在内隐任务下发生,负性刺激对注意资源不足具有某种补偿作用;⑵ 威胁性视觉提示对其后的视觉加工具有调节作用,高焦虑个体对这类性刺激投入了更多的视觉加工资源,而且威胁性刺激对注意的影响可以跨通道进行,威胁性的视觉刺激可以影响触觉注意;⑶ 在情绪对工作记忆的影响方面,负性情绪下空间工作记忆任务引起的P300波幅减小,这种效应可能是基于情绪对顶叶注意系统的调节作用,而在词语工作记忆任务中这种效应消失     

大学生心理健康、创造性人格与创造力关系的模型建构

通过问卷法对我国八大行政区10所不同类型学校的1043名大学生进行调查研究。从创造性思维和创造性人格多侧面认识大学生创造力的特点,从医学模式以及人格角度了解大学生心理健康的状况,在此基础上,借助现代统计技术———结构方程模型,揭示心理健康、个性和创造力之间的关系;将创造力作为内源潜变量,心理健康和创造性人格作为外源潜变量,三者构成的结构模型是可以接受的,该模型表明,大学生的创造力受其创造性人格和心理健康的积极影响。     

共情的神经机制

共情是社会认知中不可或缺的一部分,是维系积极社会关系的社会动机因素。近年来,脑成像技术的发展为共情的神经机制研究开拓了新的视野,共情的神经机制研究取得了很大的进展。共情神经机制的研究主要包括共情的"表征共享"基础、共情的镜像神经元特征、共情调节的早期、晚期评价模型、共情的调节因素以及特殊个体的共情研究。在此基础上指出现有研究中存在的问题和未来研究的方向。     

IMAG(IN)ING THE BUDDHIST BRAIN: EDITORIAL INTRODUCTION

Buddhism has captured the imagination of many in the modern (Western) world. Recently, scientists have seemed eager to discover whether claims about Buddhist meditation can be verified experimentally. Brain research is beginning to produce concrete evidence that mental discipline and meditative practice can change the workings of the brain and allow practitioners to achieve different levels of awareness, as measurable for instance in reaction times to stimuli. The goal of this section of articles in Zygon is to address recent developments in this area. The contributions address a wide array of questions, although they certainly do not cover the whole ground of what one may consider “problems” of meditation. Yet, we believe that the issues addressed here have widespread implications and that they constitute a strong argument for the richness of the meditation domain.     

颅脑肿瘤切除术后硬膜外血肿的原因及预防

浅析颅脑肿瘤切除术后硬膜外血肿形成的原因及预防措施。回顾性分析本科室自2005年7月～2009年7月共计13例脑肿瘤术后硬膜外血肿发生的特点,所有病例血肿均发生于小脑幕上,其中7例位于额部,3例位于颞部,2例位于顶部,1例位于枕部;平均血肿量为(37.3±3.2)ml。脑肿瘤切除术后硬膜外血肿形成机制为多种原因所导致的颅内压及脑脊液动力学改变致硬脑膜与颅骨剥离有关。各环节采取相应预防措施及术后常规复查头颅CT是防治脑肿瘤术后非手术区域硬膜外血肿的关键。     

缺血后适应脑保护的耗散结构基础与脑缺血损伤的非线性特征

脑缺血损伤的机制十分复杂,主要内容涉及谷氨酸兴奋毒性、Ca2＋毒性、自由基损伤、一氧化氮损伤、炎性反应以及内质网和线粒体功能障碍等,这些复杂的机制网络具有耗散结构的非线性特征。近年发现缺血后适应可能通过P13K、Akt、MAPK、PKC等通路,KATP通道,抗凋亡等方式阻止或减轻损伤,从而实现脑保护,而形成一个复杂的信号转导体系。而对复杂的生命系统的研究起着指导作用的耗散结构理论是从更高水平层次研究复杂系统的系统科学,文中将从哲学的角度阐释缺血后适应产生大脑保护的耗散结构基础。