创造能力不同学生的分类加工过程差异的眼动特点

在分类理论观的基础上, 本研究在目标匹配范式下, 使用可以表示一定概念的现实物体或场景的图片材料, 通过眼动记录法对分类加工过程的分离, 考察了40名创造能力不同的中学生分类加工过程的差异。结果表明, 在首次加工阶段, 创造能力高和低的被试均先对目标类别概念进行加工, 然后再对选项区的待分类概念进行加工。创造能力高的被试更多地使用概括性的加工策略完成任务并表现出加工的有效性, 创造能力低的被试更多地使用比较性的加工策略表现出加工的无效性。在再加工阶段, 高和低创造能力的被试将加工的重点放在待分类概念上。创造能力低的被试通过概括和比较的策略完成任务。     

方位维度视觉搜索的影响因素

Duncan等人认为,当目标和干扰子之间差异越大且干扰子彼此之间差异越小时,则目标搜索越快。他们的结论定性地描述了目标搜索斜率（反应时间对呈现项目数的函数）的决定因素。笔者从方位维度刺激关系方面进一步定量探究该问题,并提出决定因素为g(T, D, n)（目标方位和干扰子方位间的函数关系）。实验结果证实目标搜索斜率是由g(T,D,n)值决定,目标搜索斜率随g(T, D, n)值增大而减小,相同g(T, D, n)值条件的目标搜索斜率无显著差异     

双通道分配性注意对视听觉返回抑制的影响

本研究基于线索-靶子范式, 操纵目标刺激类型(视觉、听觉、视听觉)与线索有效性(有效线索、中性条件、无效线索)两个自变量, 通过3个实验来考察双通道分配性注意对视听觉返回抑制(inhibition of return, IOR)的影响。实验1 (听觉刺激呈现在左/右侧)结果发现, 在双通道分配性注意条件下, 视觉目标产生显著IOR效应, 而视听觉目标没有产生IOR效应; 实验2 (听觉刺激呈现在左/右侧)与实验3 (听觉刺激呈现在中央)结果发现, 在视觉通道选择性注意条件下, 视觉与视听觉目标均产生显著IOR效应但二者无显著差异。结果表明：双通道分配性注意减弱视听觉IOR效应。     

Attack-target attributes and pigeon aggression: Accessibility,vocalization, and body movements

Characteristics of the attack-target in laboratory tests appear to greatly influence the tendency for aggression to be initiated, maintained, and stopped. To address this question, accessibility, target movement, and vocalization among pigeon conspecifics were investigated in two different aggression tests: 1) paired aggression (PA); and 2) schedule-induced aggression (SI). In the PA test, dominant and subordinate roles formed quickly, and soon aggression episodes started to decline. In part, the subordinate's yielding behavior appeared to discourage attack. The significance of the target bird's behavior on attack frequency was borne out by the finding in the SI test that pigeons attacked a shielded, live, active target more often than a passive one. Furthermore, using a specially constructed stuffed pigeon in the SI test, results indicated that programmed, combined aggressive vocalization and body movement evoked most attacks with the VT schedule, vocalization alone evoked the next highest number of attacks, body movement alone the third most, and combined silence and immobility the least attacks. These findings provide a basis for explaining some past reported results associated with target features and a means for selecting other target features for future study.     

The effects of tail shock on target-biting behavior of confined mice

Mice that are confined in a narrow cylinder readily bite inanimate targets. The following studies were conducted to determine the effects of tail shock on the target biting behavior of two strains of mice. During 20-min daily sessions, ten tail shocks were administered on a fixed-time 2-min schedule. One group of mice received a tone-conditioned stimulus (CS) which terminated with the onset of the shock, and a second group of mice did not. Target bites were collected in eight 15-sec bins over the 2-min trial and cumulated over the session. It was observed that tail shock was followed by an increase in target biting and that there was a comparatively high intershock interval biting rate. In addition, intershock interval biting was suppressed for the duration of the CS. These observations are discussed in terms of the utility of this paradigm for the psychopharmacological assessment of aggressive behavior.     

中美医疗损害责任制度改革之比较研究

医疗损害责任已成为现代社会普遍的医疗法律问题。中美两国医疗损害责任制度改革正朝着相反的方向发展。诉讼机制在美国医疗损害责任中的作用由强变弱，医疗诉讼起诉由易变难，医疗损害赔偿由不限制到相对限制，行政管理式的医疗过错责任制度由无到逐渐提议。我国医疗损害责任制度改革恰恰相反，即诉讼制度的作用由弱变强、医疗损害起诉由难到易，医疗损害赔偿由相对限制到不限制、行政管理式的医疗过错责任制度从有到无。我国医疗损害责任制度的改革趋势值得反思。建议借鉴美国医疗损害责任制度改革的经验。     

Essays: RELIGIOUS MEDICAL ETHICS: A Study of the Rulings of Rabbi Waldenberg

This article seeks to examine how religious ideas that are not the focus of a particular halakhic question become the crux of the ruling, thereby molding it and dictating its bias. We will attempt to demonstrate this through a study of Jewish medical ethics, based on some of the rulings of one of the greatest halakhic decisors of the previous generation: Rabbi Eliezer Yehuda Waldenberg (1915–2006). Rabbi Waldenberg molds his rulings on the basis of a religious principle asserting that the legitimacy of any medical procedure is qualified and limited. Rabbi Waldenberg rejects certain accepted medical practices, including plastic surgery, in vitro fertilization, and organ transplants. Even if these procedures are regarded by other halakhic decisors as being legitimate, for Rabbi Waldenberg they are ethically and religiously improper, and therefore they are halakhically forbidden.     

国内外器官移植的比较研究

随着外科技术的改进,免疫抑制剂的发展,世界器官移植取得了巨大的发展。近年来我国的器官移植已取得了较大的进展,但要完全与国际接轨,还存在许多急需解决的问题。综述了国内外器官移植发展状况及趋势,分析了器官移植中尚待解决的伦理问题,从社会、伦理、经济、文化、心理、医疗等问题探讨了器官移植的新进展。     

关于工程伦理学的对象和范围的几个问题——三谈关于工程伦理学的若干问题

工程是一种独立的社会活动,这是工程伦理学存在的现实基础和学理前提。由于对“工程”的性质、对象和范围存在“广”“狭”两种不同理解,从而也就在工程伦理学的学科定位和学科发展方向上出现了两种理解和两种发展进路。中国学者在进行工程伦理学研究时,不但必须重视“狭义工程伦理学”进路的研究,而且应该更加重视“广义工程伦理学”进路的研究。在研究和分析工程伦理时,必须把伦理分析和其他纬度的分析结合起来,不但应该注意不同纬度之间的相互渗透问题,而且应该注意不同纬度之间的矛盾、冲突、排序和协调问题。     

定量组织速度成像评价酒精性心肌损害左室功能的价值

为了评估定量组织速度成像(QTVI)在评价大量饮酒后心肌损害左室功能改变方面的价值,我们对饮酒量符合酒精性心肌病诊断标准患者21例(B组,每日饮白酒≥150g或啤酒4瓶,每周6天~7天,10年以上),30例健康志愿者(A组,正常对照组)进行常规超声参数及QTVI参数测定,包括:二尖瓣环收缩期峰值速度(Vs)、舒张早期运动速度(Ve)、舒张晚期运动速度(Va)等。结果显示,B组常规各超声参数与A组比较差异有显著性统计学意义(P0.01)。QTVI参数与A组比较Va减低(P0.05),Vs、Ve、Ve/Va显著减低(P0.01)。提示QTVI技术能够有效地评估酒精性心肌损害病左室功能的改变。