围手术期应激性高血糖管理

由于手术应激原影响,外科大手术围术期发生应激性高血糖屡见不鲜。围手术期血糖监测与控制对临床治疗意义重大。本文概括了围手术期应激性高血糖的发病机制、主要危害,从辩证思维的角度,归纳出灵活掌握控制标准,注意“度”的原则、整体性原则及动态性原则,从而有效控制围手术期发生的应激性高血糖。     

Misdirected by the gap: the relationship between inattentional blindness and attentional misdirection

In several of our articles we have drawn analogies between inattentional blindness paradigms and misdirection. Memmert (2010) however, has criticized this analogy and urged for caution in assuming too much of a close relationship between these two phenomena. Here we consider the points raised by Memmert and highlight some misunderstandings and omissions in his interpretation of our work, which substantially undermine his argument. Debating the similarities and differences between aspects of misdirection and inattentional blindness is valuable and has the potential to highlight the utility of these two phenomena. However, it is important not to be misdirected by subtle differences between particular instances of each phenomenon, at the expense of failing to detect the opportunities that these phenomena present for extending our understanding of attention and awareness.     

Did I read or did I name? Diminished awareness of processes yielding identical 'outputs'

It has been proposed that incompatible intentions (e.g., to inhale and not inhale while holding one’s breath while underwater) are an essential ingredient of conscious conflict. Laboratory tasks such as the Stroop color naming task can instantiate conscious conflict innocuously. However, little research has explored what occurs subjectively at the other end of conflict, when intentions are harmonious. The hypothesis of synchrony blindness proposes that, during harmonious processing, not only may one not experience any conflict, but one may also be unaware that more than one process yielded the same intention/action plan. Accordingly, in the Stroop task, participants reported less of an urge to err (by reading) when words were presented in the congruent condition (e.g., RED presented in red) than when the very same words were presented in standard font color, suggesting that awareness of word-reading was diminished experimentally. The implications of this finding for theories about consciousness are discussed.     

Implicit processing of tactile information: evidence from the tactile change detection paradigm

People can maintain accurate representations of visual changes without necessarily being aware of them. Here, we investigate whether a similar phenomenon (implicit change detection) also exists in touch. In Experiments 1 and 2, participants detected the presence of a change between two consecutively-presented tactile displays. Tactile change blindness was observed, with participants failing to report the presence of tactile change. Critically, however, when participants had to make a forced choice response regarding the number of stimuli presented in the two displays, their performance was significantly better than chance (i.e., implicit change detection was observed). Experiment 3 demonstrated that tactile change detection does not necessarily involve a shift of spatial attention toward the location of change, regardless of whether the change is explicitly detected. We conclude that tactile change detection likely results from comparing representations of the two displays, rather than by directing spatial attention to the location of the change.     

重复知盲效应产生的机制——来自汉语叠词加工的证据

以汉语中的叠词为实验材料,对重复知盲产生机制的类型标记个体化理论和建构理论进行检验。采用RSVP研究范式,在两个实验中让178名被试口头报告列表中出现的所有汉字（全部报告）或列表中最后两个字（部分报告）。结果发现：（1）在呈现速率为128ms和198ms时,完全重复的汉字在全部报告和部分报告任务中均存在RB效应,但在部分报告任务下出现的RB相比全部报告任务的减少了,符合建构理论的假设。（2）在全部报告条件下,不仅重复刺激的正确报告率会降低,而且与重复刺激相关的非重复刺激的正确报告率也会降低。研究表明建构理论比类型标记个体化理论更能解释RB效应的产生机制。     

启动效应再探──预诱发提取策略和启动刺激显现时间的影响

本研究旨在发现启动效应与启动刺激呈现时间及预诱发提取策略的关系．实验Ⅰ表明在不同的建阈值的判断任务之后,语义启动效应随启动刺激呈现时间的减少而减小,但减小到某一值后又开始增大,而重复启动效应则随启动刺激呈现时间减少而增本,但增大到某一值后又开始减小,这一结果为证明中心──周围提取假说（Ｃａｒｒ,１９９０）提供了证据．实验Ⅱ的结果是：在相同的提取策略下,启动效应随启动刺激呈现时间的延长而增大,这一结果充分说明无意识知觉加工的作用;而在相同的呈现时间下,提取策略对启动效应的作用受启动刺激呈现时间长短的制约：当呈现时间达到或超过某一值时,提取策略导致启动效应是“Ｕ”型,小于该值时,提取策略则不起作用。     

Understanding the Moral Phenomenology of the Third Reich

This paper discusses the issue of German moral responsibility for the Holocaust in the light of the thesis of Daniel Goldhagen and others that inherited negative stereotypes of Jews and Jewishness were prime causal factors contributing to the genocide. It is argued that in so far as the Germans of the Third Reich were dupes of an 'hallucinatory ideology,' they strikingly exemplify the 'paradox of moral luck' outlined by Thomas Nagel, that people are not morally responsible for what they are and are not responsible for. The implications of this paradox for the appraisal of German guilt are explored in relation to the views of a number of recent writers on the Holocaust.     

重复知盲:刺激呈现时间及作业对反应时的影响

本研究用汉字材料及反应时的数据来探讨重复知盲现象及有关机制。在实验一中,被试必须判断快速连续呈现的两个字究竟是否包含两个或是只有一个动物字。结果显示在７０毫秒时,有重复知盲现象（重复动物字组比非重复动物字组的反应时为长）;在１００毫秒时则无;另外,在２００毫秒时则有重复启动现象产生（重复动物字组比非重复动物字组的反应时为短）。实验二采用同样的材料及呈现方法,但被试只需要判断以７０毫秒呈现之实验材料中的第二个字是否动物字。结果发现类似重复启动的现象,这些结果显示,呈现时间与作业是决定重复刺激究竟造成知盲或启动效应的重要因素。本文另外还讨论本研究的方法与结果对了解重复刺激心理加工的可能贡献。     

中国少数民族考生与外国考生HSK成绩的公平性分析

该研究利用项目功能差异(Differential Item Functioning,简称DIF)理论,对HSK考生中不同两个群体——外国人和中国国内的少数民族,进行题目的反应分析。考查HSK的题目是否存在不利于某一群体。具体做法：采用MH和SIBTEST方法检测DIF,利用标准化的离散分析方法和SIBTEST的项目束分析法鉴别DIF的真伪,并寻找造成DIF的原因。由数据分析的结果可知,HSK(初、中等)A卷对对外国考生和中国国内的少数民族考生存在一些有DIF的题目。     

汉字加工中呈现速率对重复知盲效应的影响

实验采用RSVP任务,考察了汉字加工中呈现速率对重复知盲效应的影响,结果发现：（1）在加工汉字重复刺激时,存在着重复知肓（RB）效应,其强度随着呈现速率的变化而改变,当呈现速率较快时,正确率较低,呈现速率较慢时,正确率较高;（2）与加工英文信息比较,在汉字加工中,RB效应的出现似乎推迟了一段时间,这可能从另一方面反映出加工汉字比英文需要不同的加工时间．即加工信息的难易程度也影响RB效应出现的时间。