The stereotype rebound effect: Universal or culturally bounded process?

Stereotype rebound occurs when people experience an increase in stereotype use following attempts to suppress them. Two studies were conducted to examine cultural variability in the rebound effect. We hypothesized that, due to their experience suppressing unwanted thoughts, people from collectivist cultures would be less likely to experience the rebound effect than would people from individualist cultures. In both studies, U.S. and Chinese participants wrote two stories about gay men that were coded for stereotype use. Participants in the suppression condition were instructed to not to use stereotypes in their first story. As predicted, in both studies, U.S. participants in the suppression condition showed an increase in stereotype use in the second story, but Chinese participants did not. Potential explanations for cultural differences in the stereotype rebound effect are discussed.     

Object file continuity and the auditory attentional blink

Three experiments were designed to investigate the causes of the auditory attentional blink (AB). Experiments 1A and 1B revealed that there was a larger auditory AB when the target and the distractors were different in two attributes than when they were different in only one attribute. Experiments 2A and 2B showed that for pure-tone distractor sequences, there were small auditory AB deficits when both the target and the probe were different from the distractors in two attributes or in one attribute; however, for pulse distractor sequences, there was a large auditory AB when both the target and the probe were different from the distractors in one attribute, but not when they were different in two attributes. Experiments 3A and 3B revealed that regardless of the relationship of the target to the subsequent distractors, a large AB was generated if it was the first sound in a sequence. Moreover, only a very small AB was apparent when the distractors following the probe were replaced by silence. These results indicated that the auditory AB is affected by both the requirement of creating and consolidating a new object file for the target and the overwriting of the probe by the distractors following it.     

马克思主义关于农业经济形态理论的新发展——读考茨基《土地问题》和列宁《土地问题笔记,1901-1915年》

在史学界对西方农业史的研究中,我国相当一部分学者仍然是按照马克思在19世纪中期前后从对英国农业分析中得出的某此结构去理解西方农业史的发展规律,这种规律以"两极分化"和"小农的消灭"为主要内容.     

序列反应时任务中内隐和外显学习表征方式的实验研究

采用改进的序列反应时任务,探讨内隐和外显学习的知识表征方式,发现内隐组和外显组被试都习得了一定的序列规则.内隐组对标准字母的反应显著快于知觉偏差,而后者则又显著快于对动觉偏差字母的反应;外显组对标准字母的反应显著快于知觉偏差和动觉偏差,而后两者之间则没有区别.以上结果表明外显和内隐学习中知觉表征和动觉表征都起作用,不过在内隐学习中动觉表征起的作用更大.     

心理距离与建构水平的双向作用关系

心理距离概念源于时间建构理论,以自我为中心,参照点是此时此地自己的直接经验,并沿不同维度向外扩展,形成通常所认为的时间、空间、社会距离和假设性四个维度。本文述评了心理距离与建构水平的双向作用关系及其产生原因,即远心理距离使人采用核心、去背景化特征表征事物,近心理距离使人采用外围、背景化特征表征事物;反之,高水平建构使人感知到远心理距离,低水平建构使人感知到近心理距离。未来研究应关注非自我参照点的客观距离与建构水平的关系,以及心理距离与建构水平关系的心理物理学研究等。     

航空模拟舱飞行行为的EPIC理论仿真

利用计算机技术,以执行过程交互控制(EPIC)理论框架为基础,建立了一个虚拟飞行员飞行过程的计算模型,并对人在复杂任务下的作业绩效进行了仿真。结果表明：(1)该研究在原有EPIC理论基础上发展的仿真模型合理可行;(2)仿真结果和实验结果拟合良好,模型具有良好的预测能力。该研究为以仿真方法研究复杂任务的心理过程提供了一次有益的尝试。     

词切分与字间距对引导式汉语文本阅读工效的影响

采用两个实验分别考察了词切分和字间距对引导式汉语文本的阅读工效的影响。实验结果表明：(1)不同步幅下的阅读工效差异显著,其中3字／步条件下的阅读绩效最高,但词切分并未能提高阅读绩效,其中消失1词／步条件反而妨碍了阅读理解,出现1词／步条件也未能显著提高阅读工效;(2)字间距对汉语文本阅读工效有显著影响;(3)10字窗口下,步幅效应和字间距效应都显著;20字窗口下,二者都不显著。     

谈谈中国临床试验研究中受试者权益保障问题

随着国家《药品临床试验管理规范》的颁布与实施,我国新药临床试验研究水平有相当的提高,但也存在着一些问题。其中包括保护受试者权益问题。国家GCP有关章节中明确指出要保护受试者权益。并有具体规定,但在执行中尚有出入,如试验方案未经伦理委员会批准,未向受试者告知试验内容。或告知的不够充分,甚至在未签署知情同意书时就开始试验等。为此,我国采取了相应的措施,如设立药品临床研究培训中心;定期对临床试验基地的研究者以及相关人员如与试验有关的医师,药师及申办者进行GCP培训,基地审核制度,以法律手段来保证受试者权益等。     

初中生有无插图课文的眼动过程研究

本研究使用美国应用科学实验室(ASL)生产的4200R型眼动仪,采用2×2的二因素混合设计,对30名初中二年级学生阅读有无插图且难易不同的课文的阅读理解指标和眼动指标进行考察,结果表明(1)初中生阅读有无插图课文的成绩、时间和速度等阅读理解指标,插图课文显著优于无图课文,插图对课文的阅读理解整合具有明显地促进作用;而且注视次数和回视次数等眼动指标插图课文亦显著优于无图课文.(2)初中生阅读易课文的成绩、时间和速度等阅读理解指标不仅显著优于难课文,而且注视次数、眼跳距离和回视次数等眼动指标易课文亦显著优于难课文.     

基于神经网络的黑白图形视觉识别机制模拟

物理刺激引起视觉系统的生理反应．经过大脑的信息加工而形成视觉。现有多种模型从不同角度对视觉机制进行模拟。该文利用人工神经网络技术对黑白图形识别的视觉机制加以模拟,构建了一个两层BP(back-propagatbn)神经网络模型。应用所建网络对一幅目标和背景灰度分布曲线有重叠的图像进行了成功识别．对大脑视觉加工机制作了有益的探索。