异丙酚不同麻醉深度对学习和记忆的影响

本研究使用加工分离程序探讨了异丙酚不同麻醉深度对学习和记亿的影响。结果发现在无手术刺激存在的情况下,使用异丙酚靶控静脉全身麻醉至OAA／S评分2分(相当于意识消失)时仅使外显记亿消失,提示意识消失时仍存在内隐记亿;麻醉至OAA／S评分1分时可使内隐记亿消失。为避免患者术后对手术中事件有不良回亿,应在解除手术刺激的前提下,麻醉至OAA／S评分1分。     

阈下情绪启动效应的衰退和反应竞争模型

研究包含两个实验,均采用反应时测量的方法。第一个实验考查并验证了阈下情绪启动效应衰退的现象;第二个实验的结果则支持反应时指标测量情绪启动效应发生机制的反应竞争的观点,并提出阈下情绪启动效应的内在机制模型。文章最后用反应竞争的观点对第一个实验中的现象进行了解释,提示内隐学习可能在效应衰退现象中发挥作用。     

攻击性警戒-回避效应的实验研究

本研究通过信号检测论,对54名中学生的图片认知进行了研究。结果发现:(1)对中性图片的辨别力显著高于对攻击者和被攻击者的辨别力,证明了攻击性警戒-回避假设;(2)攻击者和中性图片的判断标准均低于对被攻击者的判断标准,证明存在内隐攻击性;(3)鉴别力d’和判断标准β的性别主效应均不显著,证明了内隐攻击性不存在性别差异。     

外显、内隐记忆中不同认知方式个体的社会定向

以中文双字词为实验材料,分别从两个层面探讨场依存个体与场独立个体对社会词或非社会词的记忆有无偏向。实验一采用双任务,分散注意学习条件,实验二引入加工分离程序(PDP)。研究结果表明:(1)在双任务分散注意学习条件下,场依存个体对非目标社会词存在记忆偏向。(2)在内隐记忆成绩上,场依存个体对社会词存在记忆偏向,场独立个体对非社会词存在记忆偏向。     

启动测量方法在内隐社会认知研究中的应用

内隐社会认知是指在社会认知过程中虽然个体不能回忆某一过去经验,但这一经验潜在地对个体的行为和判断产生影响,其中启动测量方法是进行内隐社会认知研究最常用的一种方法。本文介绍了语义启动任务与评价启动任务这两种启动测量的方法及其内在机制,并从发展性、融合性、有效性、应用性四个方面总结与展望了在内隐社会认知领域中启动测量方法的发展趋势。     

小学儿童在空间概念中的内隐学习

本研究以一、三、五年级小学儿童为被试,探查小学儿童在不同学习模式下空间概念的发展情况。研究结果如下:(1)不同学习模式下,儿童的认知发展呈现不同的趋势;(2)随认知任务难度的增加,不同学习模式的成绩出现差异;(3)不同学习模式下,不同难度任务的成绩存在差异。     

Experiments on the Automaticity of Political Beliefs and Attitudes

Political science has long relied on explicit responses in order to understand what and how people think. New research in the cognitive sciences suggests that this reliance on conscious considerations provides but a partial picture of how citizens think and reason. Given the limitations of conscious working memory and the growing evidence that much of human cognition occurs outside of awareness, the defining empirical assumption of modern public opinion research—that citizens can tell us what is on their minds—seems increasingly suspect. Moreover, social science is particularly challenged by the sensitivity of their topics, which in turn raises social and personal desirability concerns about self-report data. In order to overcome these limitations, we propose an implicit experimental approach. We contend that implicit measures enable us to measure some of the automatic and affective responses and predispositions that influence thoughts and behaviors outside of conscious awareness.     

Weapon Bias: Split-Second Decisions and Unintended Stereotyping

ABSTRACT— Race stereotypes can lead people to claim to see a weapon where there is none. Split-second decisions magnify the bias by limiting people's ability to control responses. Such a bias could have important consequences for decision making by police officers and other authorities interacting with racial minorities. The bias requires no intentional racial animus, occurring even for those who are actively trying to avoid it. This research thus raises difficult questions about intent and responsibility for racially biased errors.     

大学生内隐竞争心理的实验研究

该研究探讨大学生的内隐竞争倾向,考察内隐竞争与外显测量结果的一致程度并探讨男女学生之间是否存在显著差异。实验1考察了被试对竞争图片与非竞争图片的潜在反应倾向。实验2考察被试对竞争词与非竞争词的潜在反应倾向。结果发现:外显竞争与内隐竞争的表现具有一致性。竞争测量中高分组大学生的内隐竞争倾向明显地高于中低得分组,中分组大学生的内隐竞争倾向也明显地高于低分组。同时,内隐竞争倾向还存在着显著的性别差异,男大学生的内隐竞争倾向比女大学生的内隐竞争倾向强。     

Delayed backward conditioning of place preference induced by wheel running in rats

Backward conditioning of place preference has been obtained in hungry rats when wheel running (the rewarding US) is followed immediately by exposure to a distinctive chamber (the CS). We tested whether such backward conditioning would occur with a 10-min delay. In each of four paired exposures, a period of wheel running (2 or 22 h, in separate experiments) was followed by 10 min in the home cage and then 30 min in the CS chamber. Control rats were put in the CS chamber without wheel running. In other similar experiments, a 0-, 10-, or 30-min delay separated wheel running from exposure to the CS chamber. Reliable conditioned place preference (CPP) occurred when the delay was 0 or 10 but not 30 min. The strength of CPP decreased as the delay increased. These findings imply that the reward process initiated by wheel running remains active for some time after running stops. They support the view that the suppression of feeding produced by wheel running in hungry rats (activity anorexia) is mediated by this reward process.