对恐怖情绪的调节:认知重评和表达抑制的差异——一项ERP研究

本研究采用事件相关电位(ERP)技术,通过测量由视觉诱发的脑电成分晚正波(LPP)来比较情绪调节策略在生理电特征上的差异,探讨认知重评和表达抑制的优劣。实验结果表明:(1)从波幅的角度来比较:在400—600ms时间窗口内,认知重评条件下恐怖图片诱发的LPP波幅显著小于在自由观看条件下的波幅,而表达抑制和自由观看组所诱发的LPP波幅差异较小。(2)从时间进程的角度来比较:认知重评与自由观看组的差异发生在400ms并持续到600ms;而表达抑制和自由观看之间的差异发生在450ms但是只持续到550ms。这表明认知重评相较于表达抑制,对负性情绪起调节作用开始较早,并且持续时间较长。这为认知重评优于表达抑制策略提供了神经生理学上的证据。     

心理账户:缘起、理论及应用

心理账户深刻地体现了心理学和经济学的结合,是在行为经济学的大背景下开始研究的。心理账户是人们在心理上对结果,尤其是经济结果的编码,分类和估价的过程,它反映了人们在进行资金财富决策过程中的心理认知过程。心理账户与经济账户的运算法则不同,它具有非替代性。心理账户与金融投资结合形成了行为资产组合理论,心理账户与消费经济结合,形成了行为生命周期理论。     

心理账户和薪酬激励的实验研究

心理账户是人们在心理上对结果,尤其是经济结果的编码,分类和估价的过程,它反映了人们在进行资金财富决策过程中的心理认知过程。心理账户有着有别于经济账户的运算法则。实验研究发现,改变薪酬的预期参照点,可以改变人们对同一结果的认知评价,从而达到不同的激励效果;低金额奖酬时人们倾向于选择物品,而高金额奖酬是人们倾向与选择现金。     

竞争情境下社会比较认知偏差实验研究

本文以在校大学生为被试,考察社会比较的一个重要领域—学业竞争中的比较偏差。通过操纵竞争双方的实力(强VS.弱)以及竞争对手的信息清晰度(清晰VS.模糊)来考察不同的任务类型与信息清晰度对竞争中认知偏差的影响,以及探讨认知偏差对决策者决策意图的影响。结果发现,在社会比较中,面对不同类型的问题,会出现不同的认知偏差;竞争双方信息清晰时优于常人效应会减弱;认知偏差会影响个体的决策意图和决策行为。     

Using SAS PROC TCALIS for multigroup structural equation modelling with mean structures

Multigroup structural equation modelling (SEM) is a technique frequently used to evaluate measurement invariance in social and behavioural science research. Before version 9.2, SAS was incapable of handling multigroup SEM. However, this limitation is resolved in PROC TCALIS in SAS 9.2. For the purpose of illustration, this paper provides a step-by-step guide to programming the tests of measurement invariance and partial invariance using PROC TCALIS for multigroup SEM with mean structures. Fit indices and parameter estimates are validated, thus providing an alternative tool for researchers conducting both applied and simulated studies. Other new features (e.g., different types of modelling languages and estimation methods) and limitations (e.g., ordered-categorical SEM and multilevel SEM) of the TCALIS procedure are also briefly discussed.     

Integrating physical constraints in statistical inference by 11-month-old infants

Much research on cognitive development focuses either on early-emerging domain-specific knowledge or domain-general learning mechanisms. However, little research examines how these sources of knowledge interact. Previous research suggests that young infants can make inferences from samples to populations (Xu & Garcia, 2008) and 11- to 12.5-month-old infants can integrate psychological and physical knowledge in probabilistic reasoning (Teglas, Girotto, Gonzalez, & Bonatti, 2007; Xu & Denison, 2009). Here, we ask whether infants can integrate a physical constraint of immobility into a statistical inference mechanism. Results from three experiments suggest that, first, infants were able to use domain-specific knowledge to override statistical information, reasoning that sometimes a physical constraint is more informative than probabilistic information. Second, we provide the first evidence that infants are capable of applying domain-specific knowledge in probabilistic reasoning by using a physical constraint to exclude one set of objects while computing probabilities over the remaining sets.     

Induction, overhypothesis, and the origin of abstract knowledge. Evidence from 9-month-old infants

Human cognition relies on the ability to extract generalizable knowledge from limited evidence. One type of inductive learning, overhypothesis formation, allows learners to make inferences that take them beyond the limits of direct experience, leading to the creation of abstract knowledge. The developmental roots of this ability have yet to be investigated. We report three experiments examining whether 9-month-old infants are capable of forming overhypotheses. Our results show that when given evidence about a few objects in some category, infants formed a second-order generalization about categories in general. These findings provide evidence that infants possess a powerful mechanism for inductive learning-a mechanism that may be applied to many domains and that can account for the development of many inductive biases later on.     

实现医学整合,满足门诊患者新需求——“一站式”多学科综合门诊

为了在门诊落实"一切以病人为中心"的服务理念,通过调查、了解病人的需求,改变传统的就医模式,将多学科整合,推出创新的"一站式"多学科综合门诊。改善了就诊流程,简化了就诊手续,对疑难杂症提供全方位、多学科综合诊疗,同时缩短患者就诊等候时间和多次往返各门诊的不便,减少就诊环节,实现医学整合,满足患者需求。     

大型综合性医院手术室统筹及加快周转的措施

科学的统筹规划、紧凑有序的接台管理,能够更好地服务患者,提高医院工作效率。探索大型综合性医院手术室合理有效地安排手术、加快手术周转的措施。讨论如何有效利用手术室的物资和人力资源,进行全盘科学的筹划,抓住关键环节,合理安排工序。进而成功破除制约手术科室的瓶颈,大大提高了手术科室的效率。