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长期戒断海洛因成瘾者冲动性相关脑区的结构及功能特征
海洛因成瘾 基于体素的形态学分析 低频振幅 局部一致性 静息态功能连接
2021/8/13
冲动性是药物成瘾者的典型特征,它既包含了抑制控制成瘾者药物使用的力量,也包含驱动成瘾者使用药物的成分,两者不平衡导致冲动性用药行为。海洛因成瘾者本身具有冲动性人格特质,长时间的海洛因使用又会造成成瘾者冲动性相关的大脑结构与功能的异常。目前难以确定戒断后,冲动性及相关的大脑结构与功能是否还呈异常状态。本研究采用基于体素的形态学分析、低频振幅、局部一致性和功能连接方法,以35例海洛因成瘾戒断者和无任何...
采用成语谜题选择任务,通过学习-测验范式探究顿悟促进记忆的认知神经机制。实验1采用行为实验,验证成语谜题选择范式在探究顿悟促进记忆中的有效性,结果显示,相比于寻常联结条件,新颖联结条件下被试在学习阶段具有更高的顿悟感得分,在测试阶段具有更高的正确率,范式的有效性得以验证。实验2采用fMRI技术探究顿悟促进记忆的关键脑区。结果显示,相比于失败记忆新颖联结条件,成功记忆新颖联结条件更强地激活了顿悟过程...
视觉词汇识别的事件相关电位(ERP)研究发现早期的脑电成分N170具有对词汇的敏感性, 可能反映了字形、语音和语义加工, 目前还没有得到统一的结论。本研究利用汉字形声字声旁表音和形旁表义的独特性, 使用神经适应范式深入考察了N170对汉字亚词汇语音和语义信息的敏感性。实验1操纵了连续汉字的声旁和整字读音重复呈现探究其诱发的神经适应性, 结果发现了左侧电极的N170对声旁和整字读音重复都产生了神经适...
规范错觉是指个体的规范感知与实际存在于群体中的社会规范之间存在差异, 规范错觉影响了社会生活的方方面面。对957份问卷调查的分析显示, 人们普遍高估了他人的食物浪费(行为错觉)以及对浪费的赞同程度(态度错觉), 而这两种错觉又加剧了人们自身的浪费行为。中介效应检验显示, 印象管理中的社交性维度部分中介了两种错觉与浪费行为间的关系。两个随机对照实验进一步检验了描述性(命令性)规范信息对行为(态度)错...
基于人-环境匹配理论和压力认知交互作用理论, 本文探讨了下属需求和接受的授权型领导匹配性对下属态度、行为和绩效的影响及情绪耗竭的中介作用。本文分别通过对150位领导与150位下属(研究1)、50位领导与243位下属(研究2)的配对样本开展两项多时点、多来源的问卷数据收集, 并采用跨层次多项式回归和响应面分析方法得出以下结论: (1)下属需求和接受的授权型领导失配会导致下属情绪耗竭; (2)相对于授...
教师主观幸福感作为衡量教师群体心理健康状况的一项关键指标, 对其现状的调查和分析至关重要, 同时, 对其随社会变迁的动态变化趋势、及其与社会变迁的关系的监测也不可忽视。本研究对2002至2019年间的51篇采用总体幸福感量表(GWB)测量教师主观幸福感的研究报告(共包括13600名教师)进行横断历史的元分析。研究发现：(1)教师主观幸福感均值与年代呈显著负相关, 这说明我国教师主观幸福感在逐年下降...
Invariants and cues,a commentary on Joel Norman's "Two visual systems."
Invariants cues commentary Joel Norman Two visual systems
2015/8/13
Invariants and cues,a commentary on Joel Norman's "Two visual systems."
Reflections on surfaces:A cross-disciplinary reply to Stevens
Reflections surfaces cross-disciplinary Stevens
2015/8/13
New interest in surface perception can be found in both psychological and in artificial intelligence communities. Both disciplines serve to gain through under-standing, even adopting, the other's meth...
What is Animacy in Dynamical Movement?
dynamical movement motion analysis animacy discrimination evolutionary algorithm
2015/8/5
What is Animacy in Dynamical Movement.
Can premorbid episodes of diminished vagal tone be detected via histological markers in patients with PTSD?
Acute stress reaction Parasympathetic nervous system Gulf war syndrome Nucleus ambiguus Dental enamel hypoplasia (DEH)
2015/7/30
While laboratory methods for estimating genetic susceptibility for adult psychopathology have received much recent attention, laboratory methods for objectively estimating a person’s early autonomic n...
A Comparison of Alcohol Abusers who have and have not Experienced Blackouts
Alcoholic Blackout Alcohol Abuse Cognitive Impairment
2015/7/30
This study examined the proposition that the experience of alcoholic blackouts is related to other indices of cerebral involvement in the alcoholic process. In particular it was suggested that those w...
Diminished Stress Resilience in Institutionalized Elderly Patients:Is Hypovitaminosis D a Factor?
stress hypovitaminosis elderly
2015/7/30
Diminished Stress Resilience in Institutionalized Elderly Patients:Is Hypovitaminosis D a Factor?
Agoraphobia in an evolutionary context.(Author's reply)
PTSD Evolution Agoraphobia DSM V Criterion A
2015/7/29
PTSD-like Agoraphobia versus innate agoraphobia in DSM-V and ICD-11.
Differences in Resilience and University Adjustment Between School Leaver and Mature Entry University Students
Differences Resilience University Adjustment Mature Entry University Students
2015/7/24
Research shows that mature entry and school leaver students have vastly different experiences when transitioning to the university environment. It is suggested that the transition to university is a m...