检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

多目标视觉追踪的现象、规律和认知加工机制

心理科学进展 2010年第12期18卷 1919-1925页

作者：魏柳青张学民刘冰鲁学明李迎娣北京师范大学心理学院北京100875 认知神经科学与学习国家重点实验室北京100875

传统注意研究多基于单个注意焦点和采用静态视觉信息。由Pylyshyn(1988)提出的多目标追踪范式则基于动态场景,是研究同时追踪多个目标的容量有限的注意机制比较常用的范式。在多目标追踪基础上发展起来的多身份追踪范式中的对象带有身... 详细信息

传统注意研究多基于单个注意焦点和采用静态视觉信息。由Pylyshyn(1988)提出的多目标追踪范式则基于动态场景,是研究同时追踪多个目标的容量有限的注意机制比较常用的范式。在多目标追踪基础上发展起来的多身份追踪范式中的对象带有身份信息,涉及到较复杂的认知机制,如注意、视觉工作记忆等。探讨以上两种视觉追踪的认知加工机制对真实或模拟情境中动态信息的认知加工活动有重要的理论价值和实践指导意义。

关键词：多目标追踪多身份追踪注意视觉工作记忆

Personality and neurochemicals in the human brain: A preliminary study using 1H MRS

在线全文

学校读者我要写书评

暂无评论

Science Bulletin 2005年第20期 64-68页

作者： XU Shiyong1,2. PENG Danling2. JIN Zhen3, LIU Hongyan2.&YANG Jie2. 1. School of Labor relations and human resources, Renmin university of China, beijing 100872. China 2. {2. key Laboratory of cognitive neuroscience and learning, Bei- jing normal university, beijing 100875, China 3. Center for fMRI and Department of Radiology, 306 Hospital, beijing 100101, China

To investigate the neuro-biological bases of introversion-extraversion personality traits, the concentra- tion of four neurochemicals (Cho, mI, α-Glx and NAA) in anterior cigulate gyrus between normal extroverts and in- troverts were examined using non-invasive 1H MRS tech- nique. Our study revealed that introverts have significantly higher level of α-Glx, Cho and mI in the anterior cingulate gyrus than extroverts. This result provides new evidence that the anterior cingulate gyrus is related to personality traits partly in support of Eysenck’s supposition that introverts have higher arousal level than extroverts. Moreover, this result offers neurochemical data for psychobiological theo- ries of personality.

关键词： extraversion introversion neurochemical 1H MRS.

Resource Demand of Sound Production in Reading Chinese Characters aloud

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Resource Demand of Sound Production in Reading Chinese Chara...

Retrospect and prospect of watershed hydrological model

中华医学会第九次全国物理医学与康复学学术会议

作者： SONG Lu-ping Department of Neuro-rehabilitation,beijing Charity Hospital,Capital Medical university Rehabilitation College and China Rehabilitation Research Center.beijing 100068,China NING Ning PENG Dan-ling state key Laborary of cognitive neuroscience and learning,beijing normal university 100875 beijing China

Preface Considering that speech production is a rapid motor control process, featuring the interplay of multiple systems and influenced by many complex factors,it was difficult to dissociate sound production from reading aloud and hard to confirm such hypotheses as“whether sound production is an automatic process of normal persons in reading aloud”and“whether speech disorders like stuttering and aphasia are relative to deficient sound produc- tion”

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Communications in Nonlinear Science and Numerical Simulation 2001年第3期6卷 172-177页

作者： B. CHEN, L. Z. XIA, Z. F. YANG and G. Q. CHEN state key Laboratory for Studies of Turbulence and Complex Systems / Center for Environmental Sciences, Peking {2., beijing 100871, China Institute of Environmental Sciences, beijing normal Universitg, state key Lab. Studs. T./C.S. Center for Environmental Sciences Peking University Beijing 100871 China Institute of Environmental Sciences Beijing Normal University Beijing 100875 China

A brief review is presented of the development of watershed hydrological models. Conventional Hydrological Model, Grey Hydrological Model, Digital Hydrological Model and Intelligent Hydrological Model are analyzed. The frameworks of Fuzzy cognitive Hydrological Model and Integrated Digital Watershed Hydrological Model are presented.

关键词： watershed hydrological model digital watershed complex system

Temporal Sequence and Neural Organization of the Number Meaning Processing in One-digit Solution Verification

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Temporal Sequence and Neural Organization of the Number Mean...

Reference values for amplitude-integrated electroencephalogram in infants from preterm to 3.5 months of age

第一届全国脑与认知科学学术研讨会

作者： Xinlin Zhou Chuansheng Chen Renlai Zhou Hongchuan Zhang Hui Zhao Ting Jiang Yi Guo Chunhui Chen Qi Dong Institute of cognitive neuroscience and {2. state key Laboratory of cognitive neuroscience and {2. beijing normal university university of California Irvine

＜正＞With event-related potential technique, this study examined the temporal sequence and neural organization of number meaning processing during one-digit solution verification. Undergraduates were asked to solve one-digit comparison （Experiment 1） and subtraction （Experiment 2. problems and 1.5s later verify whether a visually-proposed one-digit solution was correct or not based on foregoing arithmetic processing. The incorrect solutions were further divided into long- and short-distance ones in the basis of numerical distance from

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Reference values for amplitude-integrated electroencephalogr...

The cessation and detoxification effect of tea filters on cigarette smoke

中国神经科学学会第九届全国学术会议暨第五次会员代表大会

作者： Dan-Dan ZHANG~(1,2.*),yun-Feng LIU~3,Da-Tian YE~2.yue-Jia LUO~1 1 {2. key Laboratory of cognitive neuroscience and learning,beijing normal university,beijing 100875,China 2.Department of Biomedical Engineering,Tsinghua university,beijing 100084,China 3 Department of Pediatrics,Peking university First Hospital,beijing 100034,China

＜正＞Objective Amplitude-integrated electroencephalogram（aEEG）is a valuable tool for the continuous evaluation of functional brain maturation in *** amplitudes of the upper and lower margins of aEEG are postulated to change with maturation and correlate with postmenstrual age（PMA）.This study aimed to establish reliable reference values of aEEG amplitudes,providing quantitative guidelines for assessing aEEG maturation in neonates and young *** normal infants（n=2.4）with PMAs that ranged from 30 to 55 weeks were divided into ten groups according to their *** 5-min segments were selected from each aEEG to calculate the upper/lower margin and bandwidths of the tracing *** Interobserver agreement was achieved with an overall correlation of *** upper and lower margins of aEEG in both active and quiet sleep clearly rose in infants beyond the neonatal *** bandwidth defined as the graphic distance decreased almost monotonically throughout the PMA range from 30 to 55 *** lower margin of aEEG was positively correlated with PMA, with a larger rank correlation coefficient during quiet sleep（r=0.89）than during active sleep（r=0.49）.Conclusion Reference values of aEEG amplitudes were obtained in infants with a wide range of PMA and constitute a basis for the quantitative assessment of aEEG maturation in neonates and young *** normative amplitudes of aEEG margins,especially of the lower margin in quiet sleep,are recommended as reference data for the identification of potentially abnormal aEEG.

关键词： amplitude integrated EEG infant reference values upper and lower margins

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Science China(Life Sciences) 2010年第5期53卷 533-541页

作者： YAN JingQi1,2.DI XiaoJing1,4,LIU CaiYi3,ZHANG HuiMin3,HUANG XiouQin3,ZHANG JunJing1,2.ZHAO Yan5,ZHANG LongZe1,CHANG YanZhong4,LIANG YongLin2.,TAO Ran3 & ZHAO BaoLu1,2. state key Laboratory of Brain and {2. Science,Institute of Biophysics,Chinese Academy of Sciences,beijing 100101,China 2.key Laboratory of Mental Health,Institute of Psychology,Chinese Academy of Sciences,beijing 100101,China 3 Addiction Branch,beijing Military Region General Hospital,beijing 100700,China 4 Institute of Molecular Neurobiology,Hebei normal university,Shijiazhuang 050016,China 5 Department of Food Sciences and Technology,Harbin Institute of Technology at Weihai,Weihai 2.42.9,China state key Laboratory of Brain and {2. Science Institute of Biophysics Chinese Academy of Sciences Beijing China key Laboratory of Mental Health Institute of Psychology Chinese Academy of Sciences Beijing China Institute of Molecular Neurobiology Hebei Normal University Shijiazhuang China Addiction Branch Beijing Military Region General Hospital Beijing China Department of Food Sciences and Technology Harbin Institute of Technology at Weihai Weihai China

To treat tobacco addiction,a tea filter was developed and studied for smoking *** work reports the smoking cessation effect of tea when it was used as a component of cigarette *** one trial it was found that after using the tea filters for 2.months,the volunteer smokers decreased their cigarette consumption by 56.5%,and 31.7% of them stopped *** work identified a new method and material,tea filter and theanine,which inhibit tobacco and nicotine addiction and provide an effective strategy for treating tobacco addiction.

关键词： cigarette smoking addiction cigarette cessation tea filter theanine nicotine dependence nicotine acetylcholine receptor(nAChR) dopamine public health free radical

返回抑制梯度效应的认知神经机制:来自ERP研究的证据

在线全文

学校读者我要写书评

暂无评论

心理科学 2010年第5期33卷 1074-1078页

作者：王丽丽邱江郭亚桥张庆林罗跃嘉西南大学心理学院重庆400715 北京师范大学认知神经科学与学习国家重点实验室北京100875

通过操纵线索和靶刺激的空间关系,采用事件相关电位(ERP)技术探讨返回抑制梯度效应的脑内时程动态变化。结果发现,线索化条件下,P1波幅减小。在175-2.5ms内,线索化与相邻均比相对条件诱发了一个更大的负成分(Nd2.0),而且当返回抑制量大... 详细信息

通过操纵线索和靶刺激的空间关系,采用事件相关电位(ERP)技术探讨返回抑制梯度效应的脑内时程动态变化。结果发现,线索化条件下,P1波幅减小。在175-2.5ms内,线索化与相邻均比相对条件诱发了一个更大的负成分(Nd2.0),而且当返回抑制量大(线索化位置)时,Nd2.0更大。差异波(线索化-相对)的地形图显示,该负成分主要在额中部脑区有明显激活。在2.0-300ms内,线索化比相对条件同样诱发了一个更大的负成分(Nd2.0),差异波(线索化-相对)的地形图显示,该负成分主要在右侧顶部脑区有明显激活。结果表明,返回抑制梯度效应可能是由线索化位置的抑制和注意方向的转换共同引起的。

关键词：返回抑制梯度效应事件相关电位

在线全文

学校读者我要写书评

暂无评论

说谎认知的发展性研究

心理科学 2009年第5期32卷 1174-1176页

作者：吴定诚马凤玲徐芬认知神经科学与学习国家重点实验室北京师范大学北京100875

说谎认知包括对说谎概念的理解和道德评价,是说谎研究中的主要内容。目前研究者对说谎认知的研究主要集中在原型理论及社会习俗模型两大领域。研究者普遍认为说谎认知具有情境特异性和文化特异性。本文从说谎认知与说谎行为的关系、说... 详细信息

说谎认知包括对说谎概念的理解和道德评价,是说谎研究中的主要内容。目前研究者对说谎认知的研究主要集中在原型理论及社会习俗模型两大领域。研究者普遍认为说谎认知具有情境特异性和文化特异性。本文从说谎认知与说谎行为的关系、说谎认知各成分之间的关系等角度分析了以往研究的不足。

关键词：说谎认知原型理论习俗模型情境特异性文化特异性