自然物体分类的ERP研究

对事物进行分类的能力是人类的一种基本认知功能。该文主要就近年来自然物体分类的事件相关电位（ERP）研究情况进行综述。首先介绍与自然物体分类有关的ERP早晚期成分;接着讨论了快速视觉分类的加工机制,认为前馈机制在这种复杂分类任务的视觉加工过程中起重要作用;最后详细介绍了两个分离的视觉加工机制,认为自然物体的视觉分类在不同时程涉及不同机制：即首先是任务无关的早期知觉加工过程,其次是任务相关的、类别无关的加工机制,与被试的决策有关。也讨论了这两个分离的加工过程涉及的神经基础。     

项目反应理论多级记分模型参数估计的实现

项目反应理论中参数估计程序的实现,一直是研究现代测量理论的学者们关注的问题。该研究从理论上探讨了多级模型参数估计的实现途径,并模拟了5批不同数量及分布情形的项目及被试参数,生成相应的原始得分矩阵,对自编程序及国际流行的相关程序进行了严格的比较校验,验证结果证明本程序具有精确、稳定的性能,并且发现被试量太少将影响参数估计的精确性及稳定性     

简评记忆脑机制研究中的两场辩论及代表假说

(艾宾浩斯)记忆实验心理学研究整整一个世纪了。本文简溯并试评记忆脑机制研究的简史,特别是本世纪内的两场学术辩论及代表假说。     

选择性注意的ERP研究方法

注意理论的基本问题中,关于注意过滤器的位置,存在着早期与晚期选择的长期争论;关于自动加工与控制性加工,其机制与相互作用也有待明确。采用相同感觉通路的双耳分听和跨通路等实验范式,使ERP作为注意的客观电生理指标成为可能。但此类研究,涉及注意与非注意、听觉通路与视觉通路、标准刺激与偏差刺激等复杂的实验条件,并利用不同状态之间的相减技术以及由此而来的波幅测量问题.在当前国际上许多主要的ERP实验室均未能很好解决,尚处于摸索阶段。本文针对上述问题作一介绍,以供同行参考。1实验范式——刺激的设置1.1通路内的选择…     

Correlates of coping behaviours: Internal and external resources

This study examined some possible factors that were expected to influence choices of coping strategies. They were demographic variables (age, sex, marital status, education, and family income), personality traits (extroversion, neuroticism and locus of control), perceived life stress, and received social support. Five hundred and eighty one randomly selected community adults living in Kaohsiung city were interviewed and completed questionnaires measuring the above variables. Multivariate analyses had shown that: (a) higher income and education were related to more use of ‘Seeking social resources’ and ‘Planning & hoping’ coping; (b) higher extroversion was related to more use of ‘Seeking social resources’, ‘Planning & hoping’ and ‘Emotional suppression’ coping, whereas the last was also related to higher neuroticism; (c) people with higher internal locus of control favoured ‘Planning & hoping’, but not ‘Emotional suppression’ coping; (d) perceived life stress was not related to any use of coping behaviours; however, (e) more social support was related to more use of all kinds of coping behaviours. Implications of results were discussed in the context of stress and adaptation.     

生理心理学三十年

本文对我国生理心理学研究的三十年作了阶段性的历史回顾。并讨论了若干主要收获、经验教训及一点展望。     

基因芯片技术的出现及对生命科学发展的影响

对于复杂的生命系统,基因芯片技术以一种综合、全面、系统的观点来研究生命现象,打破了以往“一种疾病一个基因”的研究模式,它充分利用了生命科学、信息学等当今带头科学的成果,已成为后基因组时代生命科学研究强有力的工具。随着基因芯片技术的出现, 白质芯片等类似新技术也相继发明,生命科学研究的思维方式正经历一场深刻的改革,同时加速了生物信息、基因工业时代的到来。     

FOK的线索熟悉性假说与线索熟悉性判断

这项研究对ＦＯＫ的线索熟悉性假说进行了进一步检验,该假说认为,人们是根据自已对记忆线索是否熟悉而作ＦＯＫ判断的,研究结果表明,线索熟悉性判断与ＦＯＫ判断是两种不同性质的判断,它们可以在相同的刺激模式下表现出不同的反应模式。     

Effects of semantic discrimination of Chinese words on N400 component of event-related potentials.

20 subjects' event-related brain potentials were measured during a lexical decision task in which Chinese characters were used in both conditions of related (antonym) and unrelated words. Analysis indicated that the mean reaction time for unrelated words was 130 msec. longer than that elicited by related words. The condition of unrelated words elicited a significant N450, and an obvious P500 was evoked by related words at each of the 17 recording sites. Furthermore, the amplitudes of N210 and N450 were larger in the left hemisphere than in the right hemisphere but the amplitude of P500 was larger in the right hemisphere than in the left hemisphere.