中国传统思维方式的转换历程

思维形式是深藏于民族文化底层的、具有相对稳定性、并对人们的行为方式起支配作用的文化现象。文化的差异,却又使思维形式存在着一定的相对独立性和相对稳定性。笔者认为,探讨中国传统思维方式,是进一步理解中国传统文化及其如何融入当代社会的关键一环。更重要的是,在对传统文化的扬弃过程中,中国传统思维方式的转换起着至关重要的作用。     

句法加工的ERP研究综述

句法加工是语言理解中的重要环节。句法加工的脑机制问题是心理语言学和认知神经科学的重要研究内容。使用事件相关电位(ERP)技术对句法加工的脑机制的研究已经取得了一些重要的研究成果,发现了句法加工的早成分(LAN)和晚成分(P600/SPS),确立了一些句法加工的研究范式。在这个过程中,也还有一些问题存在争论。该文将对句法加工的ERP研究的成果和问题分别进行介绍和讨论。     

Morphological changes in dendritic spines of Purkinje cells associated with motor learning

Experience-dependent changes of spine structure and number may contribute to long-term memory storage. Although several studies demonstrated structural spine plasticity following associative learning, there is limited evidence associating motor learning with alteration of spine morphology. Here, we investigated this issue in the cerebellar Purkinje cells using high voltage electron microscopy (HVEM). Adult rats were trained in an obstacle course, demanding significant motor coordination to complete. Control animals either traversed an obstacle-free runway or remained sedentary. Quantitative analysis of spine morphology showed that the density and length of dendritic spines along the distal dendrites of Purkinje cells were significantly increased in the rats that learned complex motor skills compared to active or inactive controls. Classification of spines into shape categories indicated that the increased spine density and length after motor learning was mainly attributable to an increase in thin spines. These findings suggest that motor learning induces structural spine plasticity in the cerebellar Purkinje neurons, which may play a crucial role in acquiring complex motor skills.     

Virtual environment training system for rehabilitation of stroke patients with unilateral neglect: crossing the virtual street.

In this paper, we propose a system for training of stroke patients with unilateral neglect by using technology of virtual reality (VR). The proposed system is designed to compensate for unilateral neglect. This system contains the calibration of unilateral neglect and the training of this disease. The calibration procedure is implemented by aligning the virtual object at a subjective middle line. The training procedure is implemented by completing the missions that are used to keep the virtual avatar safe during crossing the street in a virtual environment. The results of this study show that the proposed system is effective to train unilateral neglect. The left to right ratio scores extracted from this system gradually decrease as the sessions of training are repeated. To validate the VR system parameters, the parameters are analyzed by correlation with those of traditional unilateral neglect assessment methods (such as the line bisection test and the cancellation test).     

场依存—独立认知方式干扰抑制的比较

采用镶嵌图形测验筛选出28名被试完成Stroop干扰任务,探讨场依存—独立认知方式的个体在信息加工过程中对无关信息干扰抑制机制的特点和差异。结果表明：（1）场独立者在认知加工中具有较场依存者更强的对无关信息干扰的抑制效能。（2）在Stroop任务中,对字色也存在自动化加工,只是自动化程度较低。     

FOK判断与可接近信息之间的关系

通过三个实验,用语义联想集大小不同的中文单字词研究了靶项目联想集的大小与FOK判断等级和准确性的关系。实验一通过两种不同联想集大小的靶子,比较外显的、提取出的信息和内隐的、语义网络中固有的被激活信息量对FOK判断等级和FOK判断准确性是否有不同的影响。实验二和实验三通过不同的靶子呈现时间和学习遍数,比较不同的识记强度对不同大小联想集的靶子的FOK判断等级和FOK判断准确性的影响。实验结果表明：FOK判断等级随外显的、提取出的信息总量的增多而增高,随内隐的、语义网络中固有的被激活信息量的增多而降低。FOK判断准确性随靶子本身的激活强度的增强而增高,随内隐的、语义网络中固有的被激活信息的激活强度的增强而降低,FOK判断准确性取决于这两种激活强度的综合作用。     

支持性条件对记忆年龄差异的影响

通过三个实验探讨支持性条件对记忆年龄差异的影响。结果表明,在操作条件下记忆高语义关联度项目时,有缩小记忆年龄差异的作用,(实验一);线索回忆时,对于低语义关联度项目,青年人可从名词线索中获得更多支持(实验二);当使用具范畴组织关系的词表作为记忆材料时,操作条件和范畴线索的结合对老年人记忆有干扰作用(实验三)。记忆中年龄差异的变化反映了编码条件、记忆材料和提取条件三方面的综合作用。     

句子语境中汉语词汇歧义消解的眼动研究

采用眼动方法.通过两个实验考察了汉语同音同形歧义词的歧义消解过程.结果显示:(1)在中性句子语境中,均衡歧义词的首视时间显著高于偏向歧义词.歧义词的意义通达仅受歧义词意义的相对频率影响,不受语境的影响;(2)在偏向句子语境中,当语境支持歧义词的次要意义时,被试对偏向歧义词的解歧信息的注视时间显著高于其他两类目标词,体现了语境对歧义词意义的整合作用.实验结果支持词汇歧义消解的模块化模型的观点.     

Cultural Differences in the Self: From Philosophy to Psychology and Neuroscience

Different thinking styles in Westerners and Chinese (analytic vs. holistic) lead to disparities between the two cultures not only in perception and attention but also in high‐level social cognition such as self‐representation. Most Western philosophers discussed the self by focusing on personal self‐identity, whereas Chinese philosophers emphasized the relation between the self and others. Dissimilar philosophical thinking of the self is associated with distinct cognitive styles of self‐representation (i.e., the independent self in Westerners and the interdependent self in Chinese). Recent brain imaging studies found that Westerners employed the medial prefrontal cortex to represent only the individual self, whereas Chinese utilized the same brain area to represent both the self and close others, providing neural basis of cultural differences in self‐representation. We suggest that the cultural differences in thinking styles between Westerners and Chinese influence both psychological and neural structure of self‐representation.     

民主的概念

The core elements of modern democracy are citizens who share equally in mutually-compatible basic rights, serve as the final decision-makers on the community’s constitution, and choose whom to be entrusted with legislative and executive powers, while at the same time wielding final veto power over the present government. The rule of the majority in modern democracy is no longer a fundamental principle, but rather a derivative principle the validity of which is based on the above-mentioned core elements. Translated by Hu Jinglei from Tianjin Shehui Kexue 天津社会科学 (Tianjin Social Sciences), 2007, (5): 7–12