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101.
Most Chinese characters are composed of a semantic radical on the left and a phonetic radical on the right. The semantic radical provides the semantic information; the phonetic radical provides information concerning the pronunciation of the whole character. The pseudo‐characters in the study consisted of different sub‐lexical parts of real Chinese characters and consequently they also had the semantic radical and the phonetic radical. But they were not readable and had no actual meaning. In order to investigate the spatiotemporal cortical activation patterns underlying the orthographic, phonological and semantic processing of Chinese characters, we used event‐related brain potentials (ERPs) to explore the processing of Chinese characters and pseudo‐characters when 14 healthy Chinese college students viewed the characters passively. Results showed that both Chinese characters and pseudo‐characters elicited an evident negative potential peaking around 120 ms (N120), which appeared to reflect initial orthographic distinction and evaluation. Then, Chinese pseudo‐characters elicited a more positive ERP deflection (P220) than did Chinese characters 200–250 ms after onset of the stimuli. It was similar to the recognition potential (RP) and might reflect the integration processes of phonological and semantic processing on the basis of early orthographic information. Dipole source analysis of the difference wave (pseudo‐characters minus characters) indicated that a generator localized in the left temporal‐occipital junction contributed to this effect, which was possibly related to phonological and perceptual–semantic information integration. Between 350–450 ms, a greater negativity (N360) in pseudo‐characters as compared to characters was found over midline fronto‐central scalp regions. Dipole analysis localized the generator of N360 in the right parahippocampal cortex. Therefore, the N360 might be an N400 component and reflect the higher‐level semantic activation on the basis of orthographic, phonological and perceptual–semantic processing. 相似文献
102.
A dominant theme in modeling human perceptual judgments is that sensory neural activity is summed or integrated until a critical bound is reached. Such models predict that, in general, the shape of response time distributions change across conditions, although in practice, this shape change may be subtle. An alternative view is that response time distributions are shape invariant across conditions or groups. Shape invariance is predicted by some race models in which the first of several parallel fibers to communicate the signal determines the response. We competitively assess a specific gradual growth model, the one-bound diffusion model, against a natural shape-invariant competitor: shape invariance in an inverse Gaussian distribution. Assessment of subtle shape change versus shape invariance of response time distributions is aided by a Bayesian approach that allows the pooling of information across multiple participants. We find, conditional on reasonable distributional assumptions, subtle shape changes in response time that are highly concordant with a simple diffusion gradual growth model and discordant with shape invariance. 相似文献
103.
104.
Thing, Value, Time, and Freedom: A Consideration of Some Key Concepts in Marx’s Philosophical System
Wujin Yu 《Frontiers of Philosophy in China》2006,1(1):114-123
Criticizing the misunderstanding and wrong explanation of Marx’s philosophical system made by recent Chinese textbooks on
Marxist philosophy, the author argues that Marx’s philosophy has practical, economical-philosophical, and ontological dimensions
and stresses on reconstructing Marx’s philosophical system through synthesizing the above three dimensions. This paper intends
to set up a new outline of Marx’s philosophical system, in terms of the following four concepts—thing, value, time, and freedom.
Translated by Tang Jie from Zhexue Yanjiu, 2004:11 相似文献
105.
神经性厌食症和神经性贪食症是主要的进食障碍症状。进食障碍的影响因素有社会文化因素(例如媒体和同伴的影响)、家庭因素(如困惑和冲突)、消极情绪、低自尊水平和对自身的不满及认知和生物方面的因素等。 相似文献
106.
基于胜任特征的结构化面试初探 总被引:2,自引:0,他引:2
基于胜任特征的结构化面试是对传统结构化面试的优化,有很高的信度和效度。本文从基于胜任特征的结构化面试的内涵、特点、程序以及实施过程中需要注意的问题几个方面进行了深入探讨,对于改善结构化面试的测评功能和深化胜任特征的应用有一定价值。 相似文献
107.
108.
急性心肌梗死(AMI)患者的治疗关键在于早期诊断和及时开通闭塞的冠状动脉,患者在发病后能否及早到院接受再灌注治疗,对患者的治疗效果和预后有重要影响.院前延误时间(PDT)即为从患者出现症状至到达医院接受治疗的时间.AMI患者就医大多是延迟的,主要原因是患者不能决定自己的症状是否需要治疗,也就是患者决定就医时间延长.本研究目的是分析造成急性心肌梗死患者院前延误的相关影响因素,为患者赢得最佳治疗时间提供理论依据. 相似文献
109.
110.
Yi-Ming Yu 《Ethics & behavior》2013,23(5):341-359
In this study, I examined what channels of socialization influence the moral behavior of cadets. We conducted a regression analysis of the effects of parents' attitudes to moral education, the standard and potential curriculum of schools, peer groups, and communication media on individual ethics and discipline using 399 sample participants. The participants were recruited through a questionnaire survey on cadets from academy of military, naval, and air force, and four-year based students from R.O.C. National Defense University. The analysis results showed that the cultivation of morality among cadets was directly influenced by the school's potential curriculum (i.e., intern cadres and officers in company) and their parents' attitudes to moral education during early childhood. The results also indicated that the influence of teaching by example was more significant than that of teaching by precept. 相似文献