汉语阅读障碍高危儿童的早期筛选

通过对309名平均年龄为3岁半的儿童(35～49个月)进行词汇、语素识别、句法、非词重复和看图说词5个任务的测试,探索了汉语阅读障碍高危儿童的早期筛选方法。结果显示高危儿童在所有任务上都显著落后于正常儿童;句法缺陷和语音缺陷所占比例最大;高危儿童存在的缺陷数量越多,则测验成绩越差。这一结果对汉语阅读障碍高危儿童的早期干预具有一定的理论和实践意义。     

盆底结构MRI研究进展及思考

盆底结构精细复杂,传统的解剖学以尸检为依据,现代影像学则提供了活体观察功能形态的有效方法.盆底结构核磁共振成像研究的新进展,体现了医学技术创新的稳健性、后发性、综合性,其发展取决于现代科学技术的进步.因此影像医学工作者作为医学科技主体,只有具备综合型知识结构,才能更好地进行医学技术创新.     

动、名词词类特异性损伤的研究现状

词汇的各类知识信息（如,语法信息）在人脑中的表征和加工方式是当前学者们研究的热点之一,以患者为研究对象已成为了其中一种重要的研究手段。期间,人们发现脑损伤使得一些患者对动词或名词表现出选择性认知加工障碍,即出现了动、名词词类特异性损伤。通过探讨这一现象发生的机理,将为揭示词类的语法信息在人脑中的表征和加工方式提供了契机。文章介绍了这一现象的表现形式,即一些脑损伤患者对有关动词的知识比有关名词的知识丧失得更严重,而有些患者的损伤模式却与其恰好相反。另外,文中也阐述了对该现象的3种理论解释：语法解释、语义－概念解释和词典解释。     

解脲支原体与不孕不育关系研究的思考

解脲支原体(Uu)感染与不孕不育的关系越来越受到人们的重视,对二者关系的研究,是不断深化发展的过程.Uu能引起输卵管性不孕,且与抗精子抗体产生有关;通过破坏精子形态和功能、降低精子密度或免疫机制致男性不育.提示对于不孕不育患者要应用新技术分型定量检测Uu,严格在循证医学指导下实现个体化综合治疗.     

先天性心脏病临床决策中的几个问题

医学知识是以前的医学家在治病救人的过程中,不断地积累经验,逐渐形成的有条理的治疗疾病的方法.哲学的辩证思维为临床医学提供了一般方法论.本文介绍了在先天性心脏病诊断治疗的临床决策中应用辩证思维的体会,以便于提高诊治水平,既抓住疾病的一般规律,又不要忘记疾病的特殊性.     

Predictors of timed picture naming in Chinese

We report normative data collected from Mainland Chinese speakers for 232 objects taken from Snodgrass and Vanderwart (1980). These data include adult ratings of concept familiarity, age of acquisition (AoA), printedword frequency, and word length (in syllables), as well as measures of rated visual complexity, image agreement, and name agreement. We then examined timed picture naming of these objects with native Chinese speakers in Beijing in two experiments using line drawings and colored pictures. In both experiments, the variables name agreement, rated concept familiarity, and AoA made significant independent contributions to naming latency in multiple regression analyses. We observed a correlation ofr=.85 between naming latency with line drawings and colored pictures and a reduced effect of image agreement on naming when colored pictures were presented. We discuss the implications of our findings for the study of lexical processing in Chinese. Normative data for 232 Chinese nouns may be downloaded from www.psychonomic.org/archive     

Word naming and psycholinguistic norms: Chinese

In this article, we present normative data for 2,423 Chinese single-character words. For each word, we report values for the following 15 variables: word frequency, cumulative frequency, homophone density, phonological frequency, age of learning, age of acquisition, number of word formations, number of meanings, number of components, number of strokes, familiarity, concreteness, imageability, regularity, and initial phoneme. To validate the norms, we collected word-naming latencies. Factor analysis and multiple regression analysis show that naming latencies of Chinese single-character words are predicted by frequency, semantics, visual features, and consistency, but not by phonology. These analyses show distinct patterns in word naming between Chinese and alphabetic languages and demonstrate the utility of normative data in the study of nonalphabetic orthographic processing.     

中英文对偶词呈现的空间位置对词义记忆的影响

采用即时记忆和延迟记忆任务,考察了双语信息加工对偶词呈现的空间位置对词义记忆的影响,结果表明：（1）对偶词呈现的空间位置对词义记忆存在影响,且这种影响只出现在延迟记忆中;（2）在延迟记忆任务中,变换词对呈现的空间位置,对对偶词记忆的效果要显著地优于固定空间位置条件;（3）对偶词的呈现背景不同对词对记忆没有影响。     

Chinese writing system and learning to read

One of the obvious characteristics of the Chinese writing system is its visual complexity. How do children develop their reading and writing ability in such a system? The areas we address in the present study include: (1) The basic unit in character recognition and writing of Chinese children. (2) The role of familiarity of components and the position frequency of components in character recognition and writing. In the first experiment, the subjects were first‐, second‐, fourth‐, and sixth‐graders. Children were asked to delay copy five types of characters: familiar single characters, familiar compound characters, unfamiliar compounds with familiar components, unfamiliar compounds with unfamiliar components, and noncharacters, with the components in impossible positions. The results show that older children were affected more by the familiarity and the position frequency of components in the delayed copy task. In the second experiment, the subjects were from the same grades. Children were asked to carry out lexical decision for five types of characters: real compound characters, pseudocharacters with well‐formed structure and real components, noncharacters with ill‐formed structure but real components, and noncharacters with well‐formed structure but nonreal components. The results show that children can be aware of the ill‐formed structure early, and become aware of well‐formed structure but nonreal components as they grow older. The results suggest that the component of character is the basic unit in children's lexical representation. Familiarity of components and the position frequency of components in characters affect children's character recognition and writing.     

童年期虐待对网络成瘾的影响:有调节的中介效应

本研究基于有限自制力理论考察童年期虐待对网络成瘾的影响及其作用机制。以1162名大学生为被试,采用童年期虐待量表、自我控制量表、感恩量表和网络成瘾量表进行测试,结果发现：（1）童年期虐待和自我控制、感恩呈显著负相关,与网络成瘾成显著正相关;自我控制与感恩呈显著正相关,与网络成瘾呈显著负相关;感恩与网络成瘾呈显著负相关。（2）自我控制在童年期虐待和网络成瘾之间起中介作用。（3）“童年期虐待→自我控制→网络成瘾”这一中介路径的前半段受到感恩的调节;与高感恩个体相比,童年期虐待对低感恩个体的自我控制的影响更小。感恩不仅不能缓冲童年期虐待对自我控制的负面影响,反而会增强这一过程,提示我们注意积极特质在特定情境下的消极作用。