读写分离的脑神经机制：来自fMRI的证据

使用只读不写的繁体字和会读会写的简体字材料, 以默读为实验任务, 探讨“会读会写”与“只读不写”文字的加工脑区。8名在校大学生在磁共振扫描过程中默读呈现的繁体字或简体字, 采用ANOVA统计全脑激活图。与简体字相比, 繁体字额外激活了右额下回、左小脑。在功能连接性上, 简体字和繁体字相同的激活脑区有左楔前叶-左内侧前额叶, 左楔前叶-左中央前回, 右枕中回-左舌回; 不同的是, 繁体字左楔前叶与右额下回有高相关, 而简体字左楔前叶与右额中回有高相关。左内侧前额叶与中央前回只在繁体字中表现出高相关。繁体字和简体字任务的T检验差异脑区包括左颞中回和右顶下小叶。只读不写的文字具有加工的整体性和轮廓性特征, 它的读音与不规则简体字相似, 具有整字加工特点。繁体字和简体字加工具有相同的功能连接区, 但也存在差异。右脑表现为连接脑区不同, 左脑内侧前额叶与中央前回表现为相关性不同, 说明内侧前额叶-中央前回在繁体字加工中起着重要作用。实验结果还证明顶叶是记忆再认的主要脑区。     

书写对阅读的影响——来自传统书写与电脑打字的证据

书写和阅读是在文字的基础上发展起来的, 二者存在共享的神经网络。书写能影响阅读, 阅读不仅依靠视觉加工, 还依赖书写运动表征。不同书写方式对阅读的影响不同, 传统书写对阅读有促进作用, 电脑打字对阅读产生了一定的消极影响。对汉字来说, 传统书写能加强汉字的正字法表征, 促进汉字阅读; 电脑打字对汉字阅读的影响尚无一致结论。未来研究可以考察传统书写与电脑打字神经机制的差异, 以及电脑打字对汉字认知加工的影响及神经机制。     

副中央凹中字N+2的预视对汉语阅读眼跳目标选择影响的眼动研究

采用边界范式, 在副中央凹呈现一个双字词或两个单字词, 操纵字N+2的预视(目标预视和假字预视), 来考察副中央凹中词汇特征是否影响读者随后的眼跳长度及注视位置。结果发现, 读者能够获得字N+2的预视; 双字词与两个单字词条件下注视位置没有显著地差异; 当副中央凹中为双字词时, 字N+2为目标预视时随后的眼跳长度显著地长于假字预视条件, 随后的注视位置距离词首更远; 当副中央凹中为两个单字词时, 两种预视条件下随后的眼跳长度及注视位置没有显著的差异。本研究结果提示：在汉语阅读中, 读者能够对字N+2进行预视加工, 这种加工的影响只发生在当副中央凹中为双字词时。     

Not All Visual Expertise Is Holistic, but It May Be Leftist: The Case of Chinese Character Recognition

ABSTRACT— We examined whether two purportedly face-specific effects, holistic processing and the left-side bias, can also be observed in expert-level processing of Chinese characters, which are logographic and share many properties with faces. Non-Chinese readers (novices) perceived these characters more holistically than Chinese readers (experts). Chinese readers had a better awareness of the components of characters, which were not clearly separable to novices. This finding suggests that holistic processing is not a marker of general visual expertise; rather, holistic processing depends on the features of the stimuli and the tasks typically performed on them. In contrast, results for the left-side bias were similar to those obtained in studies of face perception. Chinese readers exhibited a left-side bias in the perception of mirror-symmetric characters, whereas novices did not; this effect was also reflected in eye fixations. Thus, the left-side bias may be a marker of visual expertise.     

汉字笔画数对注视位置效应的影响

采用EyeLink 2000眼动仪,选取四种不同类型的双字词（首字和尾字均为多笔画汉字;首字为多笔画汉字,尾字为少笔画汉字;首字为少笔画汉字,尾字为多笔画汉字;首字和尾字均为少笔画汉字）,要求被试阅读包含有目标词的句子,以探讨汉字笔画数对注视位置效应的影响。结果发现,单次注视条件下,读者往往将首次注视定位于词的中心位置,多次注视时首次注视往往落在词的开头部分;但是当首字为多笔画汉字时,相较于首字为少笔画汉字,读者对目标词的首次注视更多地落在词的首字上。首字和尾字笔画数共同影响读者对目标词的再注视概率。研究结果支持“战略-战术”模型。     

学生快速阅读过程的信息加工实质的研究

本研究主要探讨学生快速阅读过程的信息加工活动的实质。根据快速阅读理解测验成绩选出小学六年级优生、中等生、差生各 3 0名 ,共 90名 ,随机分成两个等组。首先对两个组的被试进行阅读预期测验 ,测定他们根据文章的部分信息预期文章基本内容的水平 ;第二步进行阅读找错测验 ,要求实验组快速阅读而对照组以平常速度阅读一篇有若干明显错字的文章 ,然后要求他们在作业卷上标出这些错字。研究结果表明 ,学生的快速阅读水平越高 ,他们对阅读材料的预期成绩也就越高 ;同时 ,被试在快速阅读的情况下发现文章中错字的数量要比正常阅读的情况下要少。据此初步认为 ,学生快速阅读文章的过程 ,是一种更多地利用概念推动 ,较少地需要材料信息的“预期—证实”的信息加工过程。     

聋人副中央凹字N+1预视效益的眼动研究

聋人听觉受损后,在低水平的视觉认知任务中,表现出副中央凹注意增强效应。这种增强效应是否也会发生在高水平的汉语认知加工任务中？本研究采用边界范式,探究副中央凹注意增强效应对聋人读者合体字N+1预视效益的影响。研究发现,高技能聋人读者,可以获得合体字N+1语音和语义预视效益。研究表明,副中央凹注意增强促进了高技能聋人读者N+1预视信息的获得。     

动态视觉加工与儿童汉字阅读

使用视觉阈限测验、图片命名、字形相似性判断实验和语音意识等测验 ,考察了小学五年级儿童视觉加工技能与汉字阅读之间的关系。结果发现 :动态视觉加工与图片命名错误率、字形判断反应时和错误率、语音意识均有显著相关 ,静态视觉加工只与图片命名错误率相关显著 ;控制识字量后的偏相关分析显示 ,动态视觉加工与其他变量的相关关系不变 ,静态视觉加工与图片命名错误率的相关不再显著 ;回归分析发现动态视觉加工在识字量和语音意识的影响控制后 ,能够分别解释阅读流畅性、字形判断反应时和图片命名错误率 7%、2 5 %和 5 6 %的变化 ;语音意识能够解释识字量和阅读流畅性 9%和 10 %的变化 ;对差读者的动态视觉加工和语音意识分析发现 ,儿童在这两种测验上的个体差异很大。上述结果表明 ,阅读过程受基本知觉技能影响 ,动态视觉加工作用于汉字阅读的特定过程。     

中文发展性阅读障碍研究

本文总结了作者有关中文发展性阅读障碍的部分研究成果,探讨了阅读困难儿童词汇加工的特征及其本质,讨论了中文阅读技能与其他认知加工,特别是基本视知觉的关系.文章指出阅读障碍儿童由于词汇识别水平低,他们在汉字识别过程中表现出比同年龄的控制组更大的规则性效应,在语义通达过程中,对语音的依赖较大.阅读障碍儿童不仅在汉字的命名速度上慢于控制组儿童,数字的语音通达速度也慢于控制组儿童.文章还总结了汉字阅读与视知觉的关系,发现视觉加工对字形相似性判断有较大的解释作用.     

听障者语音编码的研究范式述评

对于健听者而言,语音编码在阅读中具有重要作用。听障者在阅读中是否存在语音编码？对于拼音文字而言,这个问题目前国际上存在很大的争议。中国听障者在阅读中是否使用了语音编码也逐渐开始受到重视。为了给国内研究听障者语音编码的学者提供参考,本文介绍了考察听障者语音编码研究中常用的研究范式,包括实验程序、逻辑及相应的研究成果。最后,对今后我国听障者语音编码的研究进行了展望。     

The use of probabilistic lexicality cues for word segmentation in Chinese reading

In an eye-tracking experiment we examined whether Chinese readers were sensitive to information concerning how often a Chinese character appears as a single-character word versus the first character in a two-character word, and whether readers use this information to segment words and adjust the amount of parafoveal processing of subsequent characters during reading. Participants read sentences containing a two-character target word with its first character more or less likely to be a single-character word. The boundary paradigm was used. The boundary appeared between the first character and the second character of the target word, and we manipulated whether readers saw an identity or a pseudocharacter preview of the second character of the target. Linear mixed-effects models revealed reduced preview benefit from the second character when the first character was more likely to be a single-character word. This suggests that Chinese readers use probabilistic combinatorial information about the likelihood of a Chinese character being single-character word or a two-character word online to modulate the extent of parafoveal processing.     

Chinese-English biliteracy acquisition: cross-language and writing system transfer

This study investigated cross-language and writing system relationship in biliteracy acquisition of children learning to read two different writing systems-Chinese and English. Forty-six Mandarin-speaking children were tested for their first language (Chinese-L1) and second language (English-L2) reading skills. Comparable experiments in Chinese and English were designed focusing on two reading processes-phonological and orthographic processing. Word reading skills in both writing systems were tested. Results revealed that Chinese onset matching skill was significantly correlated with English onset and rime matching skills. Pinyin, an alphabetic phonetic system used to assist children in learning to read Chinese characters, was highly correlated with English pseudoword reading. Furthermore, Chinese tone processing skill contributed a moderate but significant amount of variance in predicting English pseudoword reading even when English phonemic-level processing skill was taken into consideration. Orthographic processing skill in the two writing systems, on the other hand, did not predict each other's word reading. These findings suggest that bilingual reading acquisition is a joint function of shared phonological processes and orthographic specific skills.     

镜像呈现方式对青年人和老年人汉语阅读过程的影响:眼动研究

拼音文字文本阅读研究发现,同青年人相比,老年人在阅读过程中有更多的跳读发生、向前眼跳幅度更长、回视次数更多。基于这些研究结果,研究者提出了老年人阅读的“风险阅读”策略。为探究在中文阅读过程中老年人的加工特点以及与拼音文字阅读的策略异同,实验采用镜像和正常两种方式呈现文本进行了考察。结果发现,在中文阅读过程中,相较于青年人,老年人的跳读率更低,向前眼跳幅度更小,采用的是一种更为谨慎的阅读策略。在镜像呈现的条件下,老年人与青年人之间的跳读率没有显著差异,在正常呈现的条件下,老年人的跳读率显著低于青年,表明在汉语阅读中老年人采取更加谨慎的阅读策略与其副中央凹加工能力下降,以及汉语与拼音文字两种不同书写系统的基本属性有关。     

中文阅读中快速读者与慢速读者的词频效应

在熟练的中文阅读中,个体阅读效率越高,词汇加工效率是否越高,目前还缺少直接证据。本研究通过记录快速读者与慢速读者在阅读含有高频或低频目标词句子时的眼动轨迹来考察该问题。结果发现,在第一遍注视时间、回视路径时间和总注视时间上,快速读者对高频词与低频词的注视时间无显著差异,但都短于慢速读者;而慢速读者对低频词的注视时间显著长于高频词。即快速读者的早期词汇识别和后期词汇整合效率都较高,不受词频影响;而慢速读者的整个词汇加工效率较低,受词频影响较大。这些结果表明两组读者的词汇加工模式具有本质差异,符合个体差异性观点与词汇质量假说。     

汉语“主观词”的表征及其加工

本文提出了"主观词"的概念,并探讨主观词存在的心理现实性以及主观词的加工特征。包括3项研究:研究1考察了普通大学生对双字结构的词汇辨别情况,发现他们倾向于将短语和词主观判断为词,即他们按照个体对词的独特表征认知词,证实了主观词存在的心理现实性。研究2和研究3分别采用"词优效应"研究中使用的强迫选择作业和词汇判断任务考察主观词加工的特征。研究2发现,读者加工词和主观词(语法上是短语但主观评定为词)的正确率和反应时没有差异,但与非词条件相比,表现为正确率高,反应时短;研究3的反应时结果同研究2,而3种条件的正确率均在90%以上且不存在显著差异。在本研究条件下,得出以下结论:(1)主观词的存在具有心理现实性:读者对汉语词语的表征是主观的,不一定符合词的语法学规定;(2)在强迫选择作业下,与非词相比,表现出词优效应,主观词作为整体被识别。(3)在词汇判断任务下,主观词与词相同,与非词相比,表现出加工优势。     

Does interword spacing influence lexical processing in Chinese reading?

This study investigated how inserting spaces between Chinese words affected word recognition in Chinese reading. Eye movements of Chinese readers were recorded in a sentence reading task where high- and low-frequency target words were presented in both the spaced and normally unspaced texts. We found that fixation durations on target words were shorter in the high- than low-frequency conditions, and shorter in the spaced than unspaced conditions. The survival analysis revealed that interword spacing advanced the temporal onset of word frequency effects relative to the normally unspaced condition. However, inconsistent with the findings in English reading, there was no interaction between word frequency and interword spacing on all fixation duration measures, and the Bayes factor analyses also favoured the hypothesis of null interaction. These data suggest that interword spacing facilitates visual rather than lexical processing in Chinese reading, and thus improves our understanding on the roles of interword spacing across different writing systems.     

Role of structure and component in judgments of visual similarity of Chinese characters

Skilled readers of Chinese participated in sorting and visual search experiments. The sorting results showed that under conditions of conflicting information about structure and component, subjective judgments of the visual similarity among characters were based on the characters' overall configurations (i.e., structures) rather than on the common components the characters possessed. In visual search, both structure and component contributed to the visual similarity reflected by the search efficiency. The steepest search slopes (thus the most similar target-distractor pairs) were found when the target and the distractor characters had the same structure and shared 1 common component, compared with when they had different structures and/or shared no common components. Results demonstrated that character structure plays a greater role in the visual similarity of Chinese characters than has been considered.     

汉字笔画像素数省略对中文句子阅读影响的眼动研究

在前人笔画省略实验的基础上,采用“像素省略”这一更精确的变量操纵来探讨笔画省略对汉字识别的影响。实验采用2（像素省略方式：省前、略后）×3（像素省略水平：15%、30%、50%）被试内设计,分析整句阅读的眼动轨迹。结果显示,像素省略水平越高对阅读的干扰越大,省前条件下对阅读的干扰显著大于略后条件。结果进一步证实了汉字书写顺序对汉字识别的影响,先书写的笔画比后书写的笔画对汉字的识别起到更大的作用,即笔画顺序效应。     

视觉加工速度、瞬间信息整合特征与汉语学习困难

采用因素实验设计,通过与正常学生与听力损伤学生对比实验研究,探讨汉语学习困难学生视觉加工速度和视觉瞬间信息整合的特征。结果表明:(1)汉语学习困难学生存在基本视觉加工速度不足以及汉语语言文字视觉加工的特异性困难;(2)汉语学习困难学生需要更长时间整合瞬间视觉信息,从而影响了其加工的速度;(3)适当延长视觉刺激整合的时间,可以有效提高其视觉加工的效率。这些结果对改善学生的汉语学习困难具有一定的指导意义。