Presurgical Language Mapping

ABSTRACT— Neurosurgical procedures for tumors or intractable epilepsy are often accompanied by risk to postoperative cognitive function; surgery in the left temporal or frontal lobes, for example, can place language functions at risk. Hence, prior to tissue extraction, one common surgical goal is to attempt to identify frontal and temporal regions that should be spared in order to preserve language function. We describe how basic research on false memory for word lists has led to a novel approach for identifying such language-related regions in healthy controls. That is, rapid presentation of semantically related words (e.g., bed , rest , awake ) and phonologically related words (e.g., peep , weep , heap ) with instructions to attend to relations among the words elicits activity in underlying language networks. Furthermore, it is often possible to identify the neural underpinnings of these networks in an individual person in about an hour of functional magnetic resonance imaging (fMRI) scanning. We conclude by suggesting directions for future research with this lexical-processing protocol, the overarching goal being to link basic cognitive science and clinical practice.     

3～6岁儿童绘画故事能力的发展

以绘画故事作为实验任务,对儿童绘画语义表达能力的发展进行探讨。研究对象为3～6岁儿童,按年龄分为3组。研究结果表明:儿童绘画故事能力的发展是一个从零散到整合,从无序到有序的过程。4～5岁是儿童绘画故事发展过程中的重要转折时期。故事的结构水平对儿童绘画故事有影响。     

语义距离半球效应的ERP研究

以通过视觉通路呈现的汉语双字词为实验材料,操纵启动词与目标词的语义距离。在词汇决定实验中记录ERP,发现：（1）除N300外,P240亦对语义距离敏感,它可能是一种与语义加工有关的新的ERP成分;（2）P240在头皮中央偏左的部位较早出现,但在头皮右侧波幅较大;（3）N300和P240都不存在语义距离的半球效应,该结果没有证实右脑更专擅远距离语义加工的假设,表明使用汉语与使用拼音文字的脑机制存在差异。     

To Believe in Belief

Summary  Take the following version of scientific realism: we have good reason to believe that (some of the) current scientific theories tell us something specific about the underlying, i.e. unobservable, structures of the world, for instance that there are electrons with a certain electric charge, or that there are viruses that cause certain diseases. Popper, the rationalist, would not have adhered to the proposed formulation of scientific realism in terms of the rationality of existential beliefs concerning unobservables. Popper did not believe in belief. According to Van Fraassen, the empiricist, one may yet have a rational existential belief concerning unobservables, given a liberal notion of rationality of belief. In this paper I will investigate to what extent a reassessment of both Popper’s rejection of the rationality of belief and Van Fraassen’s reformulation of the rationality of belief, points towards a new and pragmatist dissolution of the ‘problem of scientific realism’.     

语义启动效应的脑机制研究综述

文章主要介绍了语义启动的过程及其脑机制的研究进展。启动效应是内隐记忆的研究焦点,而语义启动是通过刺激的语义特征来研究启动效应的。语义启动的脑机制研究一般是通过脑损伤、脑成像和ERPs等方法实现的。研究表明,大脑的广泛区域都参与着语义启动过程,尤其是脑前区和大脑的左半球。     

Phenomenology,idealism, and the legacy of Kant

Martin Heidegger closes his Winter Semester 1927–28 lectures by claiming that Kant’s Critique of Pure Reason, read through the lens of Edmund Husserl’s phenomenology, confirmed the accuracy of his philosophical path culminating in Being and Time. A notable interpretation of Heidegger’s debt to Kant, advanced by William Blattner, presents Heidegger as a temporal idealist. I argue that attention to Husserl’s adaptation of Kant’s critical philosophy shows that both Husserl and Heidegger are realists. I make my case by tracing a unified philosophical problematic through three puzzling passages: the Schematism chapter of the first Critique, Husserl’s thought experiment of the destruction of the world in Ideas, and the passage in Being and Time that motivates Blattner’s idealist reading. Husserl and Heidegger give accounts, derived from Kant, of how the consciousness of time makes it possible for objects to be perceived as enduring unities, as well as ‘genealogies of logic’ that show how a priori knowledge, including ontology, is possible. These accounts are idealistic only in the sense that they concern the ideal or essential features of intentionality in virtue of which it puts us in touch with things as they are independently of the contributions of any mind of any type.     

2~5年级小学生汉字识别中预视效应的发展研究

在阅读时,读者可以获取副中央凹处的词汇信息,副中央凹加工是构成流畅阅读的重要因素。本研究从儿童语言发展的角度,通过3个实验（共534名被试）,考察了汉语视觉字词加工中2~5年级学生的字形、语音、语义预视效应。结果发现：（1）2~5年级小学生均有字形预视效应;（2）2、3年级学生没有语音预视效应,4、5年级学生有此效应;（3）2年级学生没有语义预视效应,3、4、5年级学生有此效应。这表明,低水平的视觉信息—字形信息在儿童副中央凹加工中一直稳定地发挥作用;高水平的语言信息—语音和语义信息,随着儿童年级的升高和阅读技能的提升,逐渐地在儿童的副中央凹加工中发挥作用。儿童对汉字各类型信息的获取与使用的发展模式不同于拼音文字阅读发展理论的预测。     

形声字的语义透明度和结构类型对义符语音激活进程的影响

采用启动命名任务考察形声字的语义透明度和结构类型对义符语音激活进程的影响。结果发现,透明汉字和不透明汉字的义符语音在SOA=50 ms时都出现了激活;在SOA=100 ms时,透明汉字的义符语音激活仍然显著,不透明汉字的义符语音激活消退了;到SOA=300 ms时,两类汉字的义符语音激活完全消退。左形右声结构汉字的义符语音在SOA=50 ms和SOA=100 ms时都出现了激活,右形左声结构汉字的义符语音只在SOA=50 ms时出现了微弱的激活。     

语言理解中语义整合的神经机制

语义整合是语言阅读理解中非常重要的环节。随着认知神经科学技术的广泛应用,当前关于语义整合的研究取得了长足进步,各种模型层出不穷。但是不同模型对于语义整合的功能定位及其内在机制却存在较大的争议。本文首先介绍当前关于语义整合的主要模型,然后对当前不同理论模型之间关于语义整合的界定,以及语义整合的功能定位是在额下回还是颞叶的争论进行了分析。我们认为,关于语义整合的实质、语义整合的功能网络将是未来研究的主要方向,相关的研究对于语言理解理论的发展将具有重要的启示。