COMBINED VISUAL DISPLAY & EYE TRACKING SYSTEM FOR HIGH FIELD FMRI STUDIES

在我们对语言处理的理解中有一个悬而未决的问题， 语音产生是指语音系统中的一个普通语音词汇 大脑既负责语音产生又负责文字识别。 数据从 对病变患者的研究提供了相互矛盾的证据， 调节语音通达的神经基质，支持 共同词汇假设和双重词汇假设。 使用回波平面成像（EPI）的fMRI研究将在 10个右撇子 我们的fMRI研究使用的任务， 系统地评估输入和输出语音处理， 并应有助于解决有关数量的不确定性， 语音词汇及其结构和功能。 四项工作 将应用于这些研究：听觉辨别，押韵 判断，词汇判断和同义词判断。 该项目由NIH R 03（1/01/98至12/31/98）资助。 已经进行了初步研究，以验证 听觉刺激硬件 在本项目中进行的初步研究可能会导致 今后将进行更全面的研究。 这项研究可能会导致 更好地理解语音系统中的大脑通路 用于语音产生和单词识别的访问，并且可以 有助于更好地理解语言的发展， 紊乱

An open question in our understanding of language processing and speech production is whether a common phonological lexicon within the brain serves both speech production and word recognition. Data from studies of patients with lesions provide conflicting evidence about the neural substrates mediating phonological access, supporting both the common lexicon and dual lexicons hypotheses. fMRI studies using Echo-planar imaging (EPI) will be performed in 10 right-handed subjects. Our fMRI study uses tasks that systematically evaluate both input and output phonological processing, and should help resolve the uncertainty about the number of phonological lexicons and their structure and function. Four tasks will be applied in these studies: Auditory discrimination, Rhyme judgments, Lexical decisions, and Synonym judgments. The project is funded by an NIH R03 (1/01/98 to 12/31/98). Preliminary studies have been performed to verify the operation of the auditory stimulus hardware. The initial studies performed in this project will likely lead to more comprehensive studies in the future. This research may result in a better understanding of the brain pathways involved in phonological access for speech production and for word recognition, and may contribute to a better understanding of language development and disorders.