2005-11-012024-05-18https://scholars.lib.ntu.edu.tw/handle/123456789/713141摘要：這個研究計畫的主旨是探討語言的神經機制, 特別是閱讀中文字時字形與字音的交互作用對字義所產生的影響. 這個計畫的兩個目的分別是: 第一, 使用字彙判斷作業在促發的情況下, 探討字的音旁 (包括規則性與一致性效果) 所產生的影響; 第二, 利用中文字的特性, 探討字型與字音的對單字辨識的個別影響, 及兩者的交互作用. 認知行為的結果 (Chou, 2003; Chou et al., 2005) 發現單字辨識的歷程是受到字形與字音兩者的交互作用所影響. 此研究計畫則是進一步使用功能性核磁共振造影 (fMRI) 來探討行為與腦活動之間的關連. 計畫的第一年將執行兩個功能性核磁共振造影的實驗, 分別收集在促發字呈現時間 50毫秒與 250 毫秒下的腦影像及行為反應, 以瞭解字形與字音兩者的交互作用. 第二年則採用一個新發展出的技術, 有效連結 (effective connectivity), 來了解不同腦區域間的前向和後向的方向性連結. 預期的研究成果將能增進我們對人腦如何處理字音與字形, 以及釐清在現有的文獻中對字音與字形交互作用在神經機制上的爭辯 (Tan et al., 2005; <br> Abstract: This project is to understand the neural mechanism of language processing, the interaction of orthography and phonology in accessing meaning from Chinese characters. There are two aims in the project. First, this study uses a primed lexical decision task to assess the processes of the phonetic radical, including regularity and consistency effects. Second, this study examines the separate influences of orthography and phonology, as well as the interaction between them, on character recognition in Chinese. Behavioral evidence (Chou, 2003; Chou et al., 2005) has demonstrated that orthographic and phonological sources of information interact to yield recognition and comprehension of written Chinese. Functional magnetic resonance imaging (fMRI) is further planned to evaluate the relationship between the behavioral performance and brain activity. The first year will conduct two fMRI studies to find out the brain regions that are involved in the interaction of orthographic and phonological information during lexical decision, using SOAs of 50ms and 250ms. The second year will use a fairly new technique, effective connectivity, to explore both forward and backward connections within these brain regions. The expected results will advance our knowledge of how the brain process phonology and orthography. Moreover, the findings will be helpful to disentangle the arguments about the interactive processing of phonology and orthography between two competing hypotheses (Tan et al., 2005 and Lee et al., 2004).功能性核磁共振造影字形字音字彙判斷促發fMRIorthographyphonologylexical decisionpriming