2007-08-012024-05-18https://scholars.lib.ntu.edu.tw/handle/123456789/705785摘要：這個研究計畫的主旨是探討語意處理的年齡效果, 亦即 9 歲至 15 歲以中文為母語的孩童在語意處理的發展變化. 孩童們將判斷是否兩個字在中文意義上有關聯. 實驗的刺激材料分為三組: 高語意相關字對, 低語意相關字對,及語意不相關字對 (Hue et al., 2005). 這是一個兩年期的研究計畫: 第一年的計畫, 將收集孩童在處理中文語意關聯的認知行為資料. 先前的文獻已指出, 語意關聯作業可以用來了解語意記憶的組織, 以及孩童在語意處理的發展變化 (Chou et al., 2006a; 2006b). 第二年的計畫, 將利用功能性核磁共振造影 (fMRI), 收集孩童在處理語意關聯的腦影像, 來探討行為與腦活動之間的對應關係, 以期對中文字語意處理的神經機制有更進一步的瞭解. 預期的行為資料結果, 將是高語意相關字對的反應時間, 快於低語意相關字對, 而低語意相關字對的反應時間, 又會快於語意不相關字對. 預期的腦影像資料結果, 將是年齡較大的孩童, 比年齡較小的孩童, 在左腦半球的中顳葉區及下頂葉區, 會產生腦部活動增加的現象, 顯示年齡較大的孩童具有更精緻化的語意表徵系統及更有效率的語意整合處理.<br> Abstract: This project is designed to understand the age effects of semantic processing to Chinese characters for children between ages 9 and 15. Children will be asked to judge if two Chinese characters are related in meaning. Experimental materials will be classified as three types of character pairs: closely related pairs, distantly related pairs, and unrelated pairs (Hue, et al., 2005). This is a two-year project. The first year plan is to conduct behavioral studies of semantic association in Chinese for children. Children’s character association will be able to real the developmental changes of semantic processing, as suggested by previous findings (Chou et al., 2006a; 2006b). The second year plan is to examine the neural correlates of semantic association in Chinese for children, using functional magnetic resonance imaging (fMRI). The relationship between behavioral data and brain images will be helpful to understand the functional architecture of word recognition systems for written Chinese characters. The predicted behavioral results are that the reaction times of closely related pairs are faster as compared to distantly related pairs, which in turn are faster than the unrelated pairs. The predicted regions will be that increasing age was associated with greater activation in the left middle temporal gyrus and inferior parietal lobule, suggesting that older children have a more elaborated semantic representational system and more effective semantic integration.語意關聯功能性核磁共振造影年齡效果semantic associationfMRIage effects