心理系演讲公告-95年3月9日（四）中午12:30 Dr. 周泰立 社科院423教室 【06.03.07】 时 间：95年3月9日（四）中午12:30 地 点：社科院423教室 主讲 人：周泰立（中山医学大学心理系助理教授） 演讲主题：Semantic development : functional MRI studies ～请大家踊跃参加，尽早入座～ Semantic development : functional MRI studies Functional magnetic resonance imaging (fMRI) was used to explore the neural correlates of semantic judgments to auditory and visual words in a group of 9- to 15-year-old children. Subjects were asked to indicate if word pairs were related in meaning. Consistent with previous findings in adults, children showed activation in bilateral inferior frontal gyri (BAs 47, 45) and left middle temporal gyrus (BA 21). Words with strong semantic association elicited significantly greater activation in bilateral inferior parietal lobules (BA 40), suggesting stronger integration of highly related semantic features. B y contrast, words with weak semantic association elicited greater activation in left inferior frontal gyrus (BA 45), suggesting more difficult feature search. Moreover, increasing age was correlated with greater activation in left middle temporal gyrus (BA 21) and inferior parietal lobule (BA 40), suggesting that older children have more elaborated semantic representations and more complete semantic integration processes, respectively. --

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