[演講] 中正心理系演講公告-3/9 Dr. 周泰立
心理系演講公告-95年3月9日（四）中午12:30 Dr. 周泰立 社科院423教室
【06.03.07】
時 間：95年3月9日（四）中午12:30
地 點：社科院423教室
主講 人：周泰立（中山醫學大學心理系助理教授）
演講主題：Semantic development : functional MRI studies
～請大家踴躍參加，儘早入座～
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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