Characteristic Patterns of Brain Activation in Adults with Developmental Stuttering in Reading Katakana Words Aloud(<Feature Articles>Analyses and Conditions of Speech Disorders-Focusing on Stuttering and Articulation Disorders-)

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  • MORI Koichi
    Research Institute of National Rehabilitation Center for Persons with Disabilities
  • CAI Chang
    Research Institute of National Rehabilitation Center for Persons with Disabilities Center for Information and Neural Networks, National Institute of Information and Communication Technology
  • OKZAKI Shuntaro
    Research Institute of National Rehabilitation Center for Persons with Disabilities Division of Cerebral Ingegration, National Institute for Physiological Sciences
  • OKADA Minae
    Research Institute of National Rehabilitation Center for Persons with Disabilities

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Other Title
  • カタカナ単語読み上げの神経機構と発達性吃音成人の脳活動パタンの特徴(<特集>言語障害(吃音と構音障害)の様相と分析)
  • カタカナ単語読み上げの神経機構と発達性吃音成人の脳活動パタンの特徴
  • カタカナ タンゴ ヨミアゲ ノ シンケイ キコウ ト ハッタツセイ キツオン セイジン ノ ノウ カツドウ パタン ノ トクチョウ

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Abstract

To elucidate the neural basis of stuttering, brain activation for reading words was compared between adults who do and do not stutter (AWS/ANS) with functional MRI. Japanese native speakers read aloud familiar (F), unfamiliar (U) and pseudo- (P) words of 4 or 5 syllables. P contained much fewer native syllable sequences than F or U. F primarily activated the left angular/supramarginal gyri (lAG/SMG), U Broca's area, and P the left ventral premotor/motor areas (lvPMA/MA), respectively, in ANS. AWS showed lower activation in lAG/SMG and Broca's area, but higher activation in lvPMA/MA, implying that AWS cannot read native syllable sequences as efficiently as ANS.

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