Cortical activation during reading aloud of long sentences: fMRI study.
The purpose of this study was to investigate human brain activity during the reading aloud of Japanese sentences using fMRI. Twenty-three right-handed normal Japanese subjects performed three reading tasks: covert reading of meaningful or meaningless sentences, and reading aloud of meaningful sentences. Areas in the bilateral frontal and temporal cortices were activated during the reading-aloud task compared with the covert reading task. In addition, activation of these brain areas showed significant positive correlation with the reading speed during the reading-aloud task. Our results indicate that bilateral frontal-temporal networks are involved in phonological processing during reading aloud.
D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D001931:Brain Mapping / Q000379:methods*; D002540:Cerebral Cortex / Q000502:physiology*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D011932:Reading; D012044:Regression Analysis; D013060:Speech / Q000502:physiology*