Saito Yuya, Yoshida Seina, Ueda Ryo, Senoo Atsushi
Juntendo Iji Zasshi. 2023 Nov 29;70(4):273-282. doi: 10.14789/jmj.JMJ23-0022-OA. eCollection 2024.
To elucidate physiological changes in the brain caused by rapid reading, we herein focused on brain areas related to language processing and reading comprehension and memory processes and evaluated changes in neural activities associated with reading speed and comprehension using functional magnetic resonance imaging (fMRI).
This study included 23 nonrapid and 23 rapid readers matched for age, gender, and handedness. T1 weighted image and fMRI were acquired using 3T MRI.
The neural activity was compared between nonrapid and rapid readers using fMRI. The correlation between neural activity and reading speed and comprehension was also determined.
The neural activities of rapid readers were significantly lower in Wernicke's and Broca's areas, left angular and supramarginal gyri, and hippocampus. Furthermore, reading speed was negatively correlated with neural activities in these areas. Conversely, reading comprehension was negatively correlated with the neural activities in the left angular gyrus.
Rapid readers exhibited reduced language processing, including phonological transformation, analysis, inner speech, semantic and syntactic processes, and constant reading comprehension during rapid reading.
为阐明快速阅读引起的大脑生理变化，我们在此聚焦于与语言处理、阅读理解及记忆过程相关的脑区，并使用功能磁共振成像（fMRI）评估与阅读速度和理解相关的神经活动变化。
本研究纳入了23名非快速阅读者和23名快速阅读者，他们在年龄、性别和利手方面相匹配。使用3T磁共振成像获取T1加权图像和fMRI。
使用fMRI比较非快速阅读者和快速阅读者之间的神经活动。还确定了神经活动与阅读速度和理解之间的相关性。
快速阅读者在韦尼克区、布洛卡区、左侧角回和缘上回以及海马体的神经活动显著降低。此外，阅读速度与这些区域的神经活动呈负相关。相反，阅读理解与左侧角回的神经活动呈负相关。
快速阅读者在快速阅读过程中表现出语言处理能力下降，包括语音转换、分析、内心言语、语义和句法过程，以及阅读理解能力不变。
