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The Role of Occipitotemporal Network for Speed-Reading:An fMRI Study

Neuroscience Bulletin 2024年第9期40卷 1261-1273页

作者： Dexin Sun Zhilin Zhang Naoya Oishi Qi Dai Dinh Ha Duy Thuy Nobuhito Abe Jun Tachibana Shintaro Funahashi Jinglong Wu Toshiya Murai hidenao fukuyama Research Center for Medical Artificial Intelligence Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen518055China University of Chinese Academy of Sciences Beijing100049China Department of Psychiatry Graduate School of MedicineKyoto UniversityKyoto606-8501Japan Medial Innovation Center Graduate School of MedicineKyoto UniversityKyoto606-8501Japan Human Brain Research Center Graduate School of MedicineKyoto UniversityKyoto606-8501Japan Kokoro Research Center Kyoto UniversityKyoto606-8501Japan Speed Reading Academy Kyoto600-8439Japan

The activity of occipitotemporal regions involved in linguistic reading processes,such as the ventral occipitotemporal cortex(vOT),is believed to exhibit strong interactions during higher-order language processing,specifically in the connectivity between the occipital gyrus and the temporal *** this study,we utilized functional magnetic resonance imaging(fMRI)with psychophysiological interaction(PPI)and dynamic causal modeling(DCM)to investigate the functional and effective connectivity in the occipitotemporal network during speed *** conducted the experiment with native Japanese speakers who underwent and without speed-reading training and subsequently performed established reading tasks at different speeds(slow,medium,and fast)while undergoing 3-Tesla Siemens *** activation analyses revealed significant changes in occipital and temporal regions as reading speed increased,indicating functional connectivity within the occipitotemporal *** results further demonstrated more intricate effective connections and high involvement within the occipitotemporal pathway:(1)reading signals originated from the inferior occipital gyrus(iO),distributed to the vOT and the posterior superior temporal sulcus(pSTS),and then gathered in the anterior superior temporal sulcus(aSTS);(2)reading speed loads had modulation effects on the pathways from the aSTS to vOT and from the iO to *** findings highlight the complex connectivity and dynamic interactions within the occipitotemporal network during speed-reading processes.

关键词： Speed reading fMRI The occipitotemporal network Functional connectivity Effective connectivity

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