Abstract
Somatotopic representation in the cerebral cortex of somatosensory stimulation has been widely reported, but that in the cerebellum has not. We investigated the latter in the human cerebellum by functional MRI (fMRI). Using a 1.5 tesla imager, we obtained multislice blood oxygen level-dependent fMRI with single-shot gradient-echo echoplanar imaging in seven right-handed volunteers during electrical stimulation of the left index finger and big toe. In the anterior and posterior cerebellum, activated pixels for the index finger were separate from those for the toe. This suggests that somatosensory stimulation of different parts of the body may involve distinct areas of in the cerebellum as well as the cerebral cortex.
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Part of this study is supported by grant in aid Japanese Society for Promotion of Science (C)13670642.
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Takanashi, M., Abe, K., Yanagihara, T. et al. A functional MRI study of somatotopic representation of somatosensory stimulation in the cerebellum. Neuroradiology 45, 149–152 (2003). https://doi.org/10.1007/s00234-002-0935-3
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DOI: https://doi.org/10.1007/s00234-002-0935-3