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bioRxiv · 10.1101/2020.07.21.213868

Motor and Sensory Cortical Processing of Neural Oscillatory Activities revealed by Human Swallowing using Intracranial Electrodes

Hashimoto, H.·Takahashi, K.·Kameda, S.·Yoshida, F.·Maezawa, H.·Oshino, S.·Tani, N.·Khoo, H. M.·Yanagisawa, T.·Yoshimine, T.·Kishima, H.·Hirata, M.
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Abstract

Swallowing, a unique movement, is attributed to the indispensable orchestration of motor-output and sensory-input. We hypothesized that swallowing can illustrate differences between motor and sensory neural processing. Eight epileptic participants fitted with intracranial electrodes over the orofacial cortex were asked to swallow a water bolus. Mouth-opening and swallowing were treated as motor tasks, while water-injection as sensory tasks. Phase-amplitude coupling between lower frequency and high {gamma} (HG) band (75-150 Hz) was investigated. An (10-16 Hz) -HG coupling appeared before motor-related HG power increase (burst), and a {theta} (5-9 Hz) -HG coupling appeared during sensory-related HG burst. The motor- and sensory-related HG amplitude were modulated at the trough of oscillations and peak of {theta} oscillations, respectively. These contrasting results acquired from the orofacial cortex can help to fully elucidate the sensory-motor function in the brain.

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Hashimoto, H., Takahashi, K., Kameda, S., Yoshida, F., Maezawa, H., Oshino, S., Tani, N., Khoo, H. M., Yanagisawa, T., Yoshimine, T., Kishima, H., Hirata, M.. 2020-07-21. Motor and Sensory Cortical Processing of Neural Oscillatory Activities revealed by Human Swallowing using Intracranial Electrodes. https://doi.org/10.1101/2020.07.21.213868

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