Monitoring Local Regional Hemodynamic Signal Changes during Motor Execution and Motor Imagery Using Near-Infrared Spectroscopy

Frontiers in Physiology
Naoki IsoToshio Higashi

Abstract

The aim of this study was to clarify the topographical localization of motor-related regional hemodynamic signal changes during motor execution (ME) and motor imagery (MI) by using near-infrared spectroscopy (NIRS), as this technique is more clinically expedient than established methods (e.g., fMRI). Twenty right-handed healthy subjects participated in this study. The experimental protocol was a blocked design consisting of 3 cycles of 20 s of task performance and 30 s of rest. The tapping sequence task was performed with their fingers under 4 conditions: ME and MI with the right or left hand. Hemodynamic brain activity was measured with NIRS to monitor changes in oxygenated hemoglobin (oxy-Hb) concentration. Oxy-Hb in the somatosensory motor cortex (SMC) increased significantly only during contralateral ME and showed a significant interaction between task and hand. There was a main effect of hand in the left SMC. Although there were no significant main effects or interactions in the supplemental motor area (SMA) and premotor area (PMA), oxy-Hb increased substantially under all conditions. These results clarified the topographical localization by motor-related regional hemodynamic signal changes during ME and MI by using NIRS.

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Citations

Jun 16, 2018·Frontiers in Physiology·Lingguo BuJianfeng Li
May 27, 2017·Computational Intelligence and Neuroscience·Alyssa M BatulaHasan Ayaz
Sep 25, 2020·Journal of Applied Physiology·Kanji MatsukawaScott A Smith
Nov 27, 2020·Frontiers in Human Neuroscience·Akira SagariMasayoshi Kobayashi
Apr 26, 2020·Neurocritical Care·Marwan H OthmanDaniel Kondziella
Apr 3, 2021·Journal of Psychiatric Research·Alexander BystritskyTaylor P Kuhn
Oct 17, 2020·Neural Regeneration Research·Moemi MatsuoToshio Higashi

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Methods Mentioned

BETA
SMA
PMA

Software Mentioned

SPSS

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