Hemodynamic Signal Changes During Motor Imagery Task Performance Are Associated With the Degree of Motor Task Learning
| Autor: | Moemi Matsuo, Fumiko Iso, Toshio Higashi, Takefumi Moriuchi, Kilchoon Cho, Wataru Mitsunaga, Makoto Suzuki, Kengo Fujiwara, Naoki Iso, Takashi Hasegawa |
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| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
oxygenated hemoglobin Brain activity and meditation Visual analogue scale Audiology lcsh:RC321-571 Task (project management) Behavioral Neuroscience motor imagery Motor imagery Region of interest medicine lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry Biological Psychiatry Original Research motor area Supplementary motor area business.industry SMA Psychiatry and Mental health Neuropsychology and Physiological Psychology medicine.anatomical_structure Neurology ball rotation task Motor learning business motor learning Neuroscience |
| Zdroj: | Frontiers in Human Neuroscience, Vol 15 (2021) Frontiers in Human Neuroscience |
| ISSN: | 1662-5161 |
| DOI: | 10.3389/fnhum.2021.603069 |
| Popis: | PurposeThis study aimed to investigate whether oxygenated hemoglobin (oxy-Hb) generated during a motor imagery (MI) task is associated with the motor learning level of the task.MethodsWe included 16 right-handed healthy participants who were trained to perform a ball rotation (BR) task. Hemodynamic brain activity was measured using near-infrared spectroscopy to monitor changes in oxy-Hb concentration during the BR MI task. The experimental protocol used a block design, and measurements were performed three times before and after the initial training of the BR task as well as after the final training. The BR count during training was also measured. Furthermore, subjective vividness of MI was evaluated three times after NIRS measurement using the Visual Analog Scale (VAS).ResultsThe results showed that the number of BRs increased significantly with training (P < 0.001). VAS scores also improved with training (P < 0.001). Furthermore, oxy-Hb concentration and the region of interest (ROI) showed a main effect (P = 0.001). An interaction was confirmed (P < 0.001), and it was ascertained that the change in oxy-Hb concentrations due to training was different for each ROI. The most significant predictor of subjective MI vividness was supplementary motor area (SMA) oxy-Hb concentration (coefficient = 0.365).DiscussionHemodynamic brain activity during MI tasks may be correlated with task motor learning levels, since significant changes in oxy-Hb concentrations were observed following initial and final training in the SMA. In particular, hemodynamic brain activity in the SMA was suggested to reflect the MI vividness of participants. |
| Databáze: | OpenAIRE |
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