論文 - 詳細
| RRC ID | 60735 |
|---|---|
| 著者 | Oya T, Takei T, Seki K. |
| タイトル | Distinct sensorimotor feedback loops for dynamic and static control of primate precision grip. |
| ジャーナル | Commun Biol |
| Abstract |
Volitional limb motor control involves dynamic and static muscle actions. It remains elusive how such distinct actions are controlled through separated or shared neural circuits. Here we explored the potential separation for dynamic and static controls in primate hand actions, by investigating the neuronal coherence between local field potentials (LFPs) of the spinal cord and the forelimb electromyographic activity (EMGs), and LFPs of the motor cortex and the EMGs during the performance of a precision grip in macaque monkeys. We observed the emergence of beta-range coherence with EMGs at spinal cord and motor cortex in the separated phases; spinal coherence during the grip phase and cortical coherence during the hold phase. Further, both of the coherences were influenced by bidirectional interactions with reasonable latencies as beta oscillatory cycles. These results indicate that dedicated feedback circuits comprising spinal and cortical structures underlie dynamic and static controls of dexterous hand actions. |
| 巻・号 | 3(1) |
| ページ | 156 |
| 公開日 | 2020-4-2 |
| DOI | 10.1038/s42003-020-0861-0 |
| PII | 10.1038/s42003-020-0861-0 |
| PMID | 32242085 |
| PMC | PMC7118171 |
| MeSH | Animals Behavior, Animal Electromyography Evoked Potentials, Motor Feedback, Sensory* Functional Laterality Hand / innervation* Hand Strength* Macaca Male Motor Cortex / physiology* Spinal Cord / physiology Time Factors Volition |
| IF | 4.165 |
| 引用数 | 0 |
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| 最多言及媒体 | X(Twitter) |
| 各媒体での言及数の合計 | 32 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
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