Brain Activity during the Observation, Imagery, and Execution of Tool Use: An fNIRS/EEG Study

Nakano, Hitoo

doi:10.4172/2165-7025.s1-009

Cited by 18 publications

(16 citation statements)

References 48 publications

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“…Suzuki et al [11] reported the excitability of spinal motor neurons in the motor imagery condition to be influenced by the descending pathways from the cerebral nervous system. Furthermore, activation of the primary motor area, supplementary motor area, premotor area, primary somatosensory area, dorsolateral prefrontal area, cingulate cortex, and cerebellar regions occurred during motor imagery [4][5][6][7]. Therefore, activation of the cerebral cortex in the motor imagery condition presumably increased the excitability of spinal motor neurons via the corticospinal pathway and extrapyramidal tract.…”

Section: The Factor Indicating Increased Spinal Motor Neuron Excitabimentioning

confidence: 98%

The Effects of Motor Imagery After a Variety of Motor Learning Times on Excitability of Spinal Motor Neurons and Accurate Motion

Fukumoto¹,

Bunno²

2017

Neurological Physical Therapy

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Purpose: This study aimed to examine the effects of motor imagery on the excitability of spinal motor neurons and accurate motion. Subjects and Methods: About 30 healthy volunteers were recruited. F-waves were recorded at rest, while touching a sensor and motor imagery conditions. Also, the pinch force was measured before and after motor imagery. Furthermore, the subjects mastered the 50% MVC pinch force with learning times of 10 s, 30 s, 1 min, and 2 min beforehand. Results: Spinal motor neuron excitability with motor imagery after motor learning for 10 s, 30 s, 1 min, and 2 min was significantly increased as compared to other conditions. Accurate motion in the pinch task after motor imagery was better maintained than in the pinch task before motor imagery with motor learning times of 30 s and 1 min. However, with learning times of 10s and 2 min, the subject's ability to sustain accurate motion in the pinch task after motor imagery was significantly decreased as compared to that of the pinch task before motor imagery. Conclusion: Motor imagery increases spinal motor neuron excitability. To maximally improve accurate motion using motor imagery, it is important to practice and master motor learning beforehand

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Section: The Factor Indicating Increased Spinal Motor Neuron Excitabimentioning

confidence: 98%

The Effects of Motor Imagery After a Variety of Motor Learning Times on Excitability of Spinal Motor Neurons and Accurate Motion

Fukumoto¹,

Bunno²

2017

Neurological Physical Therapy

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“…Both motor imagery and action observation share the activation of cortical neural networks as implicated in movement execution (Figure 2) [13]. Moreover, we reported that brain activity during movement observation, imagery, and execution uses different pathways according to the sensory modality (Figure 3) [14]. This chapter discusses the clinical results of motor imagery and action observation studies and rehabilitation applications.…”

Section: Introductionmentioning

confidence: 97%

“…This chapter discusses the clinical results of motor imagery and action observation studies and rehabilitation applications. Brain activity during observation, imagery, and execution of tool use [14]. The top row of the images shows the left side of the brain, whereas the bottom row of the images shows the right side of the brain.…”

Section: Introductionmentioning

confidence: 99%

Motor Imagery and Action Observation as Effective Tools for Physical Therapy

Nakano¹,

Kodama²

2017

Neurological Physical Therapy

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Motor imagery and action observation facilitate motor recovery of patients because both the motor imagery and the action observation share the activation of cortical neural networks implicated in movement execution. Specifically, imagery, observation, and execution activate the medial parietal area of the brain located between the parietooccipital sulcus and the posterior end of the cingulate sulcus. This chapter reviews the neural mechanisms and clinical studies of motor imagery and action observation and discusses the applications in physical therapy.

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“…Numerous neurophysiological studies have discussed the effect of MI on the central nervous system by using positron emission tomography, functional magnetic resonance imaging, and near-infrared spectroscopy [10][11][12][13]. The primary motor cortex, premotor area, supplementary motor area, prefrontal cortex, parietal lobule, cingulate area, cerebellum, and basal ganglia were activated during MI [10][11][12][13]. These brain areas were also activated during motor execution (ME), and thus the MI and ME have a common neural network.…”

Section: Introductionmentioning

confidence: 99%

Motor Imagery for Neurorehabilitation: The F-Wave Study

Bunno¹

2020

Somatosensory and Motor Research

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The immediate enrollment in rehabilitation program and facilitation of the excitability of spinal motor neurons are very important for post-stroke patients. We previously suggested that persistence and the F/M amplitude ratio, indicator of the excitability of spinal motor neurons, were significantly increased during MI. Thus, MI has a greater effect on the excitability of spinal motor neurons. We also indicated that the imagined muscle contraction strength may not affect the excitability of spinal motor neurons. Further, kinesthetic imagery can more facilitate the excitability of spinal motor neurons. However, longer duration of MI may not affect the excitability of spinal motor neurons. Therefore, slight imagined muscle contraction strength may be sufficient to facilitate the excitability of spinal motor neurons, and duration and strategy of imagery should be considered in neurorehabilitation.

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Brain Activity during the Observation, Imagery, and Execution of Tool Use: An fNIRS/EEG Study

Cited by 18 publications

References 48 publications

The Effects of Motor Imagery After a Variety of Motor Learning Times on Excitability of Spinal Motor Neurons and Accurate Motion

The Effects of Motor Imagery After a Variety of Motor Learning Times on Excitability of Spinal Motor Neurons and Accurate Motion

Motor Imagery and Action Observation as Effective Tools for Physical Therapy

Motor Imagery for Neurorehabilitation: The F-Wave Study

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