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Attention focus plays an essential role in promoting motor performance and motor learning. There are two types of attention focus: internal focus and external focus. Internal focus refers to direct attention inside the body while external focus refers to direct attention outside the body. Several studies have reported that external focus positively affects motor performance and motor learning by promoting automatic control. The mechanisms of attention focus have been examined using electromyography (EMG), electroencephalography (EEG), and functional magnetic resonance imaging (fMRI). During rehabilitation, therapists promote patients’ movement acquisition and motor learning. This chapter reviews the application of attention focus in rehabilitation to promote motor performance and motor learning in patients.

Rehabilitation is an important treatment for spinocerebellar ataxia (SCA). The lack of improvement in ataxia, deficit of motor learning, and unstable balance causes disability for activities of daily living and restricts participation in social activities, further resulting in a disturbance of the restoration of quality of life. This narrative review describes physical rehabilitation, including measurement of movement disorder, associated with ataxia and possible interventions. Several lines of evidence suggest that high-intensity individualized physical rehabilitation programs, especially for gait and balance training, improve motor function. Continuous exercise at home contributes to the maintenance of the gait and balance function. Moreover, videography and mechanical technology contribute to the evaluation of ataxia and motor learning ability, and assistive robotic systems may improve gait stability. Neuromodulation montages, such as repetitive transcranial magnetic stimulation and transcranial electrical stimulation, can enhance the effect of physical rehabilitation. Further research aimed at developing a more-effective physical rehabilitation for these patients is expected.

Improving standing posture balance is an essential role of rehabilitation to prevent falls in the elderly and stroke victims. Recently, motor imagery has been reported to be an effective method to improve standing posture balance. Motor imagery is a simulation of a movement in the brain without actual movement. Motor imagery is believed to have a common neural basis with actual movement and is effective in reconstructing motor functions. Recently, it has also been shown that motor imagery can be enhanced through use in combination with neuromodulation techniques. In this chapter, motor imagery contributing to the improvement of standing postural balance and its combination with neuromodulation techniques are reviewed.

Repetitive peripheral magnetic stimulation (rPMS) is a noninvasive method involving the repetitive magnetic stimulation of peripheral nerves and muscles. Recently, its potential as a new neuromodulation technique for sensory motor disorders has been recognized. Its advantages include less pain than with electrical stimulation and that neuromuscular stimulation can be performed over clothing. These advantages make it a practical and straightforward adjunct tool widely used in clinical practice. In particular, the combination of rPMS and general rehabilitation reportedly promotes functional improvement in stroke patients with difficult involuntary contractions. This chapter reviews rPMS and its potential clinical applications in rehabilitation.

In recent years, neuroscience-based rehabilitation, also known as neurorehabilitation, has been attracting increasing attention worldwide. Electroencephalography (EEG) has been widely used in clinical practice as a tool for the evaluation and treatment of rehabilitation because of its noninvasive and simple measurement of human brain activity. EEG-electromyography coherence is a method to analyze the synchronization between the motor cortex and muscle activity during movement and to quantitatively assess how the motor cortex controls muscle activity. In addition, recent advances in analysis and measurement techniques have made it possible to estimate the source of EEG signals, thus serving as a method to evaluate rehabilitation. The brain-machine interface, which integrates medicine and engineering, has been widely applied in the treatment of rehabilitation and for improving the quality of life. This chapter provides an overview of EEG, and its uses as a tool for rehabilitation assessment and treatment.