Effect of repetitive neurofeedback training on brain activation during hand exercise

In this study, we examined that neurofeedback training encouraging to make mu suppression over the motor cortex would effect on the brain activation of the motor cortex while performing hand movements. To investigate the effects of training with neurofeedback, we analyzed the pattern changes of the amount of the mu suppression during real hand movements just after every neurofeedback training. The healthy subjects were trained to increase the motor cortex activity by using motor imagery, specifically maximizing the difference of the mu power between C3 and C4 during neurofeedback training. We have observed that the changes of the mu suppression over the motor cortex become stronger as the neurofeedback training was repeated. These findings further suggest that motor imagery training using neurofeedback can be applied to patients with stroke or chronic neurological disorders.