# Increasing Mu wave desynchronization after dance classes on people with Parkinson’s disease

## TL;DR

This study shows that dance classes over six months increase Mu wave desynchronization in people with Parkinson’s disease, suggesting improved mirror neuron activity.

## Contribution

The study provides objective EEG evidence that dance classes enhance mirror neuron system activity in Parkinson’s disease patients.

## Key findings

- Mu rhythm desynchronization increased in the alpha 1 band at central channels after six months of dance classes.
- No significant changes were observed in the occipital channels, indicating localized effects.
- The results suggest dance may improve mirror neuron system function in Parkinson’s disease.

## Abstract

This pilot study attempted to identify a relationship between dance and mirror neuron activity in people with Parkinson’s disease by investigating Mu rhythm desynchronization in electroencephalographic (EEG) data before and after regular participation in a program of dance classes. During the EEG recordings, the participants observed a sequence of videos showing either choreographic (complex) or daily (simple) movements, each preceded by a baseline image (dark screen) and a control video (moving blocks). The results showed a statistically significant increase in Mu rhythm desynchronization in the alpha 1 band at the central channels after 6 months of dance classes. Control comparisons with occipital channels showed no such increase. Mu rhythm suppression has been demonstrated to reflect the activity of the human mirror neuron system, respond to variations in motor expertise, and seem to be impaired in Parkinson’s disease. The Mu wave desynchronization increase shown here, after 6 months of dance classes, is an objective measurement of the benefits of such practice for people with Parkinson’s disease (PD).