Immediate effects of short-term meditation on sensorimotor rhythm-based brain–computer interface performance

A 20-minute guided mindfulness meditation session does not significantly improve control of a sensorimotor rhythm-based brain-computer interface. Thirty-seven subjects performed cursor control tasks before and after either a meditation exercise or a control condition of listening to a journal article. No significant change in BCI performance or EEG control signal occurred in either group, and the difference between groups was not significant. The findings suggest that longer meditation practice is needed to enhance SMR-based BCI control.

Study at a glance

Abstract

Introduction: Meditation has been shown to enhance a user's ability to control a sensorimotor rhythm (SMR)-based brain-computer interface (BCI). For example, prior work have demonstrated that long-term meditation practices and an 8-week mindfulness-based stress reduction (MBSR) training have positive behavioral and neurophysiological effects on SMR-based BCI. However, the effects of short-term meditation practice on SMR-based BCI control are still unknown. Methods: In this study, we investigated the immediate effects of a short, 20-minute meditation on SMR-based BCI control. Thirty-seven subjects performed several runs of one-dimensional cursor control tasks before and after two types of 20-minute interventions: a guided mindfulness meditation exercise and a recording of a narrator reading a journal article. Results: We found that there is no significant change in BCI performance and Electroencephalography (EEG) BCI control signal following either 20-minute intervention. Moreover, the change in BCI performance between the meditation group and the control group was found to be not significant. Discussion: The present results suggest that a longer period of meditation is needed to improve SMR-based BCI control.