Short progressive muscle relaxation or motor coordination training does not increase performance in a brain-computer...

Area of Science:

• Neuroscience
• Rehabilitation Engineering

Background:

• Brain-computer interfaces (BCIs) enable device control via sensorimotor rhythm (SMR) modulation.
• Many users struggle to achieve adequate accuracy with current BCI technology.
• Pre-BCI interventions may enhance user performance.

Purpose of the Study:

• To evaluate the efficacy of visuo-motor coordination (VMC) training and progressive muscle relaxation (PMR) in improving BCI performance.
• To compare VMC and PMR interventions against a control group (reading task).
• To investigate potential correlations between pre-BCI performance metrics and BCI outcomes.

Main Methods:

• A study involving 154 naïve participants across two BCI laboratories.
• Participants were assigned to VMC training, PMR, or a control group (CG).
• BCI performance was assessed post-intervention.

Main Results:

• No statistically significant difference in BCI performance was observed between the VMC, PMR, and CG groups.
• Participant relaxation levels and visuo-motor performance showed mixed associations with BCI performance across the two labs.
• The interventions did not demonstrate a strong, consistent effect on improving BCI accuracy.

Conclusions:

• Visuo-motor coordination (VMC) and progressive muscle relaxation (PMR) do not appear to be robust methods for enhancing brain-computer interface (BCI) performance in naïve users.
• Further research is warranted to explore alternative training strategies, parameters, or experimental designs.
• The findings suggest current pre-BCI interventions may have limited efficacy in boosting SMR-based BCI performance.