A pilot randomized controlled trial using EEG-based brain-computer interface training for a Chinese-speaking group of...

Area of Science:

• Neuroscience
• Gerontology
• Human-Computer Interaction

Background:

• Cognitive training (CT) shows promise for improving elderly cognition.
• Existing CT research often overlooks cultural and linguistic factors.
• An electroencephalography (EEG)-based brain-computer interface (BCI) CT program was previously effective in English-speaking elders.

Purpose of the Study:

• To assess the acceptability, safety, and preliminary efficacy of a BCI CT program in Chinese-speaking elderly.
• To adapt and validate cognitive assessment tools for the local population.
• To build upon prior findings in English-speaking participants.

Main Methods:

• A randomized controlled trial with 39 participants (intervention n=21, control n=18).
• Intervention group received 24 BCI CT sessions over 8 weeks.
• Cognitive function was measured using a culturally adapted Repeatable Battery for the Assessment of Neuropsychological Status (RBANS); safety and usability were also assessed.

Main Results:

• The BCI CT program was found to be usable and acceptable by elderly users.
• Significant improvements in cognitive function were observed in the intervention group compared to the control group (median difference: 8.0, mean difference: 9.0).
• Most adverse events reported were mild, indicating a favorable safety profile.

Conclusions:

• The BCI CT system demonstrates potential for enhancing cognition in both English- and Chinese-speaking elderly populations.
• The positive usability and acceptability suggest feasibility for wider implementation.
• Further evaluation in a Phase III trial is warranted to confirm these findings.