BCI move: exploring pediatric BCI-controlled power mobility

TL;DR

This study explores how children with severe physical disabilities can use brain-computer interfaces to control powered mobility devices, showing improvements in performance and skill acquisition.

Contribution

The study introduces a practical framework for BCI-enabled power mobility training tailored to children with severe disabilities.

Findings

Participants showed significant improvements in performance and satisfaction with BCI-controlled mobility.

Most participants achieved increased power mobility skills over time.

BCI setup was practical, but calibration consistency varied.

Abstract

Children and young people (CYP) with severe physical disabilities often experience barriers to independent mobility, placing them at risk for developmental impairments and restricting their independence and participation. Pilot work suggests that brain-computer interface (BCIs) could enable powered mobility control for children with motor disabilities. We explored how severely disabled CYP could use BCI to achieve individualized, functional power mobility goals and acquire power mobility skills. We also explored the practicality of pediatric BCI-enabled power mobility.

Nine CYP aged 7-17 years with severe physical disabilities and their caregivers participated in up to 12 BCI-enabled power mobility training sessions focused on a personalized power mobility goal. Goal achievement was assessed using the Canadian Occupational Performance Measure (COPM) and Goal Attainment Scaling (GAS). The Assessment for Learning Powered Mobility (ALP) was used to measure session-by-session power mobility skill acquisition. BCI set-up and calibration metrics, perceived workload, and participant engagement were also reported.

Significant improvements in COPM performance (Z = −2.869, adjusted p = 0.012) and satisfaction scores (Z = −2.809, adjusted p = 0.015) and GAS T scores (Z = −2.805, p = 0.005) were observed following the intervention. ALP scores displayed a small but significant increase over time (R2 = 0.07–0.19; adjusted p = <0.001–0.039), with 7/9 participants achieving increased overall ALP scores following the intervention. Setup and calibration times were practical although calibration consistency was highly variable. Participants reported moderate workload with no significant change over time (R2 = 0.00–0.13; adjusted p = 0.006–1.000), although there was a trend towards increased frustration over time(R2 = 0.13; adjusted p = 0.006).

Participants were highly engaged throughout the intervention. BCI-enabled power mobility appears to help CYP with severe physical disabilities achieve personalized power mobility goals and acquire power mobility skills. BCI-enabled power mobility training also appears to be practical, but BCI performance optimization and skill acquisition may be needed to translate this technology into clinical use.

Figures