A Single-Button Mobility Platform for Cause-Effect Learning in Children with Cerebral Palsy: A Pilot Study.

Area of Science:

• Pediatric Rehabilitation
• Developmental Psychology
• Human-Computer Interaction

Background:

• Mobility is crucial for causal reasoning development in children.
• Severe motor disabilities limit interaction, potentially delaying causal learning.
• Investigating assistive technology to enhance causal inference in children with disabilities.

Purpose of the Study:

• To assess the usability of a wheelchair-mounted mobility platform for children with severe motor disabilities.
• To collect preliminary data on the platform's impact on causal learning metrics.
• To inform sample size and session number for future, larger trials.

Main Methods:

• Pilot randomized controlled trial (RCT) with four children (GMFCS IV-V).
• Intervention group used a wheelchair-mounted mobility platform; control group received standard therapy.
• Assessed usability (therapist questionnaire, SUS) and causal learning (reaction time, keystroke accuracy).

Main Results:

• Therapists reported positive usability of the mobility platform.
• Children using the platform showed promising trends in reaction time and keystroke accuracy.
• Preliminary data provided estimates for future study sample sizes and session requirements.

Conclusions:

• The mobility platform is feasible and usable by therapists for children with severe disabilities.
• While trends were positive, conclusive evidence for enhanced causal learning was not found.
• Pilot data offers valuable insights for designing future, statistically powered trials focused on keystroke accuracy.