Open research questions.
A short, partial list of studies the field actually needs — and would benefit from regardless of where the answers landed.
- Longitudinal motor-planning correlates of progress in text-based communication.
- Predictors of successful fading from physical to verbal-only support.
- Replicable eye-tracking protocols that document gaze-before-point patterns in naturalistic conditions.
- EEG and fNIRS studies of language comprehension in nonspeaking autistic adults previously assessed as profoundly intellectually disabled.
- Dosage and partner-effect studies: how many hours, with how many different partners, before stable independence?
- Outcome studies tracking education, employment, mental health, and quality of life over 10+ years.
- Studies of regulation interventions as a precondition for motor performance.