Inclusion CriteriaStudy will include subjects 18 years of age or older from any of the below groups:
- Stroke survivors, 3 months post event
- Upper extremity amputees, 3 months post event
- Cervical SCI (C-5 to C-7), 3 months post event
- Cerebral palsy participants
- Healthy participants
Exclusion Criteria- The inability to perform at least some aspects of ADL tasks such as drinking, pouring, pinching, and grasping.
- Severe spasticity