Inclusion Criteria- First ever ischemic or hemorrhagic stroke or former stroke without any residual motor impairment
- 1 - 12 weeks post stroke
- Impaired arm motor function but some residual arm motor activity as defined by a score of less than 52 on Action Research Arm Test (ARAT), and the ability to execute at least 20 degrees of active shoulder extension and abduction against gravity.
Exclusion Criteria- Severe cognitive impairment defined as < 20 on Mini Mental Status Examination
- Orthopedic impairment, limiting mobility substantially or causing pain
- Visual disorders limiting the ability to comply with treatment regimen - < 18 years
- Unable to give informed consent