1. Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
2. Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
3. Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
4. Center for Neural Basis of Cognition, Pittsburgh, Pennsylvania, USA
5. Department of Veterans Affairs, Human Engineering Research Labs, VA Center of Excellence, Pittsburgh, Pennsylvania, USA