Inclusion Criteria:  Incomplete or complete SCI/D of ≥3 months Medically stable.  Exclusion Criteria:  MRI contra-indications (stabilizing hardware is typically MRI safe) Uncontrolled seizure disorder Cognitive impairment and/or communicative disability (e.g., due to brain injury) that prevent individuals from following directions or from learning Ventilator dependency Other major medical complications Pregnancy