Inclusion Criteria:  Stroke that occurred within 3 months of the study Presence of cognitive impairment attributable to stroke Between the ages of 18 and 90 Able to understand the nature of the study and give informed consent Able to follow simple commands as evidenced by NIHSS subtest 1C =0  Exclusion Criteria  History of chronic, serious, or unstable neurologic illness other than stroke Current unstable medical illness(es) History of reoccurring seizures or epilepsy Current abuse of alcohol or drugs (prescription or otherwise) Active and severe psychiatric disorder Metallic objects in the face or head other than dental apparatus such as braces, fillings, and implants. Pregnancy