He is also an active member of the Neuroscience Graduate Program. His basic laboratory research is focused on the molecular mechanisms of learning and memory, synaptic plasticity, and neuropsychiatric disorders such as autism, mental retardation, and Alzheimer’s. Dr. Powell's clinical Neurology practice is on the inpatient Neurology services at the University Hospitals and Parkland Memorial Hospital. Dr. Powell also supervises and teaches Neurology Residents as they see patients at the Parkland Memorial Hospital outpatient clinics.