Dr. Cullum is a Clinical Neuropsychologist who specializes in the assessment of cognitive disorders. He is board-certified in Clinical Neuropsychology (ABPP/ABCN) and directs the Neuropsychology Program at UT Southwestern. Dr. Cullum also serves as the Chief of the Division of Psychology and is actively involved in research, teaching, and clinical practice in neuropsychology. His research includes investigations into cognitive dysfunction in aging and dementia, psychosis, depression, epilepsy, and head injury, including sports concussion. His lab is actively involved in new cognitive test development and in telemedicine applications of neuropsychology.