Department of Neuropsychiatry and Behavioral Sciences

Robert W. Jensen, M.D., J.D.

Dr. Jensen received his baccalaureate degree in Statistical Edconomics from the University of Utah (Summa Cum Laude). He received his law degree from the Harvard Law School and was an active trial lawyer and managing partner of a metropolitan law firm before completing a second undergraduate major in experimental psychology at the University of Utah.

Thereafter he completed pre-medical training at Bryn Mawr College. He earned his Medical Doctor degree from the University of California, San Fransisco (UCSF). He completed a categorical internal medicine internship in a University of Virginia program, and thereafter completed a primary care residency in Preventive, Occupational and Environmental medicine at the University of Kentucky. He practiced as a primary care physician and served as a Medical Executive Director for the Florida Department of Health for several years before returning to the University of Kentucky to complete a Neurology residency and chief residency. He was awarded a Neuro-Ophthalmology Fellowship at the Kellogg Eye Center in the Department of Ophthalmology & Visual Science at the University of Michigan. He then completed separate fellowship training in Neuro-Otology and Vestibular Disorders at the Barrow Neurological Institute of St. Joseph's Hospital & Medical Center in Phoenix. He is board Certified in Neurology. In 2004, he joined the Department of Neurology at The Ohio State University Medical Center.

Dr. Jensen's main interests are in Neuro-Ophthalmology and Neuro-Otology, and his clinical interest are neuro-opthalmology; neuro-otology; gait and balance disorders; dizziness; unexplained visual loss; double vision; optic neuritis; visual distortion. Dr. Jensen will also be doing general neurology in the Neurology Clinic here at Texas Tech University Health Sciences Center.

Gregory Schrimsher, Ph.D.

Dr. Schrimsher received his doctorate in clinical psychology from the University at Houston. Additionally, he has a Ph.D. in neuroscience from the University of Florida, College of Medicine.

Dr. Schrimsher's current research is examining the cognitive functioning and pattern of cognitive deficits of individuals presenting for substance use disorder treatment and the relation of cognitive status at the time of treatment to longer term treatment outcome. His doctoral research included examining whether asymmetry in the size of the caudate nuclei measured from MRI predicted the severity of attention-deficit hyperactivity disorder (ADHD) diagnostic behaviors in normal children.

Dr. Schrimsher has clinical experience in substance use disorder treatment in both hospital residential and community mental health intensive outpatient treatment including individual and group cognitive-behaviorally based treatments. This work includes extensive experience with patients with dual-diagnoses and multi-ethnic patient populations. He also has teaching experience in psychological and intellectual assessment, statistics, and both medical and veterinary neuroscience and neuroanatomy. His grant support includes current pilot grant funding from the South Central Mental Illness Research, Education, and Clinical Center through the Department of Veterans Affairs and past support as a co-investigator on two PO1 grants from the NINDS.

Ben Williams, M.D., Ph. D.

Dr. Williams was born in Texas and graduated from the University of Texas in Austin. He completed his Ph.D. at the University of Texas Medical Branch in Galveston, Texas. While doing his neurology residency rotation in San Diego, California, he met and married his wife Kate. After completing his residency rotation, he and his wife started their family and practice in San Luis Obispo, California. Dr. Williams and his family moved back to Lubbock in 1997 where they've been since. Dr. Williams enjoys projects around the house and traveling.

Sid E. O'Bryant, PhD

Dr. O'Bryant is an Assistant Professor in the Department of Neuropsychiatry and Behavioral Sciences and the Director of the Division of Neuropsychology and Cognitive Neuroscience. Much of his professional career has been devoted to understanding how ethnic and cultural variables influence thinking and behavior. His clinical and research interests are in understanding the role that ethnic, environmental, and biological factors exert on thinking during the aging process. To that aim, Dr. O'Bryant and colleagues from the Departments of Neuropsychiatry, Nursing, Family and Community Medicine, as well as the Garrison Institute on Aging have begun the Cochran County Aging Studies to understand how these factors impact aging in rural West Texas. He is also in the beginning stages of several research projects specifically aimed at understanding thinking and memory problems associated with aging among the local Mexican American community.

Dr. O'Bryant completed his undergraduate degree from Louisiana State University, his Ph.D. in clinical psychology, with emphasis in neuropsychology, at the University at Albany, State University of New York. His clinical neuropsychology internship was completed at the University of Mississippi Medical Center / Jackson VA consortium and residency at the New Orleans VA Medical Center.

Bhupesh Dihenia, MD

Dr. Bhupesh Dihenia has served the Lubbock area for eight years. He did his undergraduate work at Washington University in St. Louis, Missouri and completed his medical school at the University of Illinois College of Medicine in Chicago, Illinois. He completed his internal medicine internship at the University of Missouri in Kansas City. Dr. Dihenia went on to do his residency in neurology at Emory University School of Medicine in Atlanta, Georgia. He then completed a fellowship in sleep disorders and neurophysiology at Emory University School of Medicine in Atlanta, Georgia. He is board certified in neurology and sleep medicine.

He currently conducts neurophysiology testing in his office, owns and operates his own six-bed sleep lab, new high field MRI imaging center, and infusion center. Dr. Dihenia's interest in neurology came from being in a field that is still in its frontier. He also does extensive research in many subspecialties in neurology as well as sleep medicine.