As this is a young specialty, there is much more about brain functioning to discover. Dr. Sangal specializes in those aspects of Central Neurophysiology that involve higher brain functions. These include Snoring with Sleep Apnea, Attention Deficit, Daytime Sleepiness, and Insomnia. Neurophysiological techniques are useful in the diagnosis of these disorders. Specific techniques include polysomnography, multiple sleep latency testing, and brain mapping of cognitive task-relevant long latency evoked potentials.
Treatment is mostly medical, although behavioral treatment has a role as an adjunct.
He is also Board certified in Sleep Medicine, receiving the highest score in the nation in the 1985 Sleep Medicine certifying examinations. He is Director of Clinical Neurophysiology Services, a professional corporation. He runs the Sleep Disorders Institute, which is accredited by the American Academy of Sleep Medicine. It is physician owned and operated, and not affiliated with any hospital. Testing is performed exclusively at the testing facilities in Troy.