A neurophysiologist is a specialized scientist who studies the functions of the nervous system, including the brain, spinal cord, and nerves. They investigate how electrical and chemical signals in the body affect behavior, movement, and overall health. This field combines aspects of neuroscience and physiology to understand how the nervous system operates in both healthy and diseased states. Neurophysiologists often use various techniques, such as electroencephalography (EEG) and magnetic resonance imaging (MRI), to observe brain activity and diagnose conditions like epilepsy or multiple sclerosis. Their research contributes to advancements in treatments and therapies for neurological disorders, improving patient care and outcomes.