Parkinson's Disease & Parkinsonism
Parkinson’s disease is a progressive neurologic movement disorder marked by loss of dopamine-producing neurons in the brain’s substantia nigra, leading to symptoms such as tremor (especially at rest), muscle rigidity, slowed movements (bradykinesia), and impaired balance.
“Parkinsonism” refers to the set of symptoms (tremor, rigidity, slowness) which can be caused by Parkinson’s disease itself or by other conditions with similar features. Approximately 6 million people in the United States experience some form of movement disorder, such as Parkinson's Disease, essential tremor, ataxia and dystonia. These disorders can be relentlessly progressive and disabling conditions, having a tremendous impact on one's social, emotional and physical wellbeing. We have extensive experience in diagnosing and treating movement disorders and are committed to making sure you receive the care you need.
Huntington Disease & Other Chorea Disorders
An inherited degenerative brain disorder (in the case of Huntington disease) characterized by uncontrolled involuntary (choreiform)movements, cognitive decline, and psychiatric/behavioral changes. “Chorea disorders” more broadly describe conditions marked by these irregular, dance-like, involuntary movements.
Essential Tremor & Various Tremor Syndromes
Essential tremor is one of the most common movement disorders; it causes rhythmic shaking- most commonly of the hands- especially during purposeful movement (action or postural tremor), often hereditary. “Tremor syndromes” refer to the broader group of conditions where involuntary shaking is a dominant feature (which may differ by when tremor occurs, how it appears, what body parts are affected).
Restless Leg Syndrome (RLS)
A neurological and sleep-related condition in which a strong, often unpleasant urge to move the legs arises when at rest or lying down (typically in evenings), often relieved temporarily by movement. It can significantly disrupt sleep and daily life.
Ataxia & Other Inherited or Acquired Ataxic Disorders
Ataxia refers to impaired coordination of movement, often due to dysfunction of the cerebellum or its pathways. These disorders can be inherited (genetic) or acquired (due to injury, toxin, disease). Patients may have unsteady gait, clumsiness, slurred speech, or eye-movement problems.
Dystonia (Genetic & Acquired)
Dystonia is a movement disorder characterized by sustained or intermittent muscle contractions that cause abnormal, often twisting movements or postures. It may be inherited (genetic) or acquired (secondary).Variants include focal forms such as blepharospasm (eyelid spasms), cervical dystonia (neck), hemifacial spasm (one side of face), writer’s cramp (hand), etc.
At Central Texas Neurology, we provide highly specialized care for movement disorders grounded in up-to-date knowledge, delivered withcompassion and empathy. Our movement-disorder clinic is led by Dr. Elizabeth Peckham, a neurologist with experience since 2007, together with Nurse Practitioner Breanna Purdie. We diagnose and treat:

Parkinson's
Dystonia
Huntington's Disease
Tourette's
Essential Tremor
Ataxia
Exercise, Nutrition & Physical Wellness
Other Resources
This place is the best. Dr. Couch listens patiently, is empathetic, and is the first doctor to help me find a treatment that works. He also understood my hesitation to keep trying new medications after so many have let me down. He gently suggested my treatment a year ago and talked through my concerns until I felt confident. Thanks to CTNC, my quality of life has improved drastically. I recommend you stop searching and visit this clinic right away.
Parkinson’s is a progressive neurological disorder caused by the loss of dopamine-producing brain cells. It leads to symptoms like:
Non-motor symptoms (e.g., sleep disturbances, depression, and loss of smell) can appear years before motor issues.
Movement disorders include:
Parkinson’s: Combination of genetics, environmental factors (e.g., pesticide exposure), and aging.
Clinical exams (neurologists assess symptoms like tremors/gait).
Parkinson’s:
Exercise: Delays progression in Parkinson’s (e.g., boxing, cycling).