Photo of Fay B. Horak, Ph.D., P.T.

Fay B. Horak Ph.D., P.T.

Dr. Horak studies neurological disorders that effect balance and gait in the elderly, people with Parkinson's disease, multiple sclerosis, cerebellar ataxia, vestibular injury or disease, diabetic neuropathy, and back pain.

View video about Dr. Horak's work

Recent awards:

One of the most cited articles over the last 125 years by the American Physiological Society for 2012: Horak FB, Nashner LM. Central programming of postural movements - adaptation to altered support-surface configurations. Journal of Neurophysiology. 55: 1369-1381, 1986. OHSU Technology Innovation Award/Patent 7.867.140 for 2012 National Translational Neurology Researcher Award, awarded by the Neurology Section of the American Physical Therapy Association for 2011 2014 Medical Research Foundation Mentor Award. The Mentor Award is presented to an Oregonian who has provided outstanding leadership and support of health research, education or the advancement of health care.

Professor of neurology:

Department of Neurology
Department of Biomedical Engineering (profile)
Department of Physiology and Pharmacology

Faculty member:
Neuroscience Graduate Program

Honorary faculty:
University of Oregon
Pacific University
University of Calgary
University of Waterloo

PubMed Listing

Grants (current):

NIH, National Institute of Aging: Peripheral and Central Postural Disorders in the Elderly (1989-2019)

Veterans Affairs RR&D: Frontal cortex and gait freezing in Parkinson’s disease: rehabilitation impact (2014-2017)

Pacific Northwest Udall Center (UW, subcontract NIH): Balance/Gait Disorders in PD associated with Genetic inheritance (2015-2020)

NIH STTR Phase II: A Short Instrumented Test of Mobility for Neurological Disorders: ISAW (2014-2017)

SBIR from NIH: IMove: Instrumented Movement Analysis to Quantify Gait in Cerebral Palsy (2015-2017)

NIH, National Cancer Institue: Preventing Falls after Cancer: Tai Chi vs. Strength Training (2012-2017)

Michael J. Fox Foundation: Effects of augmenting cholinergic function on gait and balance (2014-2017)

U.S. Army Medical Research Acquisition Activity: Assessment and Rehabilitation of Central Sensory Impairments for Balance in mTBI (2015-2019)

National Multiple Sclerosis Society: Identification of Gait and Balance Deficits in Patients with MS using Wireless Sesnors (2014-2017)


  • B.S., University of Wisconsin 1973
  • M.S., University of Minnesota 1977
  • Ph.D., University of Washington 1982


  • "Gait stability has phase-dependent dual-task costs in Parkinson's disease." Frontiers in Neurology In: , Vol. 9, No. MAY, 373, 30.05.2018.
  • "Day-to-day variability of postural sway and its association with cognitive function in older adults : A pilot study." Frontiers in Aging Neuroscience In: , Vol. 10, No. MAY, 126, 04.05.2018.
  • "What if low back pain is the most prevalent parkinsonism in the world?" Frontiers in Neurology In: , Vol. 9, No. MAY, 313, 02.05.2018.
  • "Consensus Paper : Neurophysiological Assessments of Ataxias in Daily Practice." Cerebellum In: , 14.04.2018, p. 1-26.
  • "Gait asymmetry in people with Parkinson's disease is linked to reduced integrity of callosal sensorimotor regions." Frontiers in Neurology In: , Vol. 9, No. APR, 215, 04.04.2018.
  • "Dysfunctional Limbic Circuitry Underlying Freezing of Gait in Parkinson's Disease." Neuroscience In: , Vol. 374, 15.03.2018, p. 119-132.
  • "Inertial Sensor-Based Assessment of Central Sensory Integration for Balance after Mild Traumatic Brain Injury." Military Medicine In: , Vol. 183, 01.03.2018, p. 327-332.
  • "Are hypometric anticipatory postural adjustments contributing to freezing of gait in Parkinson's disease?" Frontiers in Aging Neuroscience  In: , Vol. 10, No. FEB, 36, 15.02.2018.
  • "Case studies in neuroscience : a dissociation of balance and posture demonstrated by camptocormia." Journal of Neurophysiology In: , Vol. 119, No. 1, 01.01.2018, p. 33-38.
  • "Instrumented Test of Sensory Integration for Balance : A Validation Study." Journal of Geriatric Physical Therapy  In: , Vol. 41, No. 2, 01.01.2018, p. 77-84.
  • "Biomechanics and neural control of movement, 20 years later : What have we learned and what has changed?" Journal of NeuroEngineering and Rehabilitation In: , Vol. 14, No. 1, 91, 11.09.2017.
  • "Relationship between perceived fatigue and performance fatigability in people with multiple sclerosis : A systematic review and meta-analysis." Journal of Psychosomatic Research In: , Vol. 100, 01.09.2017, p. 1-7.
  • "Postural motor learning in Parkinson's disease : The effect of practice on continuous compensatory postural regulation." Gait and Posture In: , Vol. 57, 01.09.2017, p. 299-304.
  • "Falls, functioning, and disability among women with persistent symptoms of chemotherapy-induced peripheral neuropathy." Journal of Clinical Oncology  In: , Vol. 35, No. 23, 10.08.2017, p. 2604-2612.
  • "Investigation of anticipatory postural adjustments during One-Leg Stance using inertial sensors : Evidence from subjects with Parkinsonism." Frontiers in Neurology In: , Vol. 8, No. JUL, 361, 25.07.2017.
  • "Anticipatory Postural Adjustment During Self-Initiated, Cued, and Compensatory Stepping in Healthy Older Adults and Patients With Parkinson Disease." Archives of Physical Medicine and Rehabilitation  In: , Vol. 98, No. 7, 01.07.2017, p. 1316-1324.e1.
  • "Validity of the Instrumented Push and Release Test to Quantify Postural Responses in Persons With Multiple Sclerosis." Archives of Physical Medicine and Rehabilitation In: , Vol. 98, No. 7, 01.07.2017, p. 1325-1331.
  • "Dual task interference on postural sway, postural transitions and gait in people with Parkinson's disease and freezing of gait." Gait and Posture In: , Vol. 56, 01.07.2017, p. 76-81.
  • "Instrumented balance and walking assessments in persons with multiple sclerosis show strong test-retest reliability." Journal of NeuroEngineering and Rehabilitation In: , Vol. 14, No. 1, 43, 22.05.2017.
  • "Corpus Callosum Structural Integrity Is Associated with Postural Control Improvement in Persons with Multiple Sclerosis Who Have Minimal Disability." Neurorehabilitation and Neural Repair In: , Vol. 31, No. 4, 01.04.2017, p. 343-353.
  • "Impaired perception of surface tilt in progressive supranuclear palsy." PLoS One  In: , Vol. 12, No. 3, e0173351, 01.03.2017.
  • "An fMRI-compatible force measurement system for the evaluation of the neural correlates of step initiation." Scientific Reports  In: , Vol. 7, 43088, 23.02.2017.
  • "Assessment and rehabilitation of central sensory impairments for balance in mTBI using auditory biofeedback : A randomized clinical trial." BMC Neurology In: , Vol. 17, No. 1, 41, 23.02.2017.
  • "The clinical significance of freezing while turning in Parkinson's disease." Neuroscience In: , Vol. 343, 20.02.2017, p. 222-228.
  • "Recovery from multiple apas delays gait initiation in parkinson’s disease." Frontiers in Human Neuroscience In: , Vol. 11, 60, 14.02.2017.
  • "Gait initiation is impaired in subjects with Parkinson's disease in the OFF state : Evidence from the analysis of the anticipatory postural adjustments through wearable inertial sensors." Gait and Posture  In: , Vol. 51, 01.01.2017, p. 218-221.
  • "Coherence analysis of trunk and leg acceleration reveals altered postural sway strategy during standing in persons with multiple sclerosis." Human Movement Science  In: , 01.01.2017.
  • "Lipoic acid in secondary progressive MS." Neurology: Neuroimmunology and NeuroInflammation  In: , Vol. 4, No. 5, 374, 2017.
  • "Quantifying effects of age on balance and gait with inertial sensors in community-dwelling healthy adults." Experimental Gerontology In: , Vol. 85, 01.12.2016, p. 48-58.
  • "The Effect of Levodopa on Improvements in Protective Stepping in People with Parkinson's Disease." Neurorehabilitation and Neural Repair In: , Vol. 30, No. 10, 01.11.2016, p. 931-940.

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