Gammon M. Earhart, Ph.D., P.T.

Professor
Physical Therapy
Neuroscience
Neurology

Neurosciences Program

  • 314-286-1407

  • 314-286-1478

  • 314-286-1410

  • 8502

  • 4444 Forest Park Blvd., Campus Box 8502, Room B115

  • earhartg@wustl.edu

  • https://pt.wustl.edu/faculty-staff/faculty/gammon-m-earhart-pt-phd/

  • adaptation, locomotion, Parkinson disease, motor control, movement, neurodegeneration, neuroimaging, neurorehabilitation

  • Neural Control of Movement in Health and Disease

Research Abstract:

We employ kinematic, kinetic, electromyographic, videooculographic and neuroimaging techniques to study the neural control of movement. Our work focuses primarily on individuals with movement disorders, with a particular emphasis on Parkinson disease (PD). Major lines of research in the laboratory focus on:
1) Mechanisms underlying gait impairments, such as difficulty turning and freezing, experienced by individuals with PD
2) Adaptive control of locomotion in response to novel stimuli and training paradigms
3) Effects of exercise interventions, such as dance and treadmill training, on body and brain function in PD
4) Effectiveness and side effects of deep brain stimulation to treat movement disorders
5) Natural history of disease progression in PD
6) Relationships between oculomotor and locomotor control.

Selected Publications:

Peterson, D.S., Pickett, K.A., Duncan, R.P., Perlmutter, J.S., Earhart, G.M. (2014) Brain activity during complex gait tasks in Parkinson disease. Clin Neurophysiol, 125(5):995-1005. PMC3981914

Peterson, D.S., Pickett, K.A., Duncan, R.P., Perlmutter, J.S., Earhart, G.M. (2014) Gait-related brain activity in people with Parkinson disease with freezing of gait. PloS One, 9(3):e90634. PMC3940915

Duncan, R.P., Earhart, G.M. (2014) Are the Effects of Community-Based Dance on Parkinson Disease Severity, Balance, and Functional Mobility Reduced with Time? A 2-year Prospective Pilot Study. J Altern Complement Med,20(10):757-763.

Duncan, R.P., Leddy, A.L., Cavanaugh, J.T., Dibble, L.E., Ellis, T. D., Ford, M.P., Foreman K.B., Earhart, G.M. (2015) Detecting and Predicting Balance Decline in Parkinson Disease: a Prospective Cohort Study. Journal of Parkinson’s Disease, in press.

Cavanaugh, J.T., Ellis, T.D., Earhart, G.M., Ford, M.P., Foreman, K.B., Dibble, L.E. (2015) Toward understanding ambulatory activity decline in Parkinson disease. Phys Ther, in press.

Earhart, G.M., Duncan, R.P, Huang, J.L., Perlmutter, J.S., Pickett, K.A. (2015) Comparing Interventions and Exploring Neural Mechanisms of Exercise and Parkinson Disease: A Study Protocol for a Randomized Controlled Trial, BMC Neurol, in press.

McNeely, M.E., Duncan, R.P., Earhart, G.M. (2015) A Comparison of Dance Interventions in People with Parkinson Disease and Older Adults. Maturitas,in press.

Duncan, R.P., Cavanaugh, J.T., Earhart, G.M., Ellis, T.D., Ford, M.P., Foreman, K.B., Leddy, A.L., Paul, S.S., Canning, C.G., Thackeray, A., Dibble, L.E. (2015) External Validation of a Simple Clinical Tool Peterson, D.S., Pickett, K.A., Duncan, R.P., Perlmutter, J.S., Earhart, G.M. (2014) Brain activity during complex gait tasks in Parkinson disease. Clin Neurophysiol, 125(5):995-1005. PMC3981914

Peterson, D.S., Pickett, K.A., Duncan, R.P., Perlmutter, J.S., Earhart, G.M. (2014) Gait-related brain activity in people with Parkinson disease with freezing of gait. PloS One, 9(3):e90634. PMC3940915

Duncan, R.P., Earhart, G.M. (2014) Are the Effects of Community-Based Dance on Parkinson Disease Severity, Balance, and Functional Mobility Reduced with Time? A 2-year Prospective Pilot Study. J Altern Complement Med, 20(10):757-763.

Nemanich, S.T., Earhart, G.M. (2015) Prism adaptation in Parkinson disease: Comparing reaching to walking and freezers to non-freezers. Exp Brain Res, 233(8):2301-2310. PMC4513667

Duncan, R.P., Leddy, A.L., Cavanaugh, J.T., Dibble, L.E., Ellis, T. D., Ford, M.P., Foreman K.B., Earhart, G.M. (2015) Balance Differences in People with Parkinson Disease with and without Freezing of Gait, Gait and Posture, 42(3):306-309. PMC4591177

Earhart, G.M., Duncan, R.P, Huang, J.L., Perlmutter, J.S., Pickett, K.A. (2015) Comparing Interventions and Exploring Neural Mechanisms of Exercise and Parkinson Disease: A Study Protocol for a Randomized Controlled Trial, BMC Neurol, 15:9. PMC4326476

Duncan, R.P., Leddy, A.L., Cavanaugh, J.T., Dibble, L.E., Ellis, T. D., Ford, M.P., Foreman K.B., Earhart, G.M. (2015) Detecting and Predicting Balance Decline in Parkinson Disease: a Prospective Cohort Study. Journal of Parkinson’s Disease, 5(1):131-139.

Nemanich, S.T., Earhart, G.M. (2016) Reduced after-effects following podokinetic adaptation in people with Parkinson`s disease and freezing of gait. Parkinsonism Relat Disord, 22: 93-97. PMC4695217

Jacobs, J.V., Earhart, G.M., McNeely, M.E. (2016) Can postural instability tests improve predicted future falls in people with Parkinson’s disease beyond knowing existing fall history? J Neurol, 263(1):133-139.

Nemanich, S.T., Earhart, G.M. (2016) Freezing of gait is associated with increased saccade latency and variability in Parkinson`s disease. Clin Neurophysiol, 127(6): 2394-2401. PMC4867191




Last Updated: 8/24/2016 3:08:23 PM

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