Movement Disorders Laboratory Members
Helen M. Bronte-Stewart, MD, MSE
The John E. Cahill Professor,
Department of Neurology and Neurological Sciences
Professor, Neurology and Neurological Sciences
Director Stanford Movement Disorders Center
Director Stanford Human Motor Control and Balance Laboratory
Dr. Helen Bronte-Stewart is the John E Cahill Family Professor in the department of Neurology and Neurological Sciences. She is a neurologist, neurophysiologist and movement disorders specialist, who has used her training in mathematics and physics, bioengineering, neurology, movement disorders, and single unit electrophysiology in primates to develop a rigorous translational program in motor control research in human subjects with movement disorders. Dr. Bronte-Stewart is the Director of the Stanford Comprehensive Movement Disorders Center, the Co-Director of the Stanford Balance Center, and the Division Chief of Movement Disorders in the department of Neurology and Neurological Sciences. She directs the Stanford Human Motor Control and Balance Laboratory, where she has developed computerized, quantitative measurements of motor behavior, which are being implemented in a wide range of Movement Disorders. Her research investigates the brain’s contribution to abnormal movement in human subjects, using synchronous brain recordings and quantitative kinematics, and how these are modulated with different frequencies and patterns of neurostimulation. Dr. Bronte-Stewart’s team was the first in the United States to implant a sensing neurostimulator, from which they can record brain signals directly, and use the patient’s own neural activity to drive the first closed loop neurostimulation studies in Parkinson’s disease. This work has led to the first multicenter national clinical trial in closed loop deep brain stimulation for people with Parkinson’s disease, which Dr. Bronte-Stewart will lead. Dr. Bronte-Stewart's passion for understanding how the brain controls movement comes from a background in classical and modern dance.
Thomas Prieto, PhD
Dr. Prieto received a B.S. in Electrical Engineering from the University of Missouri at Columbia and a Ph.D. in Biomedical Engineering from Marquette University. He was Associate Professor of Neurology at the Medical College of Wisconsin before coming to Stanford Healthcare in 2014. He provides technical support for the autonomic testing lab and for the deep brain stimulation surgeries for movement disorders. His primary interests are in instrumentation and signal processing methods for the evaluation of autonomic and movement disorders.
Ross Anderson, PhD
Ross graduated from Case Western Reserve University in Cleveland Ohio in 2007 with a B.S. in Physics (with a concentration in Biophysics) and a minor in Mathematics. He followed on to complete his Ph.D. in the Physiology and Biophysics department at CWRU in 2014 in the laboratory of Dr. Ben Strowbridge studying the role of subthreshold oscillations and persistent activity in the rodent hippocampus, a region of the brain thought to be responsible for short term memory and spatial navigation. He then did postdoctoral research in the laboratory of Dr. Cameron McIntyre developing computational models of evoked activity in the motor cortex in response to deep brain stimulation and now is excited to be moving full circle as an electrophysiologist to be developing new technology and therapeutic biomarkers for the treatment of Parkinson's Disease through deep brain stimulation. Outside of the lab, Ross enjoys the great Bay Area outdoors through swimming, running, biking and hiking as well as tinkering with model steam engines, amateur electrics, and printed circuit boards.
Matthew Petrucci, PhD
Matt obtained a MS in mechanical engineering and PhD in neuroscience from the University of Illinois at Urbana-Champaign, and a BS/BA in mechanical engineering from the University of San Diego. His dissertation research primarily focused on improving gait initiation in people with Parkinson’s disease (PD) and freezing of gait (FOG) using a powered ankle foot orthosis. During his graduate career, he also worked on projects that examined the application of a powered ankle foot orthosis for gait assistance in persons with multiple sclerosis and perception vs. action coupling in firefighters wearing protective gear. He was awarded a MnDRIVE Neuromodulation Postdoctoral Fellowship in 2016 to develop quantitative measures of the mechanical and neurophysiological components of rigidity in PD. In 2017, he was awarded the Parkinson’s Study Group Mentored Clinical Research Award to evaluate an automated closed-looped algorithm to rapidly optimize deep brain stimulation settings for people with PD.
Outside of lab, Matt is a sports enthusiast who enjoys baseball, golf, rock climbing, hiking, and all things outdoors. He also enjoys playing the guitar and piano.
Johanna O’Day, MS
Johanna received her M.S. in Bioengineering from Stanford University in 2017. She hails from Boston, and has a B.S. in Biochemistry from her first alma mater, Boston College. She did research for two years in a Chemical Biology laboratory, and completed an independent research project in Neuroscience as an undergraduate at Boston College. At Stanford, she is working to better understand the biomechanical and neural mechanisms underlying pathological movement. Outside of the lab, Johanna can be found ascending rock walls with friends, running, writing, hiking and swimming.
Jordan Parker, BA
Jordan graduated Phi Beta Kappa from Stanford University in 2018 with a B.A. in Psychology and minors in Spanish and African and African American Studies. During her time at Stanford, she worked closely with the Bronte-Stewart Lab as a research assistant during the summers of 2016 and 2017. As a Bio-X fellow in the Bronte-Stewart Lab, Jordan studied the effect of augmented reality on gait in Parkinson’s Disease and put her heart into working with the Dance for PD program in various locations in the Bay Area. Outside of the classroom, Jordan enjoys philanthropy, shopping, and spending time with family and friends. Jordan joined the Bronte-Stewart Lab in the fall of 2018 and hopes to eventually pursue her Ph.D. in Psychology. She aspires to research disparate health outcomes in neurology and psychiatry for women of color.
Yasmine graduated from UC Berkeley with a B.S. in Bioengineering, concentrating in medical devices. She did research in both a biomechanics laboratory, where she focused on computational modeling of calcification of the aortic valve, as well as a bioelectronics laboratory, where she worked on design of an implantable oxygen sensor. She was also closely involved with the Biomedical Engineering Society and the Cal Women's Swimming and Diving Team. Her future goals involve building and optimizing wearable and implantable health technologies targeting a variety of physiological systems. At Stanford, she hopes to use her engineering perspective in better understanding neural and kinematic mechanisms pertaining to Parkinson's Disease. Outside of school, Yasmine enjoys swimming, running, climbing, and visiting local coffee and ice cream shops.
Morgan Berlin graduated in 2019 from Pomona College. As a neuroscience major she devoted four years to the Catherine Reed Cognitive Neuroscience lab at Claremont McKenna College and studied facial processing and executive functioning in older and younger populations using Electrophysiology. Morgan joined the Bronte-Stewart lab in the summer of 2019 and looks forward to continue working with EEG to investigate Parkinson’s disease. When she is not in a lab coat, Morgan enjoys performing in plays, exploring Joshua Tree, going to concerts, and hosting “wine and cheese” dinner parties with her friends.
Bruce C. Hill, PhD