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Santosh Helekar, MD, PhD

Associate Professor of Neurology, Institute for Academic Medicine
Associate Member, Research Institute
Associate Research Professor, Weill Cornell Medical College
Houston Methodist
Weill Cornell Medical College


Neurophysiology and Neuromodulation Lab


Biography

Dr. Santosh A. Helekar earned his medical degree (Bachelor of Medicine and Bachelor of Surgery) from the University of Bombay in 1982. He earned a Ph.D. in Neuroscience from Baylor College of Medicine. He held faculty appointments in the Departments of Neurology and Neuroscience at Baylor College of Medicine, Department of Neurology at The Methodist Hospital Research Institute and Weill Medical College (WMC) of Cornell University before rejoining as an associate member of The Methodist Hospital Research Institute in 2007. Dr. Helekar also holds an adjunct faculty appointment in the Department of Biology at Texas A & M University. As a member of the Research Institute Neurosciences Research Program, he directs the Neurophysiology and Neuromodulation Laboratory in the Speech and Language Center of the Department of Neurology, where he conducts neuroscientific research on stuttering, chronic ischemic stroke, motor control, and conscious perception using neuroimaging and magnetic brain stimulation with a new portable wearable device developed by him and Dr. Henning Voss of WMC. He also collaborates with other members of the Research Institute on functional magnetic resonance imaging studies of neurological conditions. Dr. Helekar has been a member of the National Institutes of Health, National Science Foundation, Department of Defense and Alzheimer's Association grant review boards. He has also been an E-print editor of Association for the Scientific Study of Consciousness, and a reviewer for several international research foundations and scientific journals in his fields of interest. He serves on the editorial board of The Open Zoology Journal.

Description of Research

Dr. Helekar's current research program focuses on the development and refinement of multifocal magnetic brain stimulation using a new portable wearable device called Transcranial Rotating Permanent Magnet Stimulator (TRPMS) invented by him and Dr. Henning Voss of Weill Medical College of Cornell University. Ongoing projects in his laboratory involve studying the effects of TRPMS stimulation using brain functional magnetic resonance imaging, positron emission tomography and electrophysiological approaches for application in basic neuroscience research and neuromodulatory therapy in neurobehavioral disorders, including stuttering and chronic ischemic stroke. He is also interested in quantitative functional network-based analysis and theoretical research related to neural processes underlying conscious perception.

Areas Of Expertise

Vocal learning Speech and language disorders fMRI Conscious perception Neurophysiology Neuromodulation Motor control
Education & Training

, Baylor College of Medicine
Publications

Repeated Bilateral Multifocal Cortical Magnetic Stimulation with a New Wearable Transcranial Stimulator in Chronic Ischemic Stroke
Helekar, S, John, B, Laredo, R, Card, C, McCane, CD, Clearman, RR & Chiu, D 2017, International Stroke Conference 2017, Houston, United States, 2/22/17 - 2/24/17, .

Bidirectional modulation of episodic memory for words by repeated focal stimulation of Broca’s area using a new wearable magnetic brain stimulator
Helekar, S, Alcazar-Felix, R, John, B & Voss, HU 2016, Neuroscience 2016 Annual Meeting of the Society for Neuroscience, San Diego, CA, United States, 11/12/16 - 11/16/16, .

Method and apparatus for providing transcranial magnetic stimulation (TMS) to a patient
Helekar, S & Voss, HU 2016, , Patent No. US9456784B2.

QualiaHat - A Wearable Multifocal Transcranial Magnetic Stimulator to Modulate Neural Correlates of Consciousness in Cortical Networks
Helekar, S, John, B & Voss, HU 2016, 20th Annual Meeting of the Association for the Scientific Study of Consciousness, Buenos Aires, Argentina, 6/15/16 - 6/18/16, .

Transcranial Brain Stimulation with Rapidly Spinning High-Field Permanent Magnets
Helekar, SA & Voss, HU 2016, IEEE Access, vol 4, 7473846, pp. 2520-2528. DOI:

Changes in functional connectivity between speech-specific cortical regions in develomental stuttering
Helekar, S , Rosenfield, DB & John, B 2015, 140th Annual Meeting of American Neurological Association, Chicago, United States, 9/27/15 - 9/29/15, .

Social context stimulates song imitation choice in the zebra finch via dopaminergic control
Helekar, S 2014, Neuroscience 2014 - Annual Meeting of the Society for Neuroscience, Washington, United States, 11/15/14 - 11/19/14, .

Preface
Helekar, SA 2013, Unknown Journal, pp. v-vii. DOI:

Animal models of speech and language disorders
Helekar, SA 2013, . Springer New York. DOI:

Stuttered birdsong
Helekar, SA, Salgado-Commissariat, D, Rosenfield, DB & Voss, HU 2013, . in Animal Models of Speech and Language Disorders. Springer New York, pp. 185-208. DOI:

Electromyographic motor-evoked potentials elicited by transcranial magnetic stimulation with rapidly moving permanent magnets mounted on a multisite stimulator cap
Helekar, S 2013, Neuroscience 2013 - Annual Meeting of the Society for Neuroscience, San Diego, United States, 11/9/13 - 11/13/13, .

Local field responses to audiovisual stimuli in visual and auditory areas wirelessly recorded in freely moving zebra finches
Helekar, S 2013, Neuroscience 2013 - Annual Meeting of the Society for Neuroscience, San Diego, United States, 11/9/13 - 11/13/13, .

Auditory representation of social meaning of communicative signals in the songbird brain
Helekar, S 2013, Neuroscience 2013 - Annual Meeting of the Society for Neuroscience, San Diego, United States, 11/9/13 - 11/13/13, .

Functional cortical biomarkers of audiovisual speech processing in developmental stuttering
Helekar, S 2013, 138th Annual Meeting of the American Neurological Association, New Orleans, United States, 10/13/13 - 10/15/13, .

Functional brain networks are affected by tobacco abstinence in humans: implications for tobacco addiction
Helekar, S 2012, Neuroscience 2012 - Annual Meeting of the Society for Neuroscience, New Orleans, United States, 10/13/12 - 10/17/12, .

Increased selective activation of visual motion-sensitive area in trained pianists in response to musical gestures
Helekar, S 2012, Neuroscience 2012 - Annual Meeting of the Society for Neuroscience, New Orleans, United States, 10/13/12 - 10/17/12, .

In-vivo imaging of the songbird dopaminergic system
Helekar, S 2012, Neuroscience 2012 - Annual Meeting of the Society for Neuroscience, New Orleans, United States, 10/13/12 - 10/17/12, .

Functional MRI data-driven delineation of functionally equivalent brain regions reveal significant group differences
Helekar, S 2011, Neuroscience 2011 - Annual Meeting of the Society for Neuroscience, Washington, United States, 11/12/11 - 11/16/11, .

Activation of Cross-modal and Multimodal Brain Areas in Musical Cognition
Helekar, S 2011, 8th IBRO World Congress of Neuroscience, Florence, Italy, 7/14/11 - 7/18/11, .

Altered auditory BOLD response to conspecific birdsong in zebra finches with stuttered syllables
Voss, HU, Salgado-Commissariat, D & Helekar, SA 2010, PLoS ONE, vol 5, no. 12, e14415. DOI: