JasonL.GerrardMDPhD

Epilepsy Surgery, Neurotrauma, Pain, Stereotactic & Functional Neurosurgery

Associate Professor of Neurosurgery & Neurobiology; Director of Functional Neurosurgery / Semmes Murphey Clinic & UTenn Health Sciences Center

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Office
6325 Humphreys Blvd
Memphis, TN 38120
Phone+1 901-522-7700

Fax+1 901-522-2600

Summary

I am very excited to join UTenn Health Sciences Center and the Semmes Murphey Clinic as an Associate Professor of Neurosurgery & Neurobiology and Director of Function Neurosurgery after spending more than a decade as the Director of Functional Neurosurgery at the Yale School of Medicine I specialize in surgical treatment for movement disorders, spasticity, epilepsy and pain. I am also a an internationally recognized expert in epilepsy surgery and neuromodulation in epilepsy. I also direct a wide range of clinical, translational and basic science research as head of the Neural Systems & Neuromodulation Laboratory of the University of Tennessee Health Sciences Center. Our research, which is funded by the NIH and several private foundations, studies the neural and network mechanisms of epilepsy and movement disorders, consciousness, the cognitive and memory effects of these disorders and the development of novel treatment options with an emphasis on novel neuromodulation approaches and brain-computer interfaces. Our translational efforts range from the studying the mechanisms of consciousness, sensory and motor processing and cognitive and behavior testing with intracranial electrode recordings.

Deep Brain Stimulation Helps Parkinson's Patients Regain Independence

Every year, approximately 60,000 people are diagnosed with Parkinson's disease. In addition, about 10 million people in the United States have essential tremor

Jason Gerrard

Dr. Jason Gerrard is a functional neurosurgeon at the Semmes Murphey Clinic with a passion for understanding and treating the brain. He received his M.D., a B.S

ESTM Webinar series: Global Epilepsy Surgery Technique Rounds

Neuromodulation procedures in refractory epilepsy

Breakthrough surgery for epilepsy patients

There's a breakthrough in surgery for epilepsy patients.

New surgery treats epilepsy with deep-brain stimulation

NEW HAVEN - Beginning today, patients with epilepsy will have a new option to reduce the number and severity of life-limiting seizures, avoiding radical surgery

New surgery treats epilepsy with deep-brain stimulation

NEW HAVEN - Beginning Monday, patients with epilepsy will have a new option to reduce the number and severity of life-limiting seizures, avoiding radical surger

Deep Brain Stimulation Helps Parkinson's Patients Regain Independence

If you or a loved one suffers from Parkinson's Disease or an essential tremor and have run through the gamut of treatments unsuccessfully, new technology called

Education & Training

Yale-New Haven HospitalFellowship, Epilepsy surgery, 2011 - 2012
Massachusetts General HospitalResidency, Neurological Surgery, 2004 - 2010
Massachusetts General HospitalFellowship, Functional Neurosurgery, 2008 - 2009
Massachusetts General HospitalInternship, Transitional Year, 2004 - 2005
University of Arizona College of MedicineClass of 2004
University of ArizonaPh.D., Neuroscience, 2002
University of ArizonaBS, Biochemistry, Honors, 1990 - 1995
University of ArizonaB.S., Major: Biochemistry; Minor: Computer Science, Magna Cum Laude, 1995

Certifications & Licensure

TN State Medical License 2023 - 2026
CT State Medical License 2012 - 2025
MA State Medical License 2009 - 2014
American Board of Neurological Surgery Neurological Surgery

Awards, Honors, & Recognition

YCCI Scholar Yale Center for Clinical Investigation
Scholarship Committee Congress of Neurological Surgeons, 2014-2015
Vanguard Leadership in Neurosurgery Fellow Congress of Neurological Surgeons, 2018
Scholar Award YCCI, 2014-2016
CMS Meaningful Use Stage 1 Certification EpicCare Ambulatory EMR, Epic Systems Corporation, 2013
Patient Safety Star Award Massachusetts General Hospital, 2010-2011
Neurosurgery Research & Education Foundation Award 2007
Outstanding Achievement in MD/PhD Program 2004
Outstanding Neurology Student of the Year Award 2004
Advocate of the Year, Graduate & Professional Student Council University of Arizona, 2001
Golden Key National Honorary University of Arizona, 1995
Phi Beta Kappa University of Arizona, 1995
M.D./Ph.D. Fellowship Award 1995
Achievement Reward for College Scientists, Award/ Scholarship (5) Arizona ARCS Chapter, 1995
Blue Key National Honorary University of Arizona, 1994
Dean�s List with Distinction Award 1992
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Publications & Presentations

PubMed

8 citations
A multicenter retrospective study of patients treated in the thalamus with responsive neurostimulation.
Madeline C Fields, Onome Eka, Cristina Schreckinger, Patricia Dugan, Wael F Asaad
Frontiers in Neurology. 2023-01-01
6 citations
Factors Predicting Outcome After Intracranial EEG Evaluation in Patients With Medically Refractory Epilepsy.
Adithya Sivaraju, Lawrence Hirsch, Nicolas Gaspard, Pue Farooque, Jason Gerrard
Neurology. 2022-07-05
2 citations
Impact of Frailty on Morbidity and Mortality in Adult Patients Undergoing Surgical Evacuation of Acute Traumatic Subdural Hematoma.
Aladine A Elsamadicy, Mani Ratnesh S Sandhu, Isaac G Freedman, Andrew B Koo, Benjamin C Reeves
World Neurosurgery. 2022-06-01

Journal Articles

Stereotactic radiosurgery for trigeminal neuralgia in patients with multiple sclerosis: a multicenter study
Z. Xu, D. Mathieu, F. Heroux, M. Abbassy, G. Barnett, A.M. Mohammadi, H. Kano, J. Caruso, H-H Shih, I.S. Grills, K. Lee, S. Krishnan, A.M. Kaufmann, J. Lee, J. Pierce,..., Neurosurgery, 1/23/2018
Seizure susceptibility and infraslow modulatory activity in the intracranial EEG
R.B. Joshi, R.B. Duckrow, I.I. Goncharova, J.L. Gerrard, D.D. Spencer, L.J. Hirsch, D.W. Godwin, H.P. Zaveri, Epilepsia, 1/6/2018
Expanding brain-computer interfaces for controlling epilepsy networks: Novel thalamic responsive neurostimulation in refractory epilepsy
A. Gummadavelli, H.P. Zaveri, D.D. Spencer, J.L. Gerrard, Frontiers in Neuroscience, 1/1/2018
Management of subdural hematomas: Part I Medical management of subdural hematomas
El. Fomchenko, E.J. Gilmore, C.C. Matouk, J.L. Gerrard, K.N. Sheth, Current Treatment Options in Neurology, 1/1/2018
Management of subdural hematomas: Part II Surgical management of subdural hematomas
El Fomchenko, E.J. Gilmore, C.C. Matouk, J.L. Gerrard, K.N. Sheth, Current Treatment Options in Neurology, 1/1/2018
Charting the road forward in psychiatric neurosurgery: Proceedings of the 2016 American Society for Stereotactic and Functional Neurosurgery Workshop on Neuromodulatio...
A.A. Bari, C.B. Mikell, A. Abosch, S. Ben-Haim, R.J. Buchanan, A.W. Burton, S. Carcieri, G.R. Cosgrove, P.-F. D'Haese, E.N. Eskandar, J.L. Gerrard, W.K. Goodman, B.D. ..., Journal of Neurology, Neurosurgery & Psychiatry, 1/1/2018
The roles of surgery and technology in understand focal epilepsy and its comorbidities
D.D. Spencer, J.L. Gerrard, H. Zaveri, Lancet Neurology, 1/1/2018
What is the pathway forward for surgical management of essential tremor?
E.D. Louis, A. Patel, J.L. Gerrard, Ann Neurol, 1/1/2017
Restoring conscious arousal during focal limbic seizures with deep brain stimulation
A.J. Kundishora, A. Gummadavelli, C. Ma, M. Liu, C. McCafferty, N.D. Schiff, J.T. Willie, R.E. Gross, J.L. Gerrard and H. Blumenfeld, Cerebral Cortex, 1/1/2016
Regional and network relationship in the intracranial EEG second spectrum
R.B. Joshi, N. Gaspard, I.I. Goncharova, R.B. Duckrow, D. Duncan, J.L. Gerrard, D.D. Spencer, L.J. Hirsch, H.P. Zaveri, Clinical Neurophysiology, 1/1/2016
Progressive change in sleep over multiple nights of intracranial EEG monitoring
R.B. Joshi, N. Gaspard, I.I. Goncharova, M. Pavlova, R.B. Duckrow, J.L. Gerrard, D.D. Spencer, L.J. Hirsch, H.P. Zaveri, Clinical Neurophysiology, 1/1/2016
Delta rhythm in wakefulness: evidence from intracranial recordings in human beings
R. Sachdev, N. Gaspard, J.L. Gerrard, L.J. Hirsch, D.D. Spencer, and H.P. Zaveri, Journal of Neurophysiology, 1/1/2015
Gamma knife stereotactic radiosurgical thalamotomy for intractable tremor: A systematic review of the literature
A.M. Campbell, J. Glover, V.L.S. Chiang, J.L. Gerrard, J.B. Yu, Radiotherapy and Oncology, 1/1/2015
Neurostimulation to improving level of consciousness in epilepsy
A. Gummadavelli, A.J. Kundishora, J.T. Willie, J.P. Andrews, J.L. Gerrard, D.D. Spencer, H. Blumenfeld, Neurosurgical Focus, 1/1/2015
Anesthesia for Deep Brain Stimulation (DBS): A Review
R. Grant, S.E. Gruenbaum, J.L. Gerrard, Current Opinion in Anesthesiology, 1/1/2015
Sharp wave ripples during visual exploration in the primate hippocampus
T.K. Leonard, J.M. Mikkila, E.N. Eskandar, J.L. Gerrard, D. Kaping, S.R. Patel, T. Womelsdorf, K.L. Hoffman, Journal of Neuroscience, 1/1/2015
Hemifacial spasm and neurovascular compression
A.Y. Lu, J.T. Yeung, J.L. Gerrard, E.M. Michaelides, R.F. Sekula Jr., K.R. Bulsara, Scientific World Journal, 1/1/2014
Studying task-related activity of individual neurons in the human brain
S.R. Patel, S.A. Sheth, C. Martinez-Rubio, M. Mian, W. Asaad, J.L. Gerrard, D. Dougherty, A. Flaherty, B. Greenberg, J. Gale, Z. Williams, E.N. Eskandar, Nature Protocols, 1/1/2013
Seizure control with intracranial arteriovenous malformations is directly related to treatment modality: A meta-analysis
J.F. Baranoski, R.A. Grant, L.J. Hirsch, J.L. Gerrard, M. Gunel, C.M. Matouk, K.R. Bulsara, J Neurointerv Surg, 1/1/2013
7T MR Spectroscopic imaging in the localization of surgical epilepsy
J.W. Pan, R.B. Duckrow, J.L. Gerrard, C. Ong, L.J. Hirsch, S.R.Resor Jr., Y. Zhang, O. Petroff, S. Spencer, H.P. Hetherington, D.D. Spencer, Epilepsia, 1/1/2013
Unexpected recovery of function after severe traumatic brain injury: The limits of early neuroimaging-based outcome prediction
B.L. Edlow, J.T. Giacino, R.E. Hirschberg, J.L. Gerrard, O. Wu, L.R. Hochberg, Neurocritical Care, 1/1/2013
Surgical treatment of a large fusiform distal anerior cerebral artery aneurysm with in situ end-to-side A3-A3 bypass graft and aneurysm trapping: Case report and revie...
G.P. Dunn, J.L. Gerrard, D.H. Jho and C.S. Ogilvy, Neurosurgery, 1/1/2011
Microsurgical retrieval of an endovascular microcatheter trapped during onyx embolization of a cerebral arteriovenous malformation
B.P. Walcott, J.L. Gerrard, R.G. Nogiera, B.V. Nahed, A.R. Terry and C.S. Ogilvy, Journal of NeuroInterventional Surgery, 1/1/2010
Sequence reactivation in the hippocampus is impaired in aged rats
J.L. Gerrard, S. N. Burke, B.L. McNaughton, and C.A. Barnes, Journal of Neuroscience, 1/1/2008
Independence of firing correlates of anatomically proximate hippocampal pyramidal cells
A. David Redish, F.P. Battaglia, M.K. Chawla, A.D. Ekstrom, J.L. Gerrard, P. Lipa, E.S. Rosenzweig, P.F. Worley, J.F. Guzowski, B.L. McNaughton and C.A. Barnes, Journal of Neuroscience, 1/1/2001
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Books/Book Chapters

Deep Brain Stimulation: Techniques and Practice.
Chapter: Deep Brain Stimulation for Essential Tremor.
J. Yowtak, A. Gummadavelli, D. Cooke, J.L. GerrardEditors: W.S. Anderson.Thieme, New York, NY2018
Intraoperative Neurophysiology: A comprehensive guide to monitoring and mapping
Chapter: Electrocorticography.
Page 95 - 130M.V. Simon, J.L. Gerrard, E.N. EskandarEditors: M.V. Simon.Demos Medical Publishing, New York, NY2009
Sleep and Brain Plasticity
Chapter: Off-line reprocessing of recent memory and its role in memory consolidation: A progress report.
Page 225 - 246B.L. McNaughton, C.A. Barnes, F.P. Battaglia, M.R. Bower, S.L. Cowen, A.D. Ekstrom, J.L. Gerrard, K.L. Hoffman, F.P. Houston, Y. Karten, P. Lipa, C.M.A. Pennartz and G...Editors: P. Maquet, C. Smith and R. Stickgold.Oxford University Press, Oxford, England2003

Abstracts/Posters

Intracranial markers of loss of consciousness in fronal lobe seizures.
R. Gebre, M. Dhakar, E. Grover, I. Quraishi, E. Sternberg, I. George, A. Sivaraju, J. Bonito, H. Zaveri, L. Gober, S. Ahammad, S. Ghoshal, P. Faroque, L. Hirsch, D. Sp..., American Epilepsy Society Annual Meeting, Houston, TX, 1/1/2016
Dual-Site pontine and thalamic neurostimulation to improve ictal and postictal arousal: assessment of its effect with a behavioral task.
M. Galardi, J. Xu, E. Musonza, J. Pok, J. Osteen, T. Liao, A. Kundishora, A. Gummadavelli, L. Feng, C. McCafferty, J. Gerrard, M. Laubach, H. Blumenfeld, American Epilepsy Society Annual Meeting, Houston, TX, 1/1/2016
Human ventral striatum neurons encode reward expectation.
S.A. Sheth, C. Camargo, J. Gale, M.K. Mian, S.R. Patel, J.L. Gerrard, D. Dougherty, E.N. Eskandar, 78th Annual Meeting of the American Association of Neurological Surgeons, Philadelphia, PA, 1/1/2010
Trends in laminectomy for excision of herniated intervertebral disc: Population based estimates from the US Nationwide Inpatient Sample.
B.P. Walcott, B.W. Hanak, B.V. Nahed, J.L. Gerrard, J.V. Coumans, Proceedings of the Congress of Neurological Surgeons Annual Meeting, San Francisco, CA, 1/1/2010
The Modulation of Human Nucleus Accumbens Activity During Goal Oriented Behavior
J.L. Gerrard, J.T.Gale, F.A. Jain, E.N. Eskandar, Proceedings of the 77th Annual Meeting of the American Association of Neurological Surgeons, San Diego, CA, 1/2/2009
Reactivation of hippocampal neural ensemble patterns is NMDA dependent.
J.J. Stanis, J.A. Dees, J.L. Gerrard, P. Lipa, S.R. VanRoads, B.L. McNaughton, C.A. Barnes, Society for Neuroscience Abstracts, 1/1/2004
Reactivation of activity of neural ensembles during sleep in the rat hippocampus is not affected by positive or negative events during waking.
Y.J. Karten, S.L. Cowen, E.R. Lindstedt, H.S. Kudrimoti, J.L. Gerrard, B.L. McNaughton, C.A. Barnes, Society for Neuroscience Abstracts, 1/1/2002
Dissociation of pattern and sequence reactivation efficiency in the aged rat hippocampus.
J.L. Gerrard, H.K. Kudrimoti, S.L. Cowen, A.D. Redish, E.S. Rosenzweig, C.A. Barnes,, Society for Neuroscience Abstracts, 1/1/2002
A long days' journey into night.
J.L. Gerrard, M.R. Bower, N. Insel, C.A. Barnes, B.L. McNaughton, Society for Neuroscience Abstracts, 1/1/2001
Three measures of neural ensemble reactivation in the hippocampus fail to reflect reward probabilities present in a familiar task.
S.L. Cowen, H.S. Kudrimoti, J.L. Gerrard, B.L. McNaughton, C.A. Barnes, Society for Neuroscience Abstracts, 1/1/2000
Equivalent reactivation of hippocampal memory traces for a novel experience in young adult and aged rats.
J.L. Gerrard, S.L. Cowen, H.S. Kudrimoti, E.S. Rosenzweig, A.D. Redish, C.A. Barnes, B.L. McNaughton, Society for Neuroscience Abstracts, 1/1/2000
Hippocampal pyramidal cells located near each other anatomically do not show related spatial firing correlates.
A.D. Redish, F.P. Battaglia, A.D. Ekstrom, J.L. Gerrard, P. Lipa, E.S. Rosenzweig, B.L. McNaughton, C.A. Barnes, Society for Neuroscience Abstracts, 1/1/2000
Altered firing characteristics of CA1 pyramidal cells during sleep in old rats.
A.C. Smith, J.L. Gerrard, C.A. Barnes, B.L. McNaughton, Society for Neuroscience Abstracts, 1/1/2000
Effects of aging on dynamics of hippocampal memory reactivation during sharp-waves.
J.L. Gerrard, H.S. Kudrimoti, C.A. Barnes, B.L. McNaughton, Society for Neuroscience Abstracts, 1/1/1998
REM sleep and the reactivation of recent correlation patterns in hippocampal neuronal ensembles.
H.S. Kudrimoti, W.E. Skaggs, C.A. Barnes, B.L. McNaughton, J.L. Gerrard, M.S. Suster, K.L. Weaver, Society for Neuroscience Abstracts, 1/1/1996
Interaction between hippocampus and neocortex in the replay of temporal sequences during sleep.
Y-L Qin, B.L. McNaughton, W.F. Skaggs, C.A. Barnes, M.S. Suster, K.L. Weaver, J.L. Gerrard, Society for Neuroscience Abstracts, 1/1/1996
Multistability of spatial representation during aging.
M.S. Suster, B.L. McNaughton, C.A. Barnes, W.E. Skaggs, K.L. Weaver, J.L. Gerrard, H.S. Kudrimoti, Society for Neuroscience Abstracts, 1/1/1996
Rapid changes in the hippocampal population code during behavior: A case for Hebbian learning in vivo.
M.R. Metha, B.L. McNaughton, C.A. Barnes, M.S. Suster, K.L. Weaver, J.L. Gerrard, Society for Neuroscience Abstracts, 1/1/1996
Theta phase precession in hippocampal pyramidal cells does not depend on visual input.
K.L. Weaver, J. Shen, B.L. McNaughton, C.A. Barnes, W.E. Skaggs, M.S. Suster, J.L. Gerrard, Society for Neuroscience Abstracts, 1/1/1996
Reactivation of hippocampal correlation states during post-behavior sleep is impaired in aged F-344 rats.
J.L. Gerrard, H.S. Kudrimoti, C.A. Barnes, B.L. McNaughton, M.S. Suster, K.L. Weaver, Society for Neuroscience Abstracts, 1/1/1996
Effects of age on theta rhythm and theta phase precession in hippocampal neuronal populations.
J. Shen, C.A. Barnes, B.L. McNaughton, W.E. Skaggs, M.S. Suster, K.L. Weaver, J.L. Gerrard, Society for Neuroscience Abstracts, 1/1/1996
Place cell theta phase firing profile differences from maze running to REM sleep: familiar vs. novel place fields.
G.R. Poe, B.L. McNaughton, C.A. Barnes, M.S. Suster, K.L. Weaver and J.L. Gerrard, Society for Neuroscience Abstracts, 1/1/1996
Accuracy of hippocampal place fields in predicting location is enhanced in the presence of theta rhythm.
J.L. Gerrard, I. Ginzburg, C.A. Barnes, T.J. Sejnowski, B.L. McNaughton, Society for Neuroscience Abstracts, 1/1/1995
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Lectures

Concepts in Closed Loop Stimulation and Novel, Patient-Customized Targeting Strategies, Neuromodulation for Advanced Implantable Therapies: A Hands-On Cadaver Course f...
Las Vegas, NV - 1/17/2019
Neural Networks in Epilepsy: The Evolving Role of Surgery and Technology in Epilepsy Treatment.
George Washington University, Washington, DC - 1/13/2018
Targeting Neural Networks for the Treatment of Epilepsy.
Philadelphia, PA - 1/3/2018
Expanding Brain-Computer Interfaces for Controlling Epilepsy Networks: Novel Thalamic Responsive Stimulation in Refractory Epilepsy.
New Orleans, LA - 1/2/2018
Sleep quality is not affected by post-seizure latency in the methioinine sulfoximinie model of epilepsy.
San Diego, CA - 1/1/2018
Relationship between stimulus opacity and intracranial broadband gamma power in a conscious visual perception task.
San Diego, CA - 1/1/2018
Temporal lobectomy for refractory epilepsy: outcomes and predictors of seizure recurrence.
Vienna, Austria - 1/1/2018
Neurostimulation and neural networks in epilepsy: the evolving role of epilepsy surgery and technology in redefining and treating the epilepsies.
Vienna, Austria - 1/1/2018
Intracranial EEG topography of neural networks with transient and sustained shifts in attention.
San Diego, CA - 1/1/2018
Investigating auditory conscious perception with a threshold task and intracranial EEG.
San Diego, CA - 1/1/2018
Intracranial hemorrhage rates following MER and iMRI guided deep brain stimulation surgery.
Denver, CO - 1/1/2018
Management of Head Trauma
Yale School of Medicine - 1/1/2018
Long-Term seizure freedom following intracranial monitoring without resection.
New Orleans, LA - 1/1/2018
Thalamic Functional Anatomy, Tremor Mechanisms and Neuromodulation
1/1/2018
Functional Anatomy of Basal Ganglia in Movement Disorders
1/1/2018
Epilepsy
1/1/2018
The evolution of combined depth, strip and grid (CIEEG) intracranial studies.
New Orleans, LA - 1/1/2018
Targeting Neural Networks in Functional Neurosurgery
1/1/2018
Behavioral assessment of intralaminar thalamic neurostimulation to improve consciousness during the postictal period of seizures.
Washington, DC - 1/1/2017
Expanding Indications for Neuromodulation.
1/1/2017
Update on Surgical Treatments for Parkinson's Disease.
1/1/2017
Treatment of Traumatic Head Injury
Yale New Haven Hospital, 2016, 2017 - 1/1/2017
Neural Networks, Epilepsy & Modulation
Brown University, Providence, RI - 1/1/2017
The local functional connectivity of the seizure onset and peri-seizure onset areas.
Washington, DC - 1/1/2017
Impaired consciousness in frontal lobe seizures: Quantitative analysis of intracranial electroencephalography.
Washington, DC - 1/1/2017
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Other

Dissertation: Reactivation of hippocampal ensemble activity patterns in the aging rat: Insights into memory consolidation within the aged brain
Gerrard JL
University of Arizona - 1/1/2002