His research areas are focused on the interpretation of neural signals and the communication between brain areas, particularly to produce movement and somatosensation. He spent a dedicated research year under an NIH grant at CalTech, working on brain computer interface, where the human brain interfaces directly with machines to restore motor and sensory function to paralyzed individuals, and went on to continue this type of work at Stanford. He is currently collaborating to develop a brain computer interface program at CU.
Publications
Chee K, Hirt L, Mendlen M, Machnik J, Razmara A, Bayman E, Thompson JA, Kramer DR. Brain Shift during Staged Deep Brain Stimulation for Movement Disorders. Stereotact Funct Neurosurg. 2024 Jan 29;:1-10. [Epub ahead of print] PubMed PMID: 38286119
Lamorie-Foote K, Kramer DR, Sundaram S, Cavaleri J, Gilbert ZD, Tang AM, Bashford L, Liu CY, Kellis S, Lee B. Primary somatosensory cortex organization for engineering artificial somatosensation. Neurosci Res. 2024 Jan 24. [Epub ahead of print] PubMed PMID: 38278220
Thompson JA, Hirt L, David-Gerecht P, Fasano A, Kramer DR, Ojemann SG, Kern DS. Comparison of Monopolar Review to Fixed Parameter Fractionation in Deep Brain Stimulation. Mov Disord Clin Pract. 2023 Jun;10(6):987-991. PubMed PMID: 37332654
Radcliffe EM, Baumgartner AJ, Kern DS, Al Borno M, Ojemann S, Kramer DR, Thompson JA. Oscillatory beta dynamics inform biomarker-driven treatment optimization for Parkinson's disease. J Neurophysiol. 2023 Jun 1;129(6):1492-1504. PubMed PMID: 37198135
Chee K, Razmara A, Geller AS, Harris WB, Restrepo D, Thompson JA, Kramer DR. Corrigendum: The role of the piriform cortex in temporal lobe epilepsy: A current literature review. Front Neurol. 2023;14:1148230. PubMed PMID: 36908616
Lewis S, Radcliffe E, Ojemann S, Kramer DR, Hirt L, Case M, Holt-Becker AB, Raike R, Kern DS, Thompson JA. Pilot Study to Investigate the Use of In-Clinic Sensing to Identify Optimal Stimulation Parameters for Deep Brain Stimulation Therapy in Parkinson's Disease. Neuromodulation. 2023 Feb 14. [Epub ahead of print] PubMed PMID: 36797194
Tekriwal A, Baker S, Christensen E, Petersen-Jones H, Tien RN, Ojemann SG, Kern DS, Kramer DR, Felsen G, Thompson JA. Quantifying neuro-motor correlations during awake deep brain stimulation surgery using markerless tracking. Sci Rep. 2022 Oct 27;12(1):18120. PubMed PMID: 36302865
Baker S, Tekriwal A, Felsen G, Christensen E, Hirt L, Ojemann SG, Kramer DR, Kern DS, Thompson JA. Automatic extraction of upper-limb kinematic activity using deep learning-based markerless tracking during deep brain stimulation implantation for Parkinson's disease: A proof of concept study. PLoS One. 2022;17(10):e0275490. PubMed PMID: 36264986
Kern D, Korsmo M, Baumgartner AJ, Kramer D, Ojemann S, Case M, Holt-Becker AB, Raike R, Thompson JA. Methylphenidate effects on a clinically informative oscillatory signal within the subthalamic nucleus in Parkinson's disease during deep brain stimulation programming. Brain Stimul. 2022 May-Jun;15(3):747-749. PubMed PMID: 35526817
Hirt L, Kern DS, Ojemann S, Grassia F, Kramer D, Thompson JA. Use of Three-Dimensional Printed Brain Models During Deep Brain Stimulation Surgery Consultation for Patient Health Literacy: A Randomized Controlled Investigation. World Neurosurg. 2022 Jun;162:e526-e533. PubMed PMID: 35306197
Razmara A, Idlett-Ali S, Chee K, Shrestha K, Bayman E, Thompson J, Jameson L, Ojemann S, Kramer D. Transient cardiac asystole during vagus nerve stimulator implantation: A case report. Surg Neurol Int. 2022;13:131. PubMed PMID: 35509543
Chee K, Razmara A, Geller AS, Harris WB, Restrepo D, Thompson JA, Kramer DR. The role of the piriform cortex in temporal lobe epilepsy: A current literature review. Front Neurol. 2022;13:1042887. PubMed PMID: 36479052
Tien RN, Tekriwal A, Calame DJ, Platt JP, Baker S, Seeberger LC, Kern DS, Person AL, Ojemann SG, Thompson JA, Kramer DR. Deep learning based markerless motion tracking as a clinical tool for movement disorders: Utility, feasibility and early experience. Frontiers in Signal Processing. 2022 Sept 29. Vol 2
UCHealth Neurosurgery - Anschutz Medical Campus
1635 Aurora Court
Anschutz Outpatient Pavilion, 4th Fl
Aurora, CO 80045
720-848-2080
Hospital Affiliation
University of Colorado Hospital
UCHealth Highlands Ranch Hospital
Specialty Information
Specialties
Neurological Surgery
Conditions & Treatments
Brain and Nervous System - Deep Brain Stimulation
Brain and Nervous System
Brain and Nervous System - Epilepsy
Brain and Nervous System - General Neurosurgery
Brain and Nervous System - Movement Disorders
Brain and Nervous System - Parkinson's Disease
Brain and Nervous System - Trigeminal Neuralgia
Brain and Nervous System - Brain Tumors
Brain and Nervous System - Hydrocephalus
Brain and Nervous System - Traumatic and Acquired Brain Injuries
Clinical Interests
Dr. Kramer has a clinical interest in surgical treatments for movement disorders, epilepsy, and facial pain. He has a particular interest in resections for epilepsy, laser therapy, responsive neural stimulators, MR-guided focused ultrasound treatments, new applications for deep brain stimulation, and microvascular decompressions for disorders like trigeminal neuralgia.
Personal Interests
In his free time, he enjoys ultra-running, concerts, and finding an excuse to be outdoors.
Public Speaking Yes
Deep brain stimulation. Epilepsy. Brain computer interface.
General Information
Medical Schools:
MD, University of Pennsylvania School of Medicine
(2012)
Undergraduate Schools:
BA, Northwestern University (IL)
(2006)
Internships:
University of Southern California/LAC+USC Medical Center Program
(2013)
Residency Programs:
University of Southern California/LAC+USC Medical Center Program, Chief Resident, Neurological Surgery (2019)
Fellowships:
Stanford University Program, Neurological Surgery
(2020)