Iahn Cajigas Gonzalez, MD, PhD

faculty photo
Assistant Professor of Neurosurgery at the Hospital of the University of Pennsylvania
Department: Neurosurgery
Contact information
801 Spruce St. Fl. 8
Philadelphia, PA 19107
Philadelphia, PA 19107
Office: 2158296700
Fax: 2158296645
Email: iahn.cajigas@pennmedicine.upenn.edu
Graduate Group Affiliations
Publications

Search PubMed for articles
Links
Search PubMed for articles
 Penn Biomedical Graduate Studies (BGS) Faculty Profile
Penn Medical Scientist Training Program (MSTP)
Google Scholar Profile
Penn Parkinson's Disease and Movement Disorders Center
Research Website (RESTORE Lab)
Penn Bioengineering Graduate Group Faculty
Penn Epilepsy Center
Penn Engineering Faculty Directory (Bioengineering)
My NCBI Public Bibliography
Penn Neuroscience Graduate Group (NGG) Faculty
ORCID
Penn Medicine Physician Profile
Penn Focused Ultrasound Program
Education:
BSc (Electrical Engineering and Computer Science)
Massachusetts Institute of Technology, 2002.
 MEng (Electrical Engineering and Computer Science)
Massachusetts Institute of Technology, 2003.
 PhD (Electrical and Medical Engineering)
Massachusetts Institute of Technology, 2012.
 MD (Medicine)
Harvard Medical School, 2014.
Post-Graduate Training
Intern in Neurological Surgery, Jackson Memorial Hospital/University of Miami Miami Miller School of Medicine , 2014-2015.
 Resident in Neurological Surgery, Jackson Memorial Hospital/University of Miami Miller School of Medicine, 2015-2021.
 Epilepsy, Functional, and Stereotactic Neurosurgery Fellow, University of California, San Francisco, 2021-2022.
Certifications
American Board of Neurological Surgery, 2025.
Permanent link
 
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Description of Clinical Expertise

Movement disorders, Parkinson's disease, dystonia, essential tremor, freezing of gait, neuromodulation, stereotactic neurosurgery, gamma knife, epilepsy surgery, responsive neurostimulation, deep brain stimulation, speech and motor mapping, facial pain, cancer pain

Description of Research Expertise

Signal processing, neuromodulation, brain computer interfaces, control systems, machine learning

Selected Publications

Haggerty J, Qureshi Q, Gabriel ED, Borges PG, Davis P, Wingel K, Cai J, Sargur K, Kim MJ, Dubey A, Garwood I, Vaz A, Richardson AG, Chen HI, Hammer LH, Gold J, Litt B, Yoshor D, Beauchamp M, Halpern C, Pesaran B, Cajigas I: Thalamus: a real-time system for synchronized, closed-loop multimodal behavioral and electrophysiological data capture. Commun Eng Mar 2026.

 Choi W, Nho YH, Qiu L, Chang A, Campos G, Seilheimer RL, Wilent WB, Bakalov D, Firdous N, Kerr M, Joshi D, Maze G, Topalovic U, Batista D, Suthana N, Amaro A, Hayes MR, Cajigas I, Cristancho M, Allison KC, Pesaran B, Scangos KW, Gold JI, Wadden TA, Halpern CH: Brain activity associated with breakthrough food preoccupation in an individual on tirzepatide. Nat Med 31(12): 4038-4043, Dec 2025.

 Borges, P., Qureshi, Q., Hammer, L. H., Cajigas, I.: Effect of Motor Imagery on Tremor in a Patient With Parkinson Disease Undergoing Intraoperative Testing. Neurology 105(9): e214246, 2025.

 Luca, Corneliu, Ballesteros, Viviana Torres, Baumgartner, Michael, Gujral, Jaskeerat, Qiu, Liming, Piedade, Guilherme Santos, Widerstrom-Noga, Eva, Haq, Ihtsham, Noga, Brian, Jagid, Jonathan: Low Frequency Directional Deep Brain Stimulation of the Cuneiform Nucleus for Levodopa-resistant Freezing of Gait: Six-month Outcomes (P9-5.002). Neurology. Lippincott Williams & Wilkins Hagerstown, MD, 104(7_Supplement_1): 5314, 2025.

 Howard, S. D., Singh, S., Macaluso, D., Hsu, J. Y., Cajigas, I., Qiu, L., Halpern, C. H., Aamodt, W. W., Farrar, J. T.: Correlation of the clinical rating scale for tremor with a global assessment. Clin Neurol Neurosurg 249: 108710, 2025.

 Howard, S. D., Potluri, V. S., Hejazi-Garcia, C., Davis, P., Heuer, G. G., Punchak, M. A., Malhotra, N. R., Hsu, J. Y., Cajigas, I.: The social deprivation index and deep brain stimulation: A cohort study. Clin Neurol Neurosurg 252: 108860, 2025.

 Davis, K. C., Wyse-Sookoo, K. R., Raza, F., Meschede-Krasa, B., Prins, N. W., Fisher, L., Brown, E. N., Cajigas, I., Ivan, M. E., Jagid, J. R., Prasad, A.: 5-year follow-up of a fully implanted brain-computer interface in a spinal cord injury patient. J Neural Eng 22(2), 2025.

 Howard SD, Karsalia R, Ghenbot Y, Qiu L, Pomeraniec IJ, Lee JYK, Zager EL, Cajigas I.: A surgical decision aid for occipital neuralgia with literature review and single center case series. Clin Neurol Neurosurg 236: 108082, Jan 2024.

 Vaz, A., Wathen, C., Miranda, S., Thomas, R., Darlington, T., Jabarkheel, R., Tomlinson, S., Arena, J., Bond, K., Salwi, S., Ajmera, S., Bachschmid-Romano, L., Gugger, J., Sandsmark, D., Diaz-Arrastia, R., Schuster, J., Ramayya, A. G., Cajigas, I., Pesaran, B., Chen, H. I., Petrov, D.: Return of intracranial beta oscillations and traveling waves with recovery from traumatic brain injury. bioRxiv 2024.

 Kim, Min Jae, Qureshi, Qasim, Davis, Pierce Hunter, Vaz, Alex, Ho, Elton, Byun, Yoon Woo, Rapoport, Benjamin, Pesaran, Bijan, Cajigas, Iahn: Distinctive Spatial Distributions of Motor Cortex Oscillatory Dynamics After Subthalamic Nucleus Deep Brain Stimulation in Parkinson’s Disease. Neurosurgery 71(Supplement_1): 214, 2024.
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Last updated: 04/23/2026
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