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

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Links
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 Penn Focused Ultrasound Program
Research Website (RESTORE Lab)
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Penn Medical Scientist Training Program (MSTP)
Penn Neuroscience Graduate Group (NGG) Faculty
Penn Biomedical Graduate Studies (BGS) Faculty Profile
Penn Parkinson's Disease and Movement Disorders Center
Penn Epilepsy Center
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
ORCID identifier ORCID Logo
0000-0002-5808-453X

Selected Publications

Borges PGLB, Qureshi Q, Davis P, Wang Z, Sargur K, Haggerty J, Wingel K, Kim MJ, Pisano TJ, Ho E, Barth K, Byun YW, Miller JS, Dister J, Anushiravani R, Murphy M, Poole AJ, Strauss J, Mermel CH, Qiu L, Halpern CH, Yoshor D, Beauchamp M, Pesaran B, Rapoport BI, Cajigas I: Microscale organization and separability of upper extremity representations in the human motor homunculus. Research Square (preprint) Apr 2026 Notes: Preprint. doi: 10.21203/rs.3.rs-9528027/v1.

 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.

 Howard SD, Gabriel E, Singh S, Cajigas I, Aamodt W, Farrar J, Kearney MD: Perception of neurosurgery among surgical patients with essential tremor: A qualitative mixed methods study. World Neurosurgery: X 28: 100504, Oct 2025 Notes: doi: 10.1016/j.wnsx.2025.100504.

 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.
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Last updated: 07/09/2026
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