Raslan Lab

Ahmed Raslan
Dr. Raslan

Ahmed Raslan, M.D., Principal Investigator

In 2004, Raslan joined OHSU as a neurosurgical instructor. Already a fully qualified neurosurgeon (Ain Shams University in Egypt), in 2012 he completed the OHSU neurological surgery residency program (required for practice in the US). Dr. Raslan joined the faculty of neurological surgery in July 2012 as an assistant professor and was promoted to associate professor in 2017.

Dr. Raslan's research is focused on  the cortical and subcortical physiology, physiology of nociception and pain modulation, pathophysiology of trigeminal neuralgia, outcomes of functional neurosurgery, functional localization using intraoperative and extraoperative mapping, surgical education and operative efficiency.

Dr. Raslan's research interests parallel his clinical interests and reflect his values. He also believes in scientific discovery that addresses healthcare disparities.

Publications; Scopus and PubMed.Gov 

hao tan
Hao Tan

Hao Tan, B.A., Research Fellow, 2022-2023

Oregon Health & Science University School of Medicine MD Candidate, 2024

Hao is medical student at OHSU and is the current research fellow for the Raslan Lab. He has been actively engaged in a wide variety of clinical and basic science research endeavors since joining the lab in Spring 2021. His research interests involve both neuro-oncology and functional neurosurgery.

Joseph G. Nugent
Joseph G. Nugent

Joseph G. Nugent, B.A., M.H.S., Student Volunteer

MD/MPH Candidate, Class of 2023

Joe has been an active and contributing member of the Raslan Lab since his first months as a medical student at OHSU in 2018. He is pursuing a joint degree in medicine and public health through the OHSU-PSU School of Public Health with a concentration in Epidemiology and Biostatistics. Joe’s research interests center around the spectrum of traumatic brain injury, from population-level trends in incidence and mechanisms, to neurocritical care, brain mapping, and neurophysiology with a particular interest in electrophysiologic factors predicting capacity for functional recovery. Joe also holds interest in advanced biostatistical and epidemiologic methods, and continues to actively participate in endeavors focusing on medical education, integration of multimodality intraoperative mapping mechanisms, as well as health disparities and inequities.


Our network of collaborators function at all levels of the scientific community, from local researchers and industry developers to state government and international academics. 

  • Emma Richie, MD - OHSU House Officer-Surgery
  • Caleb Nerison, BA, BS - Research Fellow, 2021-2022, Western University of Health Sciences, College of Osteopathic Medicine of the Pacific-NW, Lebanon, Oregon
  • Brittany Stedelin, BA - Oregon Health & Science University School of Medicine MD Candidate, 2023
  • Zoe Teton, MD - Neurosurgery Resident at University of California, Los Angeles
  • Erik Brown, MD, PhD - Pediatric Fellow, Brain Institute, Nicklaus Children's Hospital, Miami, Florida
  • Sydney S. Cash, MD, PhD - Associate Professor of Neurology, Harvard Medical School and Assistant in Neurology, Massachusetts General Hospital, Boston
  • Shadi Dayeh, PhD - Professor Electrical and Computer Engineering, University of California San Diego
  • Eric Halgren, PhD - Professor Radiology and Neuroscience, University of California San Diego
  • Angelique C. Paulk, PhD - Professor Neurology, Massachusetts General Hospital
  • Nicki Swann, PhD - Assistant Professor Human Neurophysiology, University of Oregon
  • Alex Rockhill, BS - Graduate student at the University of Oregon in the Department of Human Physiology researching in the Swann Lab studying the electrophysiology of movement and movement disorders using computational neuroscience


Grant Funded Research

  • STUDY00018870: Human Neurophysiology during Movement and Cognition
    • Raslan/Halgren NINDS-UCSD
    • Neurosurgeon Research Career Development Program (Collins K12)
    • Raslan/Swann Oregon U
  • STUDY00019099: Advancing Novel Microelectrode Systems Using Intraoperative Central Nervous System Recordings
  • STUDY00021850: Decoding the Resting State Language Network and Induced Alterations in Epilepsy
  • STUDY00024001: Understanding Mass Associated Epilepsy
  • STUDY00023806: The Placebo-controlled Efficacy of iNPH Shunting (PENS) TrialA Placebo-Controlled Effectiveness in INPH Shunting (PENS) Trial
    • Raslan/Luciano (Johns Hopkins) UG3/UH3 NIH

 Industry Funded Research

  • Novel Treatment Delivery of ECAP-controlled Closed-loop SCS for Chronic Pain; Saluda
  • Stereotactic Laser Ablation for Temporal Lobe Epilepsy (SLATE); Medtronic
  • RNS® System Responsive Thalamic Stimulation for Primary Generalized Seizures Study (NAUTILUS Study); Neuropace