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Updated: Jun 27, 2026

Intra-Operative Behavioral Tasks in Awake Humans Undergoing Deep Brain Stimulation Surgery
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Published on: January 6, 2011

Electrocorticography During Deep Brain Stimulation Surgery for Movement Disorders: Single-Center Experience.

Helena Ljulj1, Kurt Lehner1, Kimberley Wyse-Sookoo2,3

  • 1Department of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA.

Brain Sciences
|June 26, 2026
PubMed
Summary
This summary is machine-generated.

High-density electrocorticography during awake deep brain stimulation surgery is safe and feasible for movement disorder research. This method provides high-resolution neurophysiological data, improving spatial resolution and analysis compared to previous studies.

Keywords:
Parkinson diseasedeep brain stimulationelectrocorticographymovement disorders

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Last Updated: Jun 27, 2026

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Area of Science:

  • Neurosurgery
  • Neuroscience
  • Medical Technology

Background:

  • Electrocorticography (ECoG) is an intraoperative research tool during deep brain stimulation (DBS) surgery.
  • Awake patients can participate in behavioral tasks or rest during ECoG recordings.

Purpose of the Study:

  • Describe ECoG methods in awake DBS surgery patients.
  • Assess feasibility, safety, and usefulness of high-density ECoG for high-resolution neurophysiological data.
  • Hypothesize improved spatial resolution and data analysis with high-density ECoG and multi-subject integration.

Main Methods:

  • Data from 36 awake DBS surgery patients (Parkinson's disease, essential tremor) between March 2022-September 2024.
  • Analysis of electrophysiological and anatomical data using standard coordinate systems.
  • Monitoring of surgical complications for at least six months postoperatively.

Main Results:

  • Thirty-six patients enrolled; one had inadequate anatomical placement.
  • Complications included 3 infections (8.3%) and 1 subdural hematoma (2.8%), with no permanent deficits.
  • High-density ECoG enabled high-resolution cortical mapping and multi-subject analysis with over 1300 electrode positions.

Conclusions:

  • ECoG is a valuable research method for movement disorders during DBS surgery.
  • The procedure is safe, with risks comparable to standard DBS surgery.
  • High-density ECoG offers enhanced spatial resolution and data analysis capabilities.