Electrocorticography
Pronunciation: ee-lek-tro-kor-ti-KOG-rah-fee
Also written as: ECoG — Electrocorticography
A neurophysiological monitoring technique that records electrical activity directly from the cerebral cortex surface using implanted electrode grids.
Full Definition
Electrocorticography (ECoG) is an invasive neurophysiological technique used in epilepsy surgery and brain-computer interface applications to record high-resolution electrical signals directly from the cortical surface. Unlike scalp EEG, ECoG provides superior spatial resolution and signal fidelity because electrodes are placed directly on the brain surface, eliminating signal attenuation from skull and scalp tissues. This technique is commonly used for seizure focus localization, functional brain mapping, and real-time monitoring during neurosurgical procedures. ECoG data helps guide surgical decision-making and optimize therapeutic neuromodulation parameters by providing precise information about cortical activity patterns and functional brain networks.
Usage
Usage note: Commonly abbreviated as ECoG in clinical documentation.
In Context
- "Electrocorticography confirmed seizure onset in the left temporal region prior to resection." — Surgical report
- "The research protocol included chronic electrocorticography monitoring for brain-computer interface development." — Research documentation