Professional
Technical
In the Industry Vocabulary Test
electrocorticography
Pronunciation: ee-LEK-tro-kor-ti-KOG-ra-fee
Direct recording of electrical activity from the brain surface using implanted electrode grids.
Full Definition
Electrocorticography (ECoG) involves direct recording of electrical brain activity using electrode grids or strips placed directly on the cortical surface during neurosurgery or through chronically implanted devices. This technique provides superior spatial resolution and signal quality compared to scalp EEG, allowing precise localization of seizure foci and mapping of eloquent cortex before resection. ECoG is primarily used in presurgical epilepsy evaluation and brain-computer interface research.
Usage
Usage note: Often abbreviated as ECoG in clinical practice.
In Context
- "Electrocorticography confirmed seizure onset in the left temporal lobe." — Epilepsy surgery evaluation
- "The electrocorticography study provided high-resolution mapping of motor cortex." — Presurgical functional mapping report
Also known as
ECoG
intracranial EEG
Contrasted with
scalp EEG
Don't confuse with
stereoelectroencephalography
electrocautery