A recording of the electrical activity in the brain made by placing electrodes directly on the brain's surface, usually during surgery.
From 'electro-' (electricity) + 'cortical' (relating to the brain's cortex) + '-gram' (recording). Developed in the mid-1900s as neurosurgeons needed to map brain function during operations.
Neurosurgeons use electrocorticograms during brain surgery to avoid damaging important areas that control speech or movement—it's like a live electrical map of your thinking brain! This technique has helped scientists understand which parts of the brain do what.
Complete word intelligence in one call. Free tier — 50 lookups/day.