Intracranial Depth Electrode (IMAGE) Cell Press Caption This photograph shows an intracranial depth electrode used to record brain signals from within the brain and a one-cent coin for size comparison. The microwires protruding from the tip of the electrode (left) record action potentials from individual neurons. Credit Courtesy of Reber et al. Usage Restrictions Credit Required. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.