Microstimulation in Mouse Cortex (IMAGE) University of Pittsburgh Caption Microstimulation (130 Hz, 30 s) in a mouse cortex produced a spatiotemporal response, activating a sparse population of neurons only at the onset of stimulation (red), and a dense population of neurons throughout the stimulation duration (yellow). Credit NJ Michelson & TDY Kozai/BionicLab Usage Restrictions None 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.