Neurons-Control (IMAGE) Johns Hopkins Medicine Caption Control: Neurons (red) in the brain's hippocampus. Inhibitory signals (green) that suppress the neurons from firing are located in the synapses--the junctions where the neurons connect and communicate with each other. Credit Pletnikov lab 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.