Neurotransmitter switching (IMAGE) University of California - San Diego Caption Neurotransmitter switching: Mouse models highlight excitatory neurons (red cells) that express the neurotransmitter glutamate while inhibitory neurons (green cells) express the neurotransmitter GABA. Yellow arrowheads indicate inhibitory neurons that have switched their neurotransmitter from GABA to glutamate. Credit Spitzer Lab, UC San Diego Usage Restrictions Must be used in conjunction with PNAS study on autism and neurotransmitter switching. License Original 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.