Less Well Connected (IMAGE) Brown University Caption The wild-type, or normal, mouse neuron on the left has more synapses than the one with a mutation in the gene GPT2. Credit Ouyang et. al./Brown University Usage Restrictions with credit 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.