Modeling Autism in a Dish (2 of 2) (IMAGE) Salk Institute Caption Neurons generated from Rett-iPS cells form fewer synapses, the specialized signal transmission points between brain cells. Synapses are shown in red and dendrites, which function as signal receivers, are shown in green. Credit Image: Courtesy of Dr. Carol Marchetto, Salk Institute for Biological Studies. Usage Restrictions News media reproduction to illustrate this story permitted with proper attribution as provided above. For one time use only. 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.