An Excess of Neurons (IMAGE) Boston Children's Hospital Caption Infants who died from SIDS had significantly more serotonergic neurons (neurons that make and release serotonin) in their brainstem as compared with controls, particularly in the area known as the midline raphé nucleus (blue dots). Credit Image courtesy David Paterson, Ph.D., Children’s Hospital Boston Usage Restrictions Please credit as indicated. 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.