Neuromodulatory cell labeling (IMAGE) Picower Institute at MIT Caption In this figure extracted from the research study, staining of proteins highlights various cell type makers: neurons overall (cyan), and cells specifically involved with neurotransmitters dopamine (yellow) and acetylcholine (magenta). Credit Chung Lab/MIT Picower Institute Usage Restrictions with credit 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.