The Brain, In Living Color (IMAGE) Columbia University Caption A NeuroPAL worm coiled into an O-shape with the head and tail touching each other at the top of the ring. Every neuron (the colored dots) can be identified by its color. The colors are added with fluorescent proteins using a newly developed genetic engineering technique. Credit Eviatar Yemini Usage Restrictions None 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.