Video showing stimulation and response (VIDEO) Princeton University This video is under embargo. Please login to access this video. Caption Video shows measurements of neural activity in the worm’s head as individual neurons are optically stimulated one-at-a-time. The neuron in the crosshairs is stimulated when the words “Stimulated” appear. When neurons become active they appear dark red in this visualization. Video is sped up 4x. Photo Attribution: Francesco Randi Credit Photo Attribution: Francesco Randi, Princeton University Usage Restrictions Use with attribution. Photo Attribution: Francesco Randi, Princeton University 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.