Figure 5: Below is a 15-s video of a food-restricted rat. On the bottom of the screen, the dopamine signal from the ventral striatum of that rat scrolls on in real-time with the video. The experimenter's hand reaches in to the cage to give the rat a piece of sugary cereal, and a dopamine transient (shown in green) is triggered. After taking the cereal, the rat turns and holds it in its paws to eat.
Bowles Center for Alcohol Studies at the University of North Carolina at Chapel Hill