When mice encounter an unfamiliar food, neurons in a brain region called the amygdala light up (blue). If the mice start feeling sick after the meal, the same neurons get reinforced to help the mouse ...

Food, in powdered form, is placed in a feeding assembly that rests on a precision modified Mettler Toledo Balance (0.01-210 g range). The mouse accesses food by eating from a spring-loaded feeder ...

several food packages had mouse feces on them, hand-washing sink was being used to store a water pitcher and a paper bag, ...