UCLA scientists observed the activity of large numbers of neurons in the brains of rats while the animals navigated a virtual reality maze. [Mehta Lab/UCLA] It has been long understood that the area ...

As memory fades, people may have difficulty learning new things or navigating their surroundings. In an experiment with rats, scientists explore the role of the hippocampus in helping rats get through ...

The rat race. I’ve heard the phrase a hundred times, but never understood how it came to mean our tiresome work life. Turns out it is an analogy to lab rats racing through a maze, expending great ...