How Do You Test a Rat’s Memory?

Brain injury often impairs a person’s ability to remember. To find new drugs that improve memory after brain injury, scientist must rely on experiments in animals such as rats. But how do you test the rats? One way is use pool of colored water, called Morris water maze. In this maze, rats have “remember” where go get out water. The more rat’s has improved, quicker it finds its (rats not like being water). This can also be used compare two different drug treatments. It an important tool for discovery.