Brain anatomy reflects brain evolution. The midbrain structures evolved first, which is why the limbic system was once known as "the reptilian brain." The catchy phrase is not literally true, but it ...

The limbic system helps regulate emotional and social processing, as well as learning, motivation, and memory. It consists of structures that lie beneath the outer, wrinkly part of the brain and above ...

Our bodies have inherited many biological mechanisms from our hunter-gatherer ancestors. For instance, they should be capable of efficiently storing energy as fat tissue when they have access to a ...

False-colour positron emission tomography (PET) scan highlighting limbic areas in a human brain. A receptor for the inhibitory neurotransmitter GABA is visualised here in regions of the brain ...