Limbic system

If the reptilian brain controls things a frog could do, the paleomammalian brain controls things a dog could do. Eating, drinking, having sex, fighting, running away, hiding. It's primitive survival mode. Also it's where your emotions live (??). This is the thing poets worship, politicians exploit, economists bemoan, and is what causes assholes to think it's a good idea to be assholes.
 * Thalamus
 * Hippocampus
 * Hypothalamus
 * Amygdala
 * Pituitary gland