Tales of Tolgard
Cerebral parasites are a type of psionic aberrations. This species of mental parasite feeds on the nervous energy of sentient creatures. Some sages think that they are a deviant branch of the dreaded intellect devourers. Cerebral parasites are different since they sooth the mind and boost their host’s higher mental processes. They do this by taking care of certain mundane thinking tasks in exchange for feeding on their mental energy.