User:Jtwsaddress42/Quotes/Edelman, Gerald M. 1992(a)d

The Hedonic Limbic Brain Stem System "'The first [type of nervous system] is the brain stem, together with the limbic (hedonic) system, the system concerned with the appetite, sexual and consummatory behavior, and evolved defensive behavior patterns. It is a value system; it is extensively connected to many different body organs, the endocrine system, and the autonomic nervous system. (...) It will come as no surprise that the circuits in this limbic-brain stem system are often arranged in loops, that they respond relatively slowly (in periods ranging from seconds to months), and that they do not consist of detailed maps.  They have been selected during evolution to match the body, not to match large numbers of unanticipated signals from the outside world.  These systems evolved early to take care of the bodily functions;  they are systems of the interior.'

Gerald M. Edelman (1992)"