Physiological Mechanisms of Motivation

To scientists engaged in research on the cellular mechanisms in the mammalian brain, concepts of "motivation" seem to be a logical neces­ sity, even if they are not fashionable. Immersed in the detailed, time­ consuming research required to deal with mammalian nerve cells, we usually pay scant attention to the more global brain -behavior questions that have arisen from decades of biological and ps...