Other chemicals in the brain, such as natural opioids, may provide the pleasure of actual drinking, but perhaps dopamine provides something that is closer to a desire, even a craving. Desire is more of an anticipatory feeling, but is nonetheless powerfully motivating and in some sense enjoyable, although at times it can be more like a maddening itch. Two of the scientists conducting this groundbreaking research, Kent Berridge and Terry Robinson, concluded that dopamine stimulates the wanting of juice rather than the liking of it.
