This blog reports new ideas and work on mind, brain, behavior, psychology, and politics - as well as random curious stuff
Wednesday, October 07, 2009
"Wanting" what was never "liked"
Work from Berridge and collaborators shows in rat experiments that pathways in the ventral pallidum that fire when a cue to a previously liked stimulus (such as sucrose) is presented - but do not fire with a cue of the previously "disliked" taste of intense salt - can suddenly become activated if the salt cue is encountered in a never-before-experienced state of physiological salt depletion. This means that dynamic recomputation of cue-triggered "wanting" signals can occur in real time at the moment of cue re-encounter by combining a previously learned Pavlovian associations with novel physiological information about a current state of specific appetite.
Posted by Deric Bownds at 5:35 AM
Blog Categories: memory/learning, motivation/reward
Subscribe to: Post Comments (Atom)
Post a Comment