1 top after is recorded in alert monkeys whilein vta

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: unctionsdopamine neurons show a short burst of impulses after reward Page 3 of 9 of appetitiv rence http://www.behavioralandbrainfunctions.com/content/6/1/24 Dopamine neuron they per- delivery (Fig. 1, top). After is recorded in alert monkeys whilein VTA (ventral tegmental area) several days of puts appear to co training, the animal learns to reach for the between the actu form behavioral acts and receivereward prediction error signals rewards. dictions of the tim These neurons ar Fig. 1. Changes in dopamine neurons’ Do dopamine neurons report an error of the reward is un output code for an error in the prediction of in the prediction of reward? by any preceding appetitive events. (Top) Before learning, a therefore excellen No prediction drop of appetitive fruit juice occurs in the Reward occurs “goodness” of env absence of prediction— hence a positive to learned predic error in the prediction of reward. The doThey emit a posi pamine neuron is activated by this unpreproduction) if an dicted occurrence of juice. (Middle) After (No CS) R than p...
View Full Document

This document was uploaded on 02/28/2014 for the course BME 580.402 at Johns Hopkins.

Ask a homework question - tutors are online