The Role of Learning in the Operation of Motivational Systems
Abstract Acquired behavior is motivated by two forms of incentive learning. Pavlovian incentive learning reflects the acquisition of motivational properties by conditioned stimuli (CSs) through their association with appetitive and aversive reinforcers. Although the influence of appetitive CSs is modulated by primary motivational states, they exert a general motivation influence on appetitive behavior. By contrast, aversive CSs inhibit appetitive behavior. The second process, instrumental incentive learning, determines the incentive value assigned to outcomes of goal‐directed, instrumental action. This incentive value, and its control by primary motivational states, has to be learned through experience of the hedonic reactions elicited by the outcome. The two incentive learning processes function in parallel to motivate instrumental behavior.
