Reference : Incentive salience attribution under reward uncertainty: A Pavlovian model
Scientific journals : Article
Social & behavioral sciences, psychology : Neurosciences & behavior
Incentive salience attribution under reward uncertainty: A Pavlovian model
Anselme, Patrick mailto [Université de Liège - ULiège > Département de Psychologie : cognition et comportement > Neuroscience comportementale et psychopharmacologie expér. >]
Behavioural Processes
Elsevier Science
Yes (verified by ORBi)
The Netherlands
[en] partial reinforcement ; motivation ; learning ; dopamine ; frustration
[en] There is a vast literature on the behavioural effects of partial reinforcement in Pavlovian conditioning. Compared with animals receiving continuous reinforcement, partially rewarded animals typically show (a) a slower development of the conditioned response (CR) early in training and (b) a higher asymptotic level of the CR later in training. This phenomenon is known as the partial reinforcement acquisition effect (PRAE). Learning models of Pavlovian conditioning fail to account for it. In accordance with the incentive salience hypothesis, it is here argued that incentive motivation (or ‘wanting’) plays a more direct role in controlling behaviour than does learning, and reward uncertainty is shown to have an excitatory effect on incentive motivation. The psychological origin of that effect is discussed and a computational model integrating this new interpretation is developed. Many features of CRs under partial reinforcement emerge from this model.

File(s) associated to this reference

Fulltext file(s):

Restricted access
Anselme (2015).pdfPublisher postprint1.2 MBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.