Within-trial contrast: The effect of probability of reinforcement in training

Gipson, Cassandra D.; Miller, Holly C.; Alessandri, Jerome; Zentall, Thomas R.

Document type :

Article dans une revue scientifique

DOI :

10.1016/j.beproc.2009.05.006

Permalink :

http://hdl.handle.net/20.500.12210/18953

Title :

Within-trial contrast: The effect of probability of reinforcement in training

Author(s) :

Gipson, Cassandra D. [Auteur]
University of Kentucky [UK]
Miller, Holly C. [Auteur]
University of Kentucky [UK]
Alessandri, Jerome [Auteur]

Unité de Recherche en Sciences Cognitives et Affectives [URECA]
Zentall, Thomas R. [Auteur]
University of Kentucky [UK]

Journal title :

Behavioural Processes

Abbreviated title :

Behavioural Processes

Volume number :

Pages :

126-132

Publisher :

Elsevier BV

Publication date :

2009-10

ISSN :

0376-6357

English keyword(s) :

Within-trial contrast
Work ethic
Partial reinforcement
Simultaneous discrimination
Pigeons

HAL domain(s) :

Sciences de l'Homme et Société/Psychologie

English abstract : [en]

There is evidence that pigeons prefer conditioned reinforcers that are preceded by greater effort over those that are preceded by less effort (an effect that has been attributed to within-trial contrast). In past research ...
Show more >There is evidence that pigeons prefer conditioned reinforcers that are preceded by greater effort over those that are preceded by less effort (an effect that has been attributed to within-trial contrast). In past research the probability of reinforcement for correct choice of the conditioned reinforcer has been 100%, however, the high level of reinforcement for both alternatives in training may result in a performance ceiling when choice between those alternatives is provided on test trials. In the present study we tested this hypothesis by including a group for which the probability of reinforcement in training was only 50%. Pigeons were trained on two simultaneous discriminations, one that was preceded by a 30 peck requirement the other by a single peck requirement. On test trials, we found a significant preference for the S+ that required the greater effort in training for pigeons trained with 100% and a small but nonsignificant effect for pigeons trained with 50% reinforcement. Although the hypothesis that the within-trial contrast effect was constrained by a performance ceiling was not confirmed, we did find a reliable within-trial contrast effect with 100% reinforcement.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Administrative institution(s) :

Université de Lille
CNRS
CHU Lille

Collections :

Autres travaux scientifiques

Submission date :

2020-03-27T13:13:33Z
2020-03-30T13:01:57Z

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