Motivation for alcohol assessed by multiple variable interval schedule behaviour: effects of reward size and alcohol cues
Glautier, S., Rigney, U. and Willner, P. (2001) Motivation for alcohol assessed by multiple variable interval schedule behaviour: effects of reward size and alcohol cues. Behavioural Pharmacology, 12, (2), 81-89.
Download
Full text not available from this repository.
Official URL: http://www.behaviouralpharm.com/pt/re/bpharm/abstr...
Description/Abstract
Altered motivation for drugs of abuse is a central feature of most definitions of drug dependence and the impact of drug-related cues on motivation is of current interest. However, since most studies of cue-reactivity have not used behavioural measures of motivation, their results are often difficult to interpret in motivational terms. In the current paper we describe two experiments in which a behavioural technique, based on multiple variable interval (VI) schedules of reinforcement, was used to study motivation for alcohol in human subjects. In both experiments, subjects attended for several sessions and, during each session, were exposed to a 6-ply VI schedule (values ranged from 1 to 720 s), during which they earned points that were later exchanged for a preferred beer or lager. In Experiment 1 the procedure was validated by showing that changes in the magnitude of reinforcement altered behaviour appropriately. In Experiment 2 we found evidence that the presence of an alcohol-related cue increased the value of alcohol rewards. The results are discussed with reference to a model for the behavioural effects of drug-related cues in triggering relapse and a number of problems we found in using the multiple variable interval schedule procedure.
| Item Type: | Article |
|---|---|
| ISSN: | 0955-8810 (print) |
| Related URLs: | http://www.ncbi.nlm.nih.gov/en...query_hl=4 http://www.behaviouralpharm.co...44!9001!-1 |
| Subjects: | R Medicine > RM Therapeutics. Pharmacology B Philosophy. Psychology. Religion > BF Psychology |
| Divisions: | University Structure - Pre August 2011 > School of Psychology > Division of Cognition |
| ePrint ID: | 18599 |
| URI: | http://eprints.soton.ac.uk/id/eprint/18599 |
| Deposited On: | 01 Dec 2005 |
| Last Modified: | 01 Jun 2011 02:45 |
Associated Staff Only: edit my ePrint
