An analysis of the utility of differential outcome procedures in drug discrimination research

A. K. Goodwin, Lisa E. Baker

Research output: Contribution to journalArticle

Abstract

In differential outcomes procedures, the correlation of unique reinforcers with distinct discriminative stimuli can decrease the amount of time needed for response acquisition and improve terminal accuracy of responding. The drug discrimination assay is widely used to categorize psychoactive drugs as similar or dissimilar and to describe underlying neurochemical changes associated with drug administration. Because the drug discrimination assay relies heavily upon initial response acquisition and continuing terminal accuracy, a procedure successful at shortening acquisition time and improving terminal accuracy would be beneficial. The present studies examined differences in acquisition of drug stimulus control between rats exposed to differential outcome procedures and rats exposed to the outcomes, in a non-systematic way, in two experiments. The first experiment examined acquisition of control by (±)-3,4-methylenedioxymethamphetamine (MDMA), D-amphetamine and saline; the second examined control by MDMA, (+)-lysergic acid diethylamide (LSD) and saline. Neither initial acquisition nor terminal accuracy was influenced by differential outcomes in either experiment. Although the differential outcome effect has been demonstrated in many situations, it does not appear to be useful in the drug discrimination assay. Possible reasons for the lack of an observed effect are discussed.

Original languageEnglish (US)
Pages (from-to)271-278
Number of pages8
JournalBehavioural Pharmacology
Volume13
Issue number4
StatePublished - Jul 2002
Externally publishedYes

Fingerprint

N-Methyl-3,4-methylenedioxyamphetamine
Research
Pharmaceutical Preparations
Lysergic Acid Diethylamide
Drug and Narcotic Control
Psychotropic Drugs
Amphetamine

Keywords

  • Conditional discriminations
  • Differential outcome effect
  • Differential outcome procedure
  • Drug discrimination
  • Operant conditioning
  • Rat

ASJC Scopus subject areas

  • Pharmacology
  • Neuroscience(all)

Cite this

An analysis of the utility of differential outcome procedures in drug discrimination research. / Goodwin, A. K.; Baker, Lisa E.

In: Behavioural Pharmacology, Vol. 13, No. 4, 07.2002, p. 271-278.

Research output: Contribution to journalArticle

@article{26a92cbe6aa444deab02d0d25d40358d,
title = "An analysis of the utility of differential outcome procedures in drug discrimination research",
abstract = "In differential outcomes procedures, the correlation of unique reinforcers with distinct discriminative stimuli can decrease the amount of time needed for response acquisition and improve terminal accuracy of responding. The drug discrimination assay is widely used to categorize psychoactive drugs as similar or dissimilar and to describe underlying neurochemical changes associated with drug administration. Because the drug discrimination assay relies heavily upon initial response acquisition and continuing terminal accuracy, a procedure successful at shortening acquisition time and improving terminal accuracy would be beneficial. The present studies examined differences in acquisition of drug stimulus control between rats exposed to differential outcome procedures and rats exposed to the outcomes, in a non-systematic way, in two experiments. The first experiment examined acquisition of control by (±)-3,4-methylenedioxymethamphetamine (MDMA), D-amphetamine and saline; the second examined control by MDMA, (+)-lysergic acid diethylamide (LSD) and saline. Neither initial acquisition nor terminal accuracy was influenced by differential outcomes in either experiment. Although the differential outcome effect has been demonstrated in many situations, it does not appear to be useful in the drug discrimination assay. Possible reasons for the lack of an observed effect are discussed.",
keywords = "Conditional discriminations, Differential outcome effect, Differential outcome procedure, Drug discrimination, Operant conditioning, Rat",
author = "Goodwin, {A. K.} and Baker, {Lisa E.}",
year = "2002",
month = "7",
language = "English (US)",
volume = "13",
pages = "271--278",
journal = "Behavioural Pharmacology",
issn = "0955-8810",
publisher = "Lippincott Williams and Wilkins",
number = "4",

}

TY - JOUR

T1 - An analysis of the utility of differential outcome procedures in drug discrimination research

AU - Goodwin, A. K.

AU - Baker, Lisa E.

PY - 2002/7

Y1 - 2002/7

N2 - In differential outcomes procedures, the correlation of unique reinforcers with distinct discriminative stimuli can decrease the amount of time needed for response acquisition and improve terminal accuracy of responding. The drug discrimination assay is widely used to categorize psychoactive drugs as similar or dissimilar and to describe underlying neurochemical changes associated with drug administration. Because the drug discrimination assay relies heavily upon initial response acquisition and continuing terminal accuracy, a procedure successful at shortening acquisition time and improving terminal accuracy would be beneficial. The present studies examined differences in acquisition of drug stimulus control between rats exposed to differential outcome procedures and rats exposed to the outcomes, in a non-systematic way, in two experiments. The first experiment examined acquisition of control by (±)-3,4-methylenedioxymethamphetamine (MDMA), D-amphetamine and saline; the second examined control by MDMA, (+)-lysergic acid diethylamide (LSD) and saline. Neither initial acquisition nor terminal accuracy was influenced by differential outcomes in either experiment. Although the differential outcome effect has been demonstrated in many situations, it does not appear to be useful in the drug discrimination assay. Possible reasons for the lack of an observed effect are discussed.

AB - In differential outcomes procedures, the correlation of unique reinforcers with distinct discriminative stimuli can decrease the amount of time needed for response acquisition and improve terminal accuracy of responding. The drug discrimination assay is widely used to categorize psychoactive drugs as similar or dissimilar and to describe underlying neurochemical changes associated with drug administration. Because the drug discrimination assay relies heavily upon initial response acquisition and continuing terminal accuracy, a procedure successful at shortening acquisition time and improving terminal accuracy would be beneficial. The present studies examined differences in acquisition of drug stimulus control between rats exposed to differential outcome procedures and rats exposed to the outcomes, in a non-systematic way, in two experiments. The first experiment examined acquisition of control by (±)-3,4-methylenedioxymethamphetamine (MDMA), D-amphetamine and saline; the second examined control by MDMA, (+)-lysergic acid diethylamide (LSD) and saline. Neither initial acquisition nor terminal accuracy was influenced by differential outcomes in either experiment. Although the differential outcome effect has been demonstrated in many situations, it does not appear to be useful in the drug discrimination assay. Possible reasons for the lack of an observed effect are discussed.

KW - Conditional discriminations

KW - Differential outcome effect

KW - Differential outcome procedure

KW - Drug discrimination

KW - Operant conditioning

KW - Rat

UR - http://www.scopus.com/inward/record.url?scp=0036633355&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036633355&partnerID=8YFLogxK

M3 - Article

VL - 13

SP - 271

EP - 278

JO - Behavioural Pharmacology

JF - Behavioural Pharmacology

SN - 0955-8810

IS - 4

ER -