Pituitary adrenal activity and appetitive reinforcement

A. Randich, Janice Froehlich, S. M. Fraley

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Individual groups of rats were trained to leverpress for either a high or a low rate of food reward. Between-group comparisons of plasma and adrenal corticosterone concentrations were made for groups remaining on their respective reinforcement schedules and groups shifted to extinction. Plasma and adrenal corticosterone concentrations for groups receiving a low rate of food reward were elevated in comparison to those receiving a high rate of food reward. A shift to extinction from a high rate of reinforcement produced a significant increase in plasma and adrenal corticosterone concentration, but no change occurred when the shift was made from a schedule delivering a low rate of reinforcement. Hormone comparisons were also made between two groups of rats working on schedules that differed in preferential value (DRL and VI), but were equated for reinforcement frequency. There was no significant difference in corticosterone concentrations between these two groups, indicating that schedule preference does not influence pituitary-adrenal activity when reinforcement frequency is controlled.

Original languageEnglish (US)
Pages (from-to)346-350
Number of pages5
JournalPhysiological Psychology
Volume4
Issue number3
StatePublished - 1976
Externally publishedYes

Fingerprint

Corticosterone
Reward
Appointments and Schedules
Food
Reinforcement Schedule
Hormones
Reinforcement (Psychology)
Psychological Extinction

ASJC Scopus subject areas

  • Physiology
  • Neuroscience(all)

Cite this

Pituitary adrenal activity and appetitive reinforcement. / Randich, A.; Froehlich, Janice; Fraley, S. M.

In: Physiological Psychology, Vol. 4, No. 3, 1976, p. 346-350.

Research output: Contribution to journalArticle

Randich, A, Froehlich, J & Fraley, SM 1976, 'Pituitary adrenal activity and appetitive reinforcement', Physiological Psychology, vol. 4, no. 3, pp. 346-350.
Randich, A. ; Froehlich, Janice ; Fraley, S. M. / Pituitary adrenal activity and appetitive reinforcement. In: Physiological Psychology. 1976 ; Vol. 4, No. 3. pp. 346-350.
@article{b2e0ad0d5f2d402a9c0c3fd3d1c50ee8,
title = "Pituitary adrenal activity and appetitive reinforcement",
abstract = "Individual groups of rats were trained to leverpress for either a high or a low rate of food reward. Between-group comparisons of plasma and adrenal corticosterone concentrations were made for groups remaining on their respective reinforcement schedules and groups shifted to extinction. Plasma and adrenal corticosterone concentrations for groups receiving a low rate of food reward were elevated in comparison to those receiving a high rate of food reward. A shift to extinction from a high rate of reinforcement produced a significant increase in plasma and adrenal corticosterone concentration, but no change occurred when the shift was made from a schedule delivering a low rate of reinforcement. Hormone comparisons were also made between two groups of rats working on schedules that differed in preferential value (DRL and VI), but were equated for reinforcement frequency. There was no significant difference in corticosterone concentrations between these two groups, indicating that schedule preference does not influence pituitary-adrenal activity when reinforcement frequency is controlled.",
author = "A. Randich and Janice Froehlich and Fraley, {S. M.}",
year = "1976",
language = "English (US)",
volume = "4",
pages = "346--350",
journal = "Physiological Psychology",
issn = "0090-5046",
publisher = "Psychonomic Society Inc.",
number = "3",

}

TY - JOUR

T1 - Pituitary adrenal activity and appetitive reinforcement

AU - Randich, A.

AU - Froehlich, Janice

AU - Fraley, S. M.

PY - 1976

Y1 - 1976

N2 - Individual groups of rats were trained to leverpress for either a high or a low rate of food reward. Between-group comparisons of plasma and adrenal corticosterone concentrations were made for groups remaining on their respective reinforcement schedules and groups shifted to extinction. Plasma and adrenal corticosterone concentrations for groups receiving a low rate of food reward were elevated in comparison to those receiving a high rate of food reward. A shift to extinction from a high rate of reinforcement produced a significant increase in plasma and adrenal corticosterone concentration, but no change occurred when the shift was made from a schedule delivering a low rate of reinforcement. Hormone comparisons were also made between two groups of rats working on schedules that differed in preferential value (DRL and VI), but were equated for reinforcement frequency. There was no significant difference in corticosterone concentrations between these two groups, indicating that schedule preference does not influence pituitary-adrenal activity when reinforcement frequency is controlled.

AB - Individual groups of rats were trained to leverpress for either a high or a low rate of food reward. Between-group comparisons of plasma and adrenal corticosterone concentrations were made for groups remaining on their respective reinforcement schedules and groups shifted to extinction. Plasma and adrenal corticosterone concentrations for groups receiving a low rate of food reward were elevated in comparison to those receiving a high rate of food reward. A shift to extinction from a high rate of reinforcement produced a significant increase in plasma and adrenal corticosterone concentration, but no change occurred when the shift was made from a schedule delivering a low rate of reinforcement. Hormone comparisons were also made between two groups of rats working on schedules that differed in preferential value (DRL and VI), but were equated for reinforcement frequency. There was no significant difference in corticosterone concentrations between these two groups, indicating that schedule preference does not influence pituitary-adrenal activity when reinforcement frequency is controlled.

UR - http://www.scopus.com/inward/record.url?scp=0017181409&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0017181409&partnerID=8YFLogxK

M3 - Article

VL - 4

SP - 346

EP - 350

JO - Physiological Psychology

JF - Physiological Psychology

SN - 0090-5046

IS - 3

ER -