Does Responding on Progressive Ratio Schedule of Reinforcement Vary as A Function of Phase in Estrous Cycle?

Authors

Armandina M. Sanchez, University of Texas-Pan American

Date of Award

12-2011

Document Type

Thesis

Degree Name

Master of Arts (MA)

Department

Psychology

First Advisor

Dr. Frederick A. Ernst

Second Advisor

Dr. Cheryl Fielding

Third Advisor

Dr. Valerie N. Neeley

Abstract

Hormonal fluctuations across the menstrual and estrous cycle have been found to influence a variety of behavioral and physical responses in humans and animals, respectively. Impulsive behavior has been associated with the luteal phase of the cycle. Progressive ratio schedule of reinforcement has been widely used to assess the strength of reinforcers. In the present study, a comparison was made between the rate of motor activity, lever pressing, of early and late estrous groups. Differences between the groups were not statistically significant. Further analysis explored subjects individually. Visual examination of the data reveal extreme variability in responding, which coupled with the small number of subjects could at least partially account for the lack of significant findings.

Comments

Copyright 2011 Armandina M. Sanchez. All Rights Reserved.

https://www.proquest.com/dissertations-theses/does-responding-on-progressive-ratio-schedule/docview/922994594/se-2

Granting Institution

University of Texas-Pan American