Term of Award

Spring 1977

Degree Name

Master of Arts

Document Type and Release Option

Thesis (restricted to Georgia Southern)


Department of Psychology

Committee Chair

Paul R. Kleinginna, Jr.

Committee Member 1

J. Peter Kincaid

Committee Member 2

Georgelle Thomas


Three Icing snakes were differentially reinforced on a lighted and an unlighted key for water reinforcement. All snakes were first reinforced for pressing either key, then only the non-preferred key was reinforced. For all three subjects, percentages on a once preferred key gradually decreased, with corresponding increases on a reinforced key. Moulting slightly reduced response rates, body weight, and water consumption; however, no re-training after moulting was necessary. Response clusters, latencies, and inter-response times were quite uniform for all snakes.