Date of Award

1973

Degree Type

Thesis

Degree Name

Master of Arts (MA)

Department

Psychology

Supervisor

Grant K. Smith

Language

English

Abstract

The purpose of the work reported in this thesis is to delineate the growth pattern of the fungiform papillae during development of the domestic Norway rat, and to investigate some behavioural interactions with that development. It was found that growth occurs in two distinct spurts; the first begins during labour and is at least in part under uterine influences; the second begins with the sampling of solid foods and can be profoundly influenced by the weaning process and by some factor in the nursing experience. The total population of fungiform papillae following the second growth period is greater than that in adults, and remains at this level throughout adolescence.

McMaster University Library

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