Johnston, Timothy D.

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There are 6 item/s.

TitleDateViewsBrief Description
Early experience with food items of differing sizes and optimal foraging in golden hamsters (Mesocricetus auratus) 1989 47 The experiments in this dissertation were designed to examine the role of early experience on later food choice by golden hamsters. In Experiment 1, the profitabilities of three sizes of Noyes food pellets (20, 45, and 94 mg) were assessed. The order...
Olfactory processing of spatial information in hamsters 1989 25 The purpose of this research was to elucidate the nature and ontogeny of spatial information processing in hamsters. The study consisted of a series of spatial tasks administered to hamsters reared under different conditions. Experiment 1 demonstrate...
The role of early experience in the development of specialized and diverse preferences for foraging techniques by white-footed mice (Peromyscus leucopus) 1989 18 Investigations of foraging behavior (within the Neo-Darwinian framework of Optimal Foraging Theory) have focused on the economic choices made by adult animals. Little research has been directed toward the development of these choice strategies. The o...
Rearing condition affects the development of allocentric responding and hippocampal n-methyl-d-aspartate receptors in rats 1990 22 Rats were reared in one of two conditions; RESTRICTED and OPEN. Rats reared in the RESTRICTED condition were reared without access to stable patterns of visual landmarks and rats reared in the OPEN condition had access to such landmarks. The rats rea...
A developmental model for the evolution of paternal care 1995 19 A number of theories have been presented to explain the evolution of paternal care in mammals. However, these theories do not explain the origin of paternal care behaviors within a species. The purpose of this paper was to present a developmental mod...
Sex differences in the development of spatial behavior in montane voles : experiential and hormonal influences 1995 13 In animals with polygamous mating systems, in which males' territories overlap the territories of two or more females, males perform spatial tasks with fewer errors than do females. While it has been suggested that these differences persist due to na...