TABLE OF CONTENTS

LIST OF FIGURES………………………………. ………………………………………….. iii
ACKNOWLEDGEMENTS………………………………. ……………………………….. iv
ABSTRACT………………………………. …………………………………………………….. v
CHAPTER 1. GENERAL INTRODUCTION ………………………………………………. 1
Background ……………………………………………………………………………………… 1
Structural Description Theories ………………………………………………………….. 3
Template Theories ……………………………………………………………………………. 11
The “dip” in the recognition time function at 180˚ ………………………………… 15
CHAPTER 2. EXPERIMENT ONE ……………………………………………………………. 19
Methods …………………………………………………………………………………………… 22
Results … …………………………………………………………………………………………. 24
Discussion … ……………………………………………………………………………………. 27
CHAPTER 3 EXPERIMENT TWO …………………………………………………………… 28
Methods …………………………………………………………………………………………… 31
Results .. …………………………………………………………………………………………… 35
Discussion ………………………………………………………………………………………… 37
CHAPTER 4 GENERAL DISCUSSION ……………………………………………………. 39
REFERENCES ……………………………………………………………………………………………. 45