TABLE OF CONTENTS Preface Certification Dedication Acknowledgements Table of contents List of tables List of figures Abstract CHAPTER ONE 1. Introduction 1.1 cannabis sativa 1.2 cannabis and cannabinoids 1.3 Vernonia amygdalina CHAPTER TWO 2 Literature Review 2.1 Effects of aqueous extract of Vernonia amygdalina and cannabis sativa on neurobehavioral activities. 2.2 Decreasing or disabling neuronal functions....