CONTENTS -- 1 Introduction -- 2 The Basal Ganglia -- 2.1 Pathways Within the Basal Ganglia -- 2.2 Parkinson's Disease -- 2.3 Deep Brain Stimulation -- 3 STN Activity Recorded in Vitro: Brain Slices -- 3.1 Spontaneous Activity -- 3.2 Depolarizing and Hyperpolarizing Inputs -- 3.3 Ionic Mechanisms of a Plateau Potential -- 3.4 Synaptic Inputs -- 3.5 High-Frequency Stimulation of STN Cells -- 3.6 Intrinsic Versus Extrinsic Properties: Bursts -- 4 STN Activity Recorded in Vitro: Dissociated Cell Cultures -- 4.1 Experimental Set-up -- 4.2 Spontaneous Activity -- 4.3 Addition of Acetylcholine -- 4.4 Electrical Stimulation -- 5 STN Cell Models and Simulation of Neuronal Networks -- 5.1 Otsuka's Model -- 5.2 Terman and Rubin's Model -- 5.3 Comparison of the Otsuka Model with the Terman/Rubin Model -- 5.4 The Multi-compartment STN Model of Gillies and Willshaw -- 5.5 Intra-nuclear Network Models -- 5.6 Inter-nuclear Network Models -- 6 Comparison of Part I and Part II -- 6.1 Recurrent STN Axons -- 6.2 Inter-neurons in the STN -- 6.3 Fibre Tracts around and in the STN -- 6.4 Ca 2+ Receptors -- 6.5 Three-Dimensional Modelling -- 6.6 Types of Projection Neurons -- 6.7 Neurotransmitter Input Versus Receptors in the STN -- 6.8 The Pedunculopontine Nucleus -- 6.9 Nigro-subthalamic Connections -- 6.10 Another Cortico-subthalamic Loop -- 6.11 Nissl-Based Subdivision of the STN -- Appendix 1 Model Parameter Values Otsuka et al. 2004 -- Appendix 2 Model Parameter Values Terman et al. 2002 -- Rubin and Terman (2004) -- References -- Index.