IiG Compensatory Innervation in Development and Evolution

S L Pallas, Georgia State University, Atlanta, GA, USA

© 2007 Elsevier Inc. All rights reserved.

1.10.1 Introduction 153

1.10.2 Evolution Exploits Developmental Events 154 Brain Evolution Results from Minor Variations on a Basic Vertebrate Plan 154 Developmental Mechanisms can Accommodate New Neurons and Trigger Matching Changes in Connected Populations 154

1.10.3 Target Specificity and Its Role in Development and Evolution 155 Population Matching in the Retinotectal System 155 Role of Sensory Deprivation in Specificity of Thalamocortical Pathways 157 Cross-Modal Plasticity in the Retinogeniculocortical System 158 Evolutionary Evidence of Cross-Modal Respecification of Cortical Identity 163

1.10.4 Summary and Conclusions 163

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