Cortex

1 Introduction; 2 Where is the Cortex?; 3 Analysis of the Neuropil; 4 Density of Neurons; 5 Density of Synapses; 6 Comparison Between Synaptic and Neuronal Density; 7 Density of Axons; 8 Comparison Between the Densities of Neurons, Synapses and Axons; 9 Microscopic Evidence of the Spacing of Synapses on Axons; 10 Statistics of the Synapses Along the Axons; 11 Density of Dendrites; 12 Different Kinds of Synapses; 13 Interim Discussion; 14 Morphology of Neurons: Golgi Pictures; 15 Classification of Cortical Neurons; 16 Quantitative Aspects of the Three Types of Neurons. Methods; 17 Length of the Axonal Ramification of Individual Neurons; 18 Length of the Dendritic Trees; 19 Relative Density of Axons and Dendrites; 20 The Likelihood of a Synapse Between Two Pyramidal Cells; 21 Peters'Rule and Whites Exceptions; 22 Dendritic Spines; 23 Synapses on Spineless Dendrites; 24 In Search of Engrams; 25 Postnatal Changes, Possibly Due to Learning, in the Guinea Pig Cortex; 26 Cortico-Cortical Connections; 27 Cortical Architectonics; 28 Layers; 29 Cyto- and myeloarchitectonics: Two aspects of the same reality; 30 Special Areas; 31 Map of the Cortex; 32 How Cortex-Like Is the Hippocampus?; 33 Summary of Statistical Anatomy and Conclusions Thereof; 34 Comparative Aspects: Statistical Measures in Larger Brains; 35 Global Activity, Cell Assemblies and Synfire Chains; 36 Feature Detectors and Orientation Columns; 37 Human language: the ultimate challenge for a theory of the cortex. An Essay; References; Subject Index