The Anatomical Substrate for Telencephalic Function

1 Introduction: Theoretical Basis for Telencephalic function.- 1.1 Telencephalic function.- 1.2 Dual Sensorimotor and Selection System.- 1.3 Position of the Pallium.- 1.4 Working Hypotheses.- 1.5 Choice of Animal.- 1.5.1 Scientific Grounds.- 1.5.2 Practical Grounds.- 1.6 Methods Employed.- 2 Methods and Results: Study of Prosencephalic Connectivity and Structural Organization.- 2.1 Extra-experimental Procedures.- 2.2 Experimental Procedures.- 2.2.1 Preparation.- 2.2.2 Horseradish Peroxidase Determination.- 2.2.3 General Histological Techniques.- 2.3 Horseradish Peroxidase Labeling.- 2.4 Display of the Forebrain and Injection Sites.- 2.4.1 Nissl Stain.- 2.4.2 Reconstructions.- 2.4.3 Cross Sections.- 2.4.4 Locations of the Injection Sites.- 2.5 Horseradish Peroxidase Injections in the Pallium (1-12).- 2.5.1 Description of the Format.- 2.5.2 Descriptions of the HRP Transport (Injections 1-12).- 2.6 Horseradish Peroxidase Injections in Extrapallial Telencephalic Areas (13-16).- 2.6.1 Description of the Format.- 2.6.2 Descriptions of the HRP Transport (Injections 13-16).- 2.7 Horseradish Peroxidase Injections in Extratelencephalic Regions (17-22).- 2.7.1 Description of the Format.- 2.7.2 Descriptions of the HRP Transport (Injections 17-22).- 3 Methods and Results: Electron Microscopic Study of HRP-Labeled Elements.- 3.1 Preparation of the Electron Microscopic Material.- 3.2 Electron Microscopic Material.- 3.3 Conclusions.- 4 Methods and Results: Distributions of Opioids, Substance P, and Serotonin.- 4.1 Immunohistochemistry.- 4.2 Distributions.- 4.2.1 Substance P and Opioids.- 4.2.2 Serotonin.- 4.3 Conclusions.- 5 Discussion: Hodological, Functional, and Comparative Concepts.- 5.1 Connectivity of the Telencephalon.- 5.1.1 Input Systems to the Pallium.- 5.1.2 Intrinsic Connections of the Pallium.- 5.1.3 Efferents of the Pallium.- 5.1.4 Efferents and Afferents of the Striatum.- 5.1.5 Dual Information Processing System of the Telencephalon.- 5.1.5.1 Pallium and Striatum Complex.- 5.1.5.2 Amygdaloid Complex.- 5.1.5.3 Position of the Pallium in Relation to Other Prosencephalic Structures.- 5.2 Midline Crossing Connections.- 5.2.1 Basis for Left-Right Interactions.- 5.2.2 Commissures.- 5.2.3 Bilateral Projections.- 5.2.4 Conclusions.- 5.3 Function of the Pallium.- 5.3.1 Mechanism of Association.- 5.3.2 Synaptic Triad.- 5.3.3 Pallial-Striatal Interactions.- 5.3.4 Conclusions and Implications.- 5.4 Comparisons with Other Vertebrates.- 5.4.1 Comparison with Other Amphibians.- 5.4.2 Comparison with Fishes.- 5.4.3 Comparison with Reptiles.- 5.4.4 Comparison with Birds.- 5.4.5 Comparison with Mammals.- 5.5 Conclusions.- 6 Summary.- References.