Tables Sitemap
Edelman, Gerald M.
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Structural Themes in the Evolution of the Nervous System
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Main Themes
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Concommitants
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Bilateral Symmetry
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Orienting and Aversive Movements
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Decussation
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Sensorimotor Coordination
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Sensorimotor Metamerism
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Modularity
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Progessive Cephalization
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Special Senses
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Fusion of Structures
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Enlargement
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Modular Repetition of Microscopic Structures
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Overlapping Innervation
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Degeneracy
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Compaction of Tracts
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Somatotopy
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Body Mapping of Sensory Sheets and Motor Ensembles
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Parallelism of Sensorimotor Systems
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Reentry and Classification Couples
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Increasing Nuclei and Laminae
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Multilayered Structures
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Vertical and Horizontal Circuit Organization
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Increasing Variety of Cell Types
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Based upon Table 6.1 from:
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Porges, Stephen
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Neural Regulation of the Heart as a Function of Vertebrate Phylogeny
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Group
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CHM
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DVC
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SNS
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AD/m
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VVC
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Jawless Fish
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X +
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(X +)
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Cartilaginous Fish
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X +
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X -
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Bony Fish
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X +
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X -
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X +
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Amphibians
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X +
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X -
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X +
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Reptiles
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X +
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X -
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X +
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X +
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Mammals
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X +
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X -
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X +
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X +
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X -
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Abbreviations: CHM, chomaffin tissue; DVC, dorsal vagal complex; SNS, sympathetic nervous system; AD/m, adrenal medulla; and VVC, ventral vagal complex. X indicates cranial nerve ten, i.e. the vagus nerve. Cardio-excitatory influence, X + and cardio-inhibitory influence, X - Based upon Table 2. from:
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The Three Phylogenetic Stages of The Neural Control of The Heart
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Phylogenetic Stage
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ANS Component
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Behavioral Function
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Lower Motor Neurons
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I
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Unmyelinated Parasympathetic Vagus
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Immobilization Feigning Death, Passive Avoidance
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Dorsal Motor Nucleus (DMNX)
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II
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Myelinated Sympathetic-Adrenal
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Mobilization Active Avoidance
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Spinal Cord
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III
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Myelinated Parasympathetic Vagus (Vagal Brake)
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Social Communication, Self-soothing and Calming, Inhibition of Sympathetic-Adrenal
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Nucleus ambiguus (NA)
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Based upon Table 2. from:
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Vagal Strategies
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Reptiles
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Mammals
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Ambient State
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Low DMNX
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High NA/Low DMNX
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Response to Novelty
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Increase DMNX
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Decrease NA/Increase DMNX
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Based upon Table 3. from:
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