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This paper is written to shew that 'Behaviourism' and psychiatric concepts have a relationship to neurology. Previous writers are criticized for not stressing the significance of the post-natal development of the neo-pallium.
The development of the nervous system is described, shewing how the neo-pallium is laid upon and integrated with the paleëncephalon and afferent and efferent fibres develop in advance of the association centres. The ancestral reflex patterns which are present at birth are integrated into more complex ones as the nervous system develops. The laying down of new structure and the integration of the old into the new is a continuous process which goes on until maturity, if integration is not possible at any phase of development, the neural patterns are not annihilated but repressed, the patterns themselves remaining unchanged.
Consciousness is the result of activity at the highest functioning level and two types will be present, one in association with the primary cortical projection areas, and the other at the level of the afferent and efferent tracts at which the association centres have myelinated, which is the highest functioning arc. In the former stimuli will produce a consciousness of sensation only, which will be meaningless and for which there will be no outlet for discharge; in the latter these sensations will be capable of