Tag: archicortex


ALLOCORTEX

Introduction and Definition of Allocortex The allocortex represents a fundamental division of the cerebral cortex, distinguished anatomically and phylogenetically from the expansive six-layered structure known as the neocortex (or isocortex). By definition, the allocortex is cerebral cortex which possesses fewer than the six distinct cortical layers characteristic of the neocortex. This structural simplification, typically manifesting […]

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ARCHICORTEX

Definition and Phylogenetic Context The concept of the archicortex refers to the phylogenetically oldest component of the cerebral cortex, forming a crucial subdivision within the broader category known as the allocortex. This ancient neural structure is fundamentally distinct from the evolutionarily newer six-layered neocortex, which constitutes the vast majority of the human cerebral hemisphere. Specifically, […]

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