Abbreviation

ISO

Species

Rat

Description of part

The cerebral cortex has been divided into areas that may(isocortical) or may not (allocortical) be fitted into a basic six-layered scheme (Vogt and Vogt 1919), numbered 1-6 here. These terms are preferred to the equivalent homotypical and heterotypical of the Vogt pupil, Brodmann (1909), and to the terms neocortical, archicortical, and paleocortical (Ariens Kappers 1909) all of which imply unsubstantiated phylogenetic and ontogenetic attributes (see Lorente de No 1934, Ebbeson 1980). The olfactory cortex (including superficial parts of the amygdala) and hippocampal formation form the allocortex, as interpreted here. A traditional approach to naming cortical areas, based on Brodmann work and ultimately general to all mammals, has been adapted here. For another scheme, idiosyncratic to the rat, see Zilles and Wree (1995). Names of the 6 isocortical layers from superficial to deep, would include: 1. molecular layer, 2. superficial supragranular layer, 3. deep supragranular layer, 4. granular layer, 5. infragranular pyramidal layer, and 6. polymorph layer

Part type

gray matter

Nomenclature

Swanson-1992

Endorsement

The approach used by the collator Mihail Bota is not endorsed by the author of the nomenclature.

Collator argument

The hierarchy was constructed and adapted according to the information found in the Rat Brain Atlas, Swanson 1992. We have considered three types of brain structures: grisea (neural masses), fiber tracts, and ventricles. The hierarchical tree was constructed by taking into account two criteria: the set of classes and subclasses of the basic cell groups and fiber systems of the rat CNS and the topological positions of structures relative to superstructures.

Reference

Isocortex - Mouse - Dong-2007