Layer 6b(Layer 7, Subplate, Deep Cortex, Claustral Complex)

Hierarchy level in atlas is 4: 3 superstructures include it.

abbreviation: CTXsp

Abbreviation

CTXsp

Species

Rat

Description of part

The structures listed here develop dorsal to the basal nuclei, and apparently deep to the cortical plate (although this remains controversial). Their projection neurons appear to use excitatory aminoacids rahter than GABA (which is used by most basal nuclear projection neurons). Many suggesyions in the older and more recent literature indicate that the deep amygdalar nuclei listed here are relatesd to the claustrum, and the endopiriform nucleus was often included in the older literature. Fiber tracts perhaps analogous to the extreme capsule lie superficial to layer 6b (Vanvelde et al. 1996) and the endopiriform nucleus. The embryological origin of isocortical layer 6b is unclear (subplate, or deep cortical plate, see next note).

Part type

gray matter

Nomenclature

Swanson-1998

Endorsement

The approach used by the collator Mihail Bota is endorsed by the author of the nomenclature.

Collator argument

The position of this brain part in hierarchy was collated from the associated reference

Reference

Author: Swanson LW
Title of Book: Brain Maps: Structure of the Rat Brain
Year: 1998
Pages: 196-213
Edition: second
Publisher: Elsevier