area Iam - BrainInfo

area Iam (Iam)

The term area Iam refers to one of four subdivisions of the agranular orbitofrontal cortex (OFa-p). Located at the posterior border of the orbital gyri of the human cerebral cortex, it is defined by internal structure on the basis of multiple stains. It is bounded laterally by area Iapm, medially by the anterior olfactory nucleus, rostrally by area 13l, and caudally by the agranular sector of the insula. The other three subdivisions of the agranular orbitofrontal cortex are area Iapm, area Iai, and area Ial. For the relations of this segmentation and terminology to others, see Ongur-2003. Its equivalent in the macaque is area Iam (macaque) ( Carmichael-1994 ). For equivalent areas in the rat and mouse, see agranular insular cortex.

Also known as: area Iam, medial agranular insular area

NeuroNames ID: 3502

All Names & Sources

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Showing 3 synonym(s)

Name:

area Iam

Language:

English

Organism:

human

Source:

Ongur-2003

Citation:

J Comp Neurol. 2003 Jun 2;460(3):425-49.

Source Title:

Architectonic subdivision of the human orbital and medial prefrontal cortex

Name:

Iam

Language:

acronym

Organism:

human

Source:

Ongur-2003

Citation:

J Comp Neurol. 2003 Jun 2;460(3):425-49.

Source Title:

Architectonic subdivision of the human orbital and medial prefrontal cortex

Name:

medial agranular insular area

Language:

English

Organism:

macaque

Source:

Carmichael-1994

Citation:

Source Title:

Architectonic subdivision of the orbital and medial prefrontal cortex in the macaque monkey

Illustrations

Showing 1 illustration(s)

diagrams of medial and
orbital prefrontal cortex in
human and macaque

No specie structures found

No specie structures available for this concept.

Models Where It Appears

orbitomedial prefrontal cortex hierarchy

refers to the organization of substructures of the orbitomedial prefrontal cortex of the human as described in Ongur-2003. The organization is the same in the macaque, except for a few minor differences in internal structure and names based on topology ( Carmichael-1994 ).

orbitomedial prefrontal cortex

orbital frontal cortex

agranular orbitofrontal cortex

area Iam

area Iapm

area Iai

area Ial

Topographic Model of Human Cerebral Cortex

The topographic model of human cerebral cortex is a closed partitive hierarchical model of cerebral cortical structure in the human. The cerebral cortex is segmented on the basis of internal structure, connectivity, and/or functions of cortical areas. It is designed to update the comprehensive early twentieth century parcellations of Brodmann and of von Economo and Koskinas and their successors. A work in progress, it integrates the most authoritative, comprehensive, and recent parcellations and nomenclatures from peer-reviewed publications and neuroanatomical texts. For an equivalent model in the rodent, Search BrainInfo for ' Functional CNS Model - Rat '. This segmentation of the human cerebral cortex, based on a combination of internal structure, connectivity, and function, complements the classical segmentation of the cerebral cortex into lobes, lobules, and gyri based on sulcal patterns: For the classical segmentation, see ' cerebral cortex ' and click 'Locus in Brain Hierarchy'.