Human orbitofrontal cortex: Cytoarchitecture and quantitative immunohistochemical parcellation

Patrick R. Hof, Elliotf J. Mufson, John Morrison

Research output: Contribution to journalArticle

105 Citations (Scopus)

Abstract

The primate orbitofrontal cortex is a component of the paralimbic cortical “belt” and consists of several distinct areas. It is involved in high order association functions that include the integration of emotion, behavior, and various sensory processes. To define the cyto‐ and chemo‐architectonic organization of the human orbitofrontal cortex, we have used antibodies to the nonphosphorylated neurofilament triplet protein and to the calcium‐binding proteins parvalbumin and cairetinin. Immunohistochemistry revealed labeling patterns corresponding to the cytoarchitecture defined by Nissi preparations. Neurofilament protein‐immunoreactive pyramidal neurons were located only in layers V–VI in the agranular posterior orbitofrontal cortex, whereas they were distributed in both layers III and V–VI in the anteromedial and anterolateral granular regions. The intermediate dysgranular portion of the orbitofrontal cortex represented a transition zone with a progressive decrease in layer III labeled pyramidal cell numbers posteriorly. The distribution of parvalbumin‐ and cairetinin‐immunoreactive interneurons was more homogeneous, although the posteromedial region and the cortex of the inferior rostral sulcus had slightly lower parvalbumin‐positive neuron counts than the other orbitofrontal areas. Parvalbumin immunoreactivity in the neuropil exhibited a high degree of regional specialization in that it was consistently less intense in the cortex of the intermediate and posterior part of the gyrus rectus, whereas the other orbitofrontal areas had a very dense nei staining in layers III to V. Also, there was a dense plexus of parvalbumin immunoreactive fibers restricted to layer I in the posterolateral orbitofrontal cortex, and patches of neuropil staining in layer III of the inferior rostral sulcus. These region‐specific neuropil staining patterns may correspond to the distribution of parvalbumin‐immunoreactive thalamocortical projections to distinct domains of the orbitofrontal cortex. This regional parcellation of the human orbitofrontal cortex as defined by specific neuronal markers, may represent an anatomical substrate for the localization of the various functions attributed to this poorly understood cortical region. © 1995 Wiley‐Liss, Inc.

Original languageEnglish (US)
Pages (from-to)48-68
Number of pages21
JournalJournal of Comparative Neurology
Volume359
Issue number1
DOIs
StatePublished - Jan 1 1995
Externally publishedYes

Fingerprint

Prefrontal Cortex
Parvalbumins
Neuropil
Pyramidal Cells
Staining and Labeling
Neurofilament Proteins
Intermediate Filaments
Interneurons
Primates
Emotions
Cell Count
Immunohistochemistry
Neurons
Antibodies
Proteins

Keywords

  • calcium‐binding proteins
  • chemoarchitecture
  • human cerebral cortex
  • neurofilament protein
  • prefrontal cortex

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Human orbitofrontal cortex : Cytoarchitecture and quantitative immunohistochemical parcellation. / Hof, Patrick R.; Mufson, Elliotf J.; Morrison, John.

In: Journal of Comparative Neurology, Vol. 359, No. 1, 01.01.1995, p. 48-68.

Research output: Contribution to journalArticle

@article{f08d4f7a0ce14381aeaf25441bbb0650,
title = "Human orbitofrontal cortex: Cytoarchitecture and quantitative immunohistochemical parcellation",
abstract = "The primate orbitofrontal cortex is a component of the paralimbic cortical “belt” and consists of several distinct areas. It is involved in high order association functions that include the integration of emotion, behavior, and various sensory processes. To define the cyto‐ and chemo‐architectonic organization of the human orbitofrontal cortex, we have used antibodies to the nonphosphorylated neurofilament triplet protein and to the calcium‐binding proteins parvalbumin and cairetinin. Immunohistochemistry revealed labeling patterns corresponding to the cytoarchitecture defined by Nissi preparations. Neurofilament protein‐immunoreactive pyramidal neurons were located only in layers V–VI in the agranular posterior orbitofrontal cortex, whereas they were distributed in both layers III and V–VI in the anteromedial and anterolateral granular regions. The intermediate dysgranular portion of the orbitofrontal cortex represented a transition zone with a progressive decrease in layer III labeled pyramidal cell numbers posteriorly. The distribution of parvalbumin‐ and cairetinin‐immunoreactive interneurons was more homogeneous, although the posteromedial region and the cortex of the inferior rostral sulcus had slightly lower parvalbumin‐positive neuron counts than the other orbitofrontal areas. Parvalbumin immunoreactivity in the neuropil exhibited a high degree of regional specialization in that it was consistently less intense in the cortex of the intermediate and posterior part of the gyrus rectus, whereas the other orbitofrontal areas had a very dense nei staining in layers III to V. Also, there was a dense plexus of parvalbumin immunoreactive fibers restricted to layer I in the posterolateral orbitofrontal cortex, and patches of neuropil staining in layer III of the inferior rostral sulcus. These region‐specific neuropil staining patterns may correspond to the distribution of parvalbumin‐immunoreactive thalamocortical projections to distinct domains of the orbitofrontal cortex. This regional parcellation of the human orbitofrontal cortex as defined by specific neuronal markers, may represent an anatomical substrate for the localization of the various functions attributed to this poorly understood cortical region. {\circledC} 1995 Wiley‐Liss, Inc.",
keywords = "calcium‐binding proteins, chemoarchitecture, human cerebral cortex, neurofilament protein, prefrontal cortex",
author = "Hof, {Patrick R.} and Mufson, {Elliotf J.} and John Morrison",
year = "1995",
month = "1",
day = "1",
doi = "10.1002/cne.903590105",
language = "English (US)",
volume = "359",
pages = "48--68",
journal = "Journal of Comparative Neurology",
issn = "0021-9967",
publisher = "Wiley-Liss Inc.",
number = "1",

}

TY - JOUR

T1 - Human orbitofrontal cortex

T2 - Cytoarchitecture and quantitative immunohistochemical parcellation

AU - Hof, Patrick R.

AU - Mufson, Elliotf J.

AU - Morrison, John

PY - 1995/1/1

Y1 - 1995/1/1

N2 - The primate orbitofrontal cortex is a component of the paralimbic cortical “belt” and consists of several distinct areas. It is involved in high order association functions that include the integration of emotion, behavior, and various sensory processes. To define the cyto‐ and chemo‐architectonic organization of the human orbitofrontal cortex, we have used antibodies to the nonphosphorylated neurofilament triplet protein and to the calcium‐binding proteins parvalbumin and cairetinin. Immunohistochemistry revealed labeling patterns corresponding to the cytoarchitecture defined by Nissi preparations. Neurofilament protein‐immunoreactive pyramidal neurons were located only in layers V–VI in the agranular posterior orbitofrontal cortex, whereas they were distributed in both layers III and V–VI in the anteromedial and anterolateral granular regions. The intermediate dysgranular portion of the orbitofrontal cortex represented a transition zone with a progressive decrease in layer III labeled pyramidal cell numbers posteriorly. The distribution of parvalbumin‐ and cairetinin‐immunoreactive interneurons was more homogeneous, although the posteromedial region and the cortex of the inferior rostral sulcus had slightly lower parvalbumin‐positive neuron counts than the other orbitofrontal areas. Parvalbumin immunoreactivity in the neuropil exhibited a high degree of regional specialization in that it was consistently less intense in the cortex of the intermediate and posterior part of the gyrus rectus, whereas the other orbitofrontal areas had a very dense nei staining in layers III to V. Also, there was a dense plexus of parvalbumin immunoreactive fibers restricted to layer I in the posterolateral orbitofrontal cortex, and patches of neuropil staining in layer III of the inferior rostral sulcus. These region‐specific neuropil staining patterns may correspond to the distribution of parvalbumin‐immunoreactive thalamocortical projections to distinct domains of the orbitofrontal cortex. This regional parcellation of the human orbitofrontal cortex as defined by specific neuronal markers, may represent an anatomical substrate for the localization of the various functions attributed to this poorly understood cortical region. © 1995 Wiley‐Liss, Inc.

AB - The primate orbitofrontal cortex is a component of the paralimbic cortical “belt” and consists of several distinct areas. It is involved in high order association functions that include the integration of emotion, behavior, and various sensory processes. To define the cyto‐ and chemo‐architectonic organization of the human orbitofrontal cortex, we have used antibodies to the nonphosphorylated neurofilament triplet protein and to the calcium‐binding proteins parvalbumin and cairetinin. Immunohistochemistry revealed labeling patterns corresponding to the cytoarchitecture defined by Nissi preparations. Neurofilament protein‐immunoreactive pyramidal neurons were located only in layers V–VI in the agranular posterior orbitofrontal cortex, whereas they were distributed in both layers III and V–VI in the anteromedial and anterolateral granular regions. The intermediate dysgranular portion of the orbitofrontal cortex represented a transition zone with a progressive decrease in layer III labeled pyramidal cell numbers posteriorly. The distribution of parvalbumin‐ and cairetinin‐immunoreactive interneurons was more homogeneous, although the posteromedial region and the cortex of the inferior rostral sulcus had slightly lower parvalbumin‐positive neuron counts than the other orbitofrontal areas. Parvalbumin immunoreactivity in the neuropil exhibited a high degree of regional specialization in that it was consistently less intense in the cortex of the intermediate and posterior part of the gyrus rectus, whereas the other orbitofrontal areas had a very dense nei staining in layers III to V. Also, there was a dense plexus of parvalbumin immunoreactive fibers restricted to layer I in the posterolateral orbitofrontal cortex, and patches of neuropil staining in layer III of the inferior rostral sulcus. These region‐specific neuropil staining patterns may correspond to the distribution of parvalbumin‐immunoreactive thalamocortical projections to distinct domains of the orbitofrontal cortex. This regional parcellation of the human orbitofrontal cortex as defined by specific neuronal markers, may represent an anatomical substrate for the localization of the various functions attributed to this poorly understood cortical region. © 1995 Wiley‐Liss, Inc.

KW - calcium‐binding proteins

KW - chemoarchitecture

KW - human cerebral cortex

KW - neurofilament protein

KW - prefrontal cortex

UR - http://www.scopus.com/inward/record.url?scp=0029128081&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029128081&partnerID=8YFLogxK

U2 - 10.1002/cne.903590105

DO - 10.1002/cne.903590105

M3 - Article

C2 - 8557847

AN - SCOPUS:0029128081

VL - 359

SP - 48

EP - 68

JO - Journal of Comparative Neurology

JF - Journal of Comparative Neurology

SN - 0021-9967

IS - 1

ER -