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Functions of the orbitofrontal cortex. Taketoshi ONO 1 , Eiichi TABUCHI 1 1Department of Physiology, Toyama Medical & Pharmaceutical University pp.56-71
Published Date 1993/2/10
DOI https://doi.org/10.11477/mf.1431900309
  • Abstract
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This article focuses on the anatomy, neurotransmitters, and functions of the monkey and human orbitofrontal cortex (OFCx).

The cortex of the anterior pole of the mammalian brain, prefrontal cortex (PFCx), has specific cytoarchitectonic features in the primates, such as the frontal granular cortex. The PFCx is defined as the part of the cerebral cortex that receives projections from the mediodorsal nucleus of the thalamus (MD). The OFCx belongs to the PFCx and lies in the orbital surface of the frontal lobe. The OFCx receives afferent projections from the pars magnocellularis of the MD, the inferior and superior temporal cortices (visual and auditory association areas), the temporal pole, the posterior parietal cortex, other regions in the PFCx, the insular cortex (primary taste area), the prepyriform cortex (olfactory area), the anterior cingulate cortex, the entorhinal cortex, the amygdala, and the substantia innominata. Some efferent fibers from the OFCx project to the amygdala, the hypothalamus, the subthalamic nucleus, the septum, the mesencephalic ventral tegmental area, and the pons, which are related to emotion. Another efferent from the OFCx projects to the frontal cortex (motor and its related area), the anterior cingulate cortex, the putamen, ventromedial part of the caudate nucleus and the claustrum, which are related to motor regulation. Other efferents project to the temporal pole, the inferior temporal cortex, the posterior parietal cortex, the insular cortex, and other regions in the PFCx.


Copyright © 1993, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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