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  The Organization of the Primate Insular Cortex

Evrard, H. (2019). The Organization of the Primate Insular Cortex. Frontiers in Neuroanatomy, 13: 43, pp. 1-21. doi:10.3389/fnana.2019.00043.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-5CDB-0 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-9A1E-F
Genre: Journal Article

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Evrard, HC1, 2, Author              
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1Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497798              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Abstract: Long perceived as a primitive and poorly differentiated brain structure, the primate insular cortex recently emerged as a highly evolved, organized and richly connected cortical hub interfacing bodily states with sensorimotor, environmental and limbic activities. This insular interface likely substantiates emotional embodiment and has the potential to have a key role in the interoceptive shaping of cognitive processes, including perceptual awareness. In the present review, we present a novel working model of the insular cortex, based on an accumulation of neuroanatomical and functional evidence obtained essentially in the macaque monkey. This model proposes that interoceptive afferents that represent the ongoing physiological status of all the organs of the body are first being received in the granular dorsal fundus of the insula or “primary interoceptive cortex”, then processed through a series of dysgranular poly-modal “insular stripes”, and finally integrated in anterior agranular areas that serve as an additional sensory platform for visceral functions and as an output stage for efferent autonomic regulation. One of the agranular areas hosts the specialized von Economo and Fork neurons, which could provide a decisive evolutionary advantage for the role of the anterior insula in the autonomic and emotional binding inherent to subjective awareness.

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 Dates: 2019-032019-05
 Publication Status: Published online
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 Identifiers: DOI: 10.3389/fnana.2019.00043
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Title: Frontiers in Neuroanatomy
  Abbreviation : Front Neuroanat
Source Genre: Journal
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Publ. Info: Lausanne, Switzerland : Frontiers Research Foundation
Pages: - Volume / Issue: 13 Sequence Number: 43 Start / End Page: 1 - 21 Identifier: ISSN: 1662-5129
CoNE: https://pure.mpg.de/cone/journals/resource/1662-5129