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  Intrinsic functional architecture of the macaque dorsal and ventral lateral frontal cortex

Goulas, A., Stiers, P., Hutchison, R. M., Everling, S., Petrides, M., & Margulies, D. S. (2017). Intrinsic functional architecture of the macaque dorsal and ventral lateral frontal cortex. Journal of Neurophysiology, 117(3), 1084-1099. doi:10.1152/jn.00486.2016.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-0DFA-5 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-1D4A-B
Genre: Journal Article

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 Creators:
Goulas, Alexandros1, Author              
Stiers, P.1, Author
Hutchison, R. M.1, Author
Everling, S.1, Author
Petrides, M.1, Author
Margulies, Daniel S.2, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Max Planck Research Group Neuroanatomy and Connectivity, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_1356546              

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 Abstract: Investigations of the cellular and connectional organization of the lateral frontal cortex (LFC) of the macaque monkey provide indispensable knowledge for generating hypotheses about the human LFC. However, despite numerous investigations, there are still debates on the organization of this brain region. In vivo neuroimaging techniques such as resting-state functional magnetic resonance imaging (fMRI) can be used to define the functional circuitry of brain areas, producing results largely consistent with gold-standard invasive tract-tracing techniques and offering the opportunity for cross-species comparisons within the same modality. Our results using resting-state fMRI from macaque monkeys to uncover the intrinsic functional architecture of the LFC corroborate previous findings and inform current debates. Specifically, within the dorsal LFC, we show that 1) the region along the midline and anterior to the superior arcuate sulcus is divided in two areas separated by the posterior supraprincipal dimple, 2) the cytoarchitectonically defined area 6DC/F2 contains two connectional divisions, and 3) a distinct area occupies the cortex around the spur of the arcuate sulcus, updating what was previously proposed to be the border between dorsal and ventral motor/premotor areas. Within the ventral LFC, the derived parcellation clearly suggests the presence of distinct areas: 1) an area with a somatomotor/orofacial connectional signature (putative area 44), 2) an area with an oculomotor connectional signature (putative frontal eye fields), and 3) premotor areas possibly hosting laryngeal and arm representations. Our results illustrate in detail the intrinsic functional architecture of the macaque LFC, thus providing valuable evidence for debates on its organization.

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Language(s): eng - English
 Dates: 2016-06-142016-11-172017-03-072017-03-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1152/jn.00486.2016
PMID: 28003408
PMC: PMC5340881
Other: Epub 2016
 Degree: -

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Title: Journal of Neurophysiology
  Other : J. Neurophysiol.
Source Genre: Journal
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Publ. Info: Bethesda, MD : The Society
Pages: - Volume / Issue: 117 (3) Sequence Number: - Start / End Page: 1084 - 1099 Identifier: ISSN: 0022-3077
CoNE: https://pure.mpg.de/cone/journals/resource/954925416959