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  Phylogenetic comparative analysis of the cerebello-cerebral system in 34 species highlights primate-general expansion of cerebellar crura I-II

Magielse, N., Toro, R., Steigauf, V., Abbaspour, M., Eickhoff, S. B., Heuer, K., et al. (2023). Phylogenetic comparative analysis of the cerebello-cerebral system in 34 species highlights primate-general expansion of cerebellar crura I-II. Communications Biology, 6(1): 1188. doi:10.1038/s42003-023-05553-z.

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 Creators:
Magielse, Neville1, 2, 3, Author           
Toro, Roberto4, Author
Steigauf, Vanessa5, Author
Abbaspour, Mahta6, 7, Author
Eickhoff, Simon B.1, 3, Author
Heuer, Katja4, 8, Author           
Valk, Sofie L.1, 2, 3, Author                 
Affiliations:
1Institute of Neuroscience and Medicine, Research Center Jülich, Germany, ou_persistent22              
2Otto Hahn Group Cognitive Neurogenetics, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_3222264              
3Institute of Systems Neuroscience, University Hospital Düsseldorf, Germany, ou_persistent22              
4Unité de Neuroanatomie Appliquée et Théorique, Institut Pasteur, Paris, France, ou_persistent22              
5Department of Biology, Northern Michigan University, Marquette, MI, USA, ou_persistent22              
6Berlin School of Mind and Brain, Humboldt University Berlin, Germany, ou_persistent22              
7Department of Neurology, Charité University Medicine Berlin, Germany, ou_persistent22              
8Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              

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Free keywords: Biological anthropology; Coevolution; Intelligence; Neural circuits
 Abstract: The reciprocal connections between the cerebellum and the cerebrum have been suggested to simultaneously play a role in brain size increase and to support a broad array of brain functions in primates. The cerebello-cerebral system has undergone marked functionally relevant reorganization. In particular, the lateral cerebellar lobules crura I-II (the ansiform) have been suggested to be expanded in hominoids. Here, we manually segmented 63 cerebella (34 primate species; 9 infraorders) and 30 ansiforms (13 species; 8 infraorders) to understand how their volumes have evolved over the primate lineage. Together, our analyses support proportional cerebellar-cerebral scaling, whereas ansiforms have expanded faster than the cerebellum and cerebrum. We did not find different scaling between strepsirrhines and haplorhines, nor between apes and non-apes. In sum, our study shows primate-general structural reorganization of the ansiform, relative to the cerebello-cerebral system, which is relevant for specialized brain functions in an evolutionary context.

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Language(s): eng - English
 Dates: 2023-03-162023-11-072023-11-222023-11-22
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1038/s42003-023-05553-z
PMID: 37993596
PMC: PMC10665558
 Degree: -

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Project name : -
Grant ID : ANR-19-DATA-0025; ANR-21-CE45-0016
Funding program : -
Funding organization : French Agence Nationale de la Recherche (ANR)
Project name : -
Grant ID : 101033485
Funding program : Horizon 2020
Funding organization : European Union
Project name : -
Grant ID : InterLabs-0015
Funding program : -
Funding organization : Helmholtz Association’s Initiative and Networking Fund
Project name : -
Grant ID : -
Funding program : -
Funding organization : Canada First Research Excellence Fund (CFREF)
Project name : -
Grant ID : -
Funding program : -
Funding organization : Projekt DEAL

Source 1

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Title: Communications Biology
  Abbreviation : Commun. Biol.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: London : Springer Nature
Pages: - Volume / Issue: 6 (1) Sequence Number: 1188 Start / End Page: - Identifier: ISSN: 2399-3642
CoNE: https://pure.mpg.de/cone/journals/resource/2399-3642