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The architecture of functional lateralisation and its relationship to callosal connectivity in the human brain

Karolis, Vyacheslav R ; Corbetta, Maurizio ; Thiebaut de Schotten, Michel

Nature communications, 2019-03, Vol.10 (1), p.1417-1417, Article 1417 [Periódico revisado por pares]

England: Nature Publishing Group

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Título:
The architecture of functional lateralisation and its relationship to callosal connectivity in the human brain
Autor: Karolis, Vyacheslav R ; Corbetta, Maurizio ; Thiebaut de Schotten, Michel
Assuntos: Brain ; Brain architecture ; Brain Mapping ; Conduction ; Corpus Callosum - anatomy & histology ; Corpus Callosum - physiology ; Cortex ; Decision making ; Dominance, Cerebral - physiology ; Functional Laterality - physiology ; Functionals ; Humans ; Life Sciences ; Multivariate Analysis ; Nerve Net - physiology ; Neural networks ; Neurons and Cognition ; Signs and symptoms ; Taxonomy
É parte de: Nature communications, 2019-03, Vol.10 (1), p.1417-1417, Article 1417
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
PMCID: PMC6441088
Descrição: Functional lateralisation is a fundamental principle of the human brain. However, a comprehensive taxonomy of functional lateralisation and its organisation in the brain is missing. Here, we report the first complete map of functional hemispheric asymmetries in the human brain, reveal its low dimensional structure, and its relationship with structural inter-hemispheric connectivity. Our results suggest that the lateralisation of brain functions is distributed along four functional axes: symbolic communication, perception/action, emotion, and decision-making. The similarity between this finding and recent work on neurological symptoms give rise to new hypotheses on the mechanisms that support brain recovery after a brain lesion. We also report that cortical regions showing asymmetries in task-evoked activity have reduced connections with the opposite hemisphere. This latter result suggests that during evolution, brain size expansion led to functional lateralisation to avoid excessive conduction delays between the hemispheres.
Editor: England: Nature Publishing Group
Idioma: Inglês

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The architecture of functional lateralisation and its relationship to callosal connectivity in the human brain

Karolis, Vyacheslav R ; Corbetta, Maurizio ; Thiebaut de Schotten, Michel

England: Nature Publishing Group

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