Architecture of functional lateralisation in the human brain

Dr. Slava Karolis, Mr. Maurizio Corbetta and Dr. Michel Thiebaut de Schotten

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Aug 08, 2018
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Received: 23rd July 18

Functional lateralisation is a fundamental principle of the human brain. However, a comprehensive taxonomy of functional lateralisation and its organization in the brain is missing. 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, and that cortical regions which show that asymmetries in task-evoked activity have reduced connections with the opposite hemisphere.

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This is an abstract of a preprint hosted on an independent third party site. It has not been peer reviewed but is currently under consideration at Nature Communications.

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