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Developmental mechanisms underlying the evolution of human cortical circuits

In Nature Reviews Neuroscience, NOMIS researcher Franck Polleux and Pierre Vanderhaeghen discuss the genomic modifications and changes in neurodevelopmental mechanisms that underpin the human brain’s unique complexity and function.

Franck Polleux (Photo copyright John Abbott for Columbia University)

Abstract

The brain of modern humans has evolved remarkable computational abilities that enable higher cognitive functions. These capacities are tightly linked to an increase in the size and connectivity of the cerebral cortex, which is thought to have resulted from evolutionary changes in the mechanisms of cortical development. Convergent progress in evolutionary genomics, developmental biology and neuroscience has recently enabled the identification of genomic changes that act as human-specific modifiers of cortical development. These modifiers influence most aspects of corticogenesis, from the timing and complexity of cortical neurogenesis to synaptogenesis and the assembly of cortical circuits. Mutations of human-specific genetic modifiers of corticogenesis have started to be linked to neurodevelopmental disorders, providing evidence for their physiological relevance and suggesting potential relationships between the evolution of the human brain and its sensitivity to specific diseases.

Continue reading the Nature Reviews Neuroscience publication: Developmental mechanisms underlying the evolution of human cortical circuits

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Professor of neuroscience and a member of the Mortimer B. Zuckerman Mind Brain Behavior Institute
Columbia Zuckerman Institute
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