Arcuate Fasciculus: Evolutionary Convergence in Marmosets and Humans DOI Creative Commons
Yufan Wang, Luqi Cheng, Deying Li

et al.

Published: April 21, 2025

Abstract The marmoset is a highly vocal platyrrhine monkey that shares key anatomical and functional features with humans, providing unique opportunity to illuminate the phylogenetic origins of diverging connectivity profiles their transformations throughout evolution. Although similarity vocalization between humans has been reported, whether marmosets possess an arcuate fasciculus homolog not known. In this study, we delineated white matter tracts in marmosets, establishing homologies those observed other primates, including macaques, chimpanzees, humans. presence was confirmed by tracer ultra-high-resolution diffusion magnetic resonance imaging datasets. Using blueprint approach, compared cortical patterns across these species found terminates ventral frontal cortex, exceeds something corroborated quantitative analyses after transforming all brains into common space. To explore fasciculus’ support for species-specific vocalizations, activation communications were associated connectivity. Collectively, our findings suggest dorsal pathway, which emerged early evolution, evolved convergently despite distant kindship.

Language: Английский

Arcuate Fasciculus: Evolutionary Convergence in Marmosets and Humans DOI Creative Commons
Yufan Wang, Luqi Cheng, Deying Li

et al.

Published: April 21, 2025

Abstract The marmoset is a highly vocal platyrrhine monkey that shares key anatomical and functional features with humans, providing unique opportunity to illuminate the phylogenetic origins of diverging connectivity profiles their transformations throughout evolution. Although similarity vocalization between humans has been reported, whether marmosets possess an arcuate fasciculus homolog not known. In this study, we delineated white matter tracts in marmosets, establishing homologies those observed other primates, including macaques, chimpanzees, humans. presence was confirmed by tracer ultra-high-resolution diffusion magnetic resonance imaging datasets. Using blueprint approach, compared cortical patterns across these species found terminates ventral frontal cortex, exceeds something corroborated quantitative analyses after transforming all brains into common space. To explore fasciculus’ support for species-specific vocalizations, activation communications were associated connectivity. Collectively, our findings suggest dorsal pathway, which emerged early evolution, evolved convergently despite distant kindship.

Language: Английский

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