Genetic Determinants of Individual Variation in the Superior Temporal Sulcus of Chimpanzees (Pan troglodytes) - Archive ouverte HAL
Article Dans Une Revue Cerebral Cortex Année : 2022

Genetic Determinants of Individual Variation in the Superior Temporal Sulcus of Chimpanzees (Pan troglodytes)

William Hopkins
Oliver Coulon
Institut de Neurosciences de la Timone
CV
Adrien Meguerditchian
Station de primatologie
Laboratoire de psychologie cognitive
Institute of Language, Communication and the Brain
CV
Nicky Staes
  • Fonction : Auteur
Chet Sherwood
  • Fonction : Auteur
Steven Schapiro
  • Fonction : Auteur
Jean-Francois Mangin
  • Fonction : Auteur
Brenda Bradley
  • Fonction : Auteur

Résumé

Abstract The superior temporal sulcus (STS) is a conserved fold that divides the middle and superior temporal gyri. In humans, there is considerable variation in the shape, folding pattern, lateralization, and depth of the STS that have been reported to be associated with social cognition and linguistic functions. We examined the role that genetic factors play on individual variation in STS morphology in chimpanzees. The surface area and depth of the STS were quantified in sample of 292 captive chimpanzees comprised of two genetically isolated population of individuals. The chimpanzees had been previously genotyped for AVPR1A and KIAA0319, two genes that play a role in social cognition and communication in humans. Single nucleotide polymorphisms in the KIAA0319 and AVPR1A genes were associated with average depth as well as asymmetries in the STS. By contrast, we found no significant effects of these KIA0319 and AVPR1A polymorphism on surface area and depth measures for the central sulcus. The overall findings indicate that genetic factors account for a small to moderate amount of variation in STS morphology in chimpanzees. These findings are discussed in the context of the role of the STS in social cognition and language in humans and their potential evolutionary origins.

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Neurosciences
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https://hal.science/hal-03871725

Soumis le : vendredi 25 novembre 2022-12:03:43

Dernière modification le : mardi 15 octobre 2024-03:24:38

Archivage à long terme le : dimanche 26 février 2023-18:51:24

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hal-03871725 , version 1 (25-11-2022)

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William Hopkins, Oliver Coulon, Adrien Meguerditchian, Nicky Staes, Chet Sherwood, et al.. Genetic Determinants of Individual Variation in the Superior Temporal Sulcus of Chimpanzees (Pan troglodytes). Cerebral Cortex, 2022, ⟨10.1093/cercor/bhac183⟩. ⟨hal-03871725⟩

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