Frontal cortex activity during the production of diverse social communication calls in marmoset monkeys

Lingyun Zhao () and Xiaoqin Wang ()
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Lingyun Zhao: The Johns Hopkins University School of Medicine
Xiaoqin Wang: The Johns Hopkins University School of Medicine

Nature Communications, 2023, vol. 14, issue 1, 1-17

Abstract: Abstract Vocal communication is essential for social behaviors in humans and non-human primates. While the frontal cortex is crucial to human speech production, its role in vocal production in non-human primates has long been questioned. It is unclear whether activities in the frontal cortex represent diverse vocal signals used in non-human primate communication. Here we studied single neuron activities and local field potentials (LFP) in the frontal cortex of male marmoset monkeys while the animal engaged in vocal exchanges with conspecifics in a social environment. We found that both single neuron activities and LFP were modulated by the production of each of the four major call types. Moreover, neural activities showed distinct patterns for different call types and theta-band LFP oscillations showed phase-locking to the phrases of twitter calls, suggesting a neural representation of vocalization features. Our results suggest important functions of the marmoset frontal cortex in supporting the production of diverse vocalizations in communication.

Date: 2023
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DOI: 10.1038/s41467-023-42052-5

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