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Audience affects decision-making in a marmoset communication network.

Camille R Toarmino1,2, Lauren Wong2, Cory T Miller3,2,4

  • 1Department of Psychology, University of California, San Diego, La Jolla, CA 92093, USA ctoarmin@ucsd.edu.

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Common marmosets adapt their communication strategies based on the vocal behavior of their audience. They adjust social decisions, showing flexible responses to virtual monkeys with distinct vocalizations.

Keywords:
antiphonal callingcommunication networksmarmosetsocial decision-making

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Area of Science:

  • Primate communication
  • Animal behavior
  • Social cognition

Background:

  • Audience composition significantly influences social decision-making in non-human primates.
  • Vocal behavior is a key component of primate communication and social interaction.

Purpose of the Study:

  • To investigate how the vocal behavior of multiple audience members affects communication decisions in common marmosets.
  • To understand the adaptability of social decision-making strategies in response to varying communication networks.

Main Methods:

  • Developed a novel experimental paradigm using virtual monkeys (VMs) with distinct vocal behaviors.
  • Common marmosets interacted with and learned about individual VMs' vocalizations.
  • Assessed marmosets' subsequent communicative decisions based on VM behavior.

Main Results:

  • Marmosets' propensity to interact with specific VMs was directly influenced by the VMs' individual vocal behaviors.
  • Subjects demonstrated adaptive social decision-making based on the audience's vocal characteristics.
  • The study highlights the flexibility of marmoset communication in response to social network dynamics.

Conclusions:

  • Common marmoset social decision-making is highly adaptive to the nuances of their immediate communication network.
  • Vocal behavior of audience members plays a critical role in shaping communicative interactions.
  • This research provides insights into the sophisticated social cognition of primates.