Tuesday, October 22, 2013

Coupled Oscillator Dynamics of Vocal Turn-Taking in Monkeys

Attached is an interesting publication in Current Biology regarding vocalization patterns of Marmoset monkeys.  These monkeys were used to determine whether non-human primates exhibit cooperative vocal communication by taking turns speaking.  Results of these studies showed that they do indeed take turns in extended sequences and that the pattern is characteristic of a coupled oscillator (similar to humans).  Since marmosets are on a different branch of the evolutionary tree, this could very well be convergent evolution of vocal cooperation.

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