Pragmatic flexibility in primate vocal production
2018
The production of vocalizations by monkeys and apes is often described as highly constrained and fundamentally different from human speech. We review recent field studies of
baboonsand bonobos that suggest greater flexibility. Calls function to reduce the uncertainty inherent in social interactions. Vocal production, like individuals’ responses to calls, is subtly tuned to variation in the social context, including a caller's assessment of how a listener is likely to respond. We suggest parallels between the decision to vocalize and laboratory,
neurophysiologicaltests of social decisions. We also discuss implications for theories of language evolution.
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