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Updated: Mar 17, 2026

Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception
Published on: August 9, 2024
Group size, vocal grooming and the origins of language
1Department of Experimental Psychology, University of Oxford, South Parks Rd, Oxford, OX1 3UD, UK. robin.dunbar@psy.ox.ac.uk.
Abstract:
I argue that speech and language evolved through a series of stages individually designed to break through successive glass ceilings on group size. Language was simply the last of these (and hence evolved late in hominin evolution), but its precursors (laughter and singing) each played a crucial role in preparing the way for speech production.
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