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  1. Disambiguated Indexical Pointing as a Tipping Point for the Explosive Emergence of Language Among Human Ancestors.Donald M. Morrison - 2020 - Biological Theory 15 (4):196-211.
    Drawing on convergent work in a broad range of disciplines, this article uses the tipping point paradigm to frame a new account of how early human ancestors may have first broken free from, as Bickerton calls it, the “prison of animal communication.” Under building pressure for an enhanced signaling system capable of supporting joint attentional-intentional activities, a cultural tradition of disambiguated indexical pointing (a finger point disambiguated by a facial expression, vocalization, or other gesture), combined with increasingly sophisticated mindreading circuitry (...)
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