Language and fossils

This week I have published an opinion paper on language and paleoneurology, in a volume of Frontiers in Human Neuroscience dedicated to language, skulls, and brains. I review the fossil evidence on language, suggesting that most of such evidence concerns brain areas that are influenced by cranial structural constraints, or is based on speculations associated with individual bone remains. Thus, strictly speaking, there is no consistent evidence on language evolution when you deal with fossil anatomy. Ralph Holloway already stressed this point before, but it seems that most books and articles introducing this topic simply keep on stating the opposite, following a mantra (usually void of citations) according to which fossils must clearly reveal the cerebral (usually frontal) changes behind language evolution. The lack of scientific evidence in this context does not mean that there is no association between language and brain evolutionary changes in hominids, but just that fossils can provide only a very incomplete (and insufficient) view of this process. Firm statements, scientifically speaking, should be avoided, and relegated to storytelling and science marketing.

The dorsal and medial parietal areas, probably larger in Neanderthals and even more derived in modern humans, are not generally considered when discussing language processes, and most of the debate has been centred on frontal lobe functions. Nonetheless, the parietal areas are crucial for hand coordination and manipulative abilities, both factors that have always been regarded as influential in language evolution. Also, recent evidence suggests that language has an important embodied component: language coding passes through body experience and simulation, something which is profoundly associated with the functions of the deep parietal folds. Therefore, we should consider whether changes in the whole fronto-parietal system may have triggered or facilitated language in the human genus. The paper is open access.

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1 Response to “Language and fossils”


  1. 1 emilianobruner August 23, 2017 at 10:33

    More on language and paleoneurology!
    http://journal.frontiersin.org/article/10.3389/fnhum.2017.00427/full

    I think the study of the auditory system can be really fruitful …


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