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    Auditory sequence processing reveals evolutionarily conserved regions of frontal cortex in macaques and humans

    Wilson, B. and Kikuchi, Y. and Sun, L. and Hunter, D. and Dick, Frederic and Smith, K. and Thiele, A. and Griffiths, T.D. and Marslen-Wilson, W.D. and Petkov, C.I. (2015) Auditory sequence processing reveals evolutionarily conserved regions of frontal cortex in macaques and humans. Nature Communications 6 , p. 8901. ISSN 2041-1723.

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    Abstract

    An evolutionary account of human language as a neurobiological system must distinguish between human-unique neurocognitive processes supporting language and evolutionarily conserved, domain-general processes that can be traced back to our primate ancestors. Neuroimaging studies across species may determine whether candidate neural processes are supported by homologous, functionally conserved brain areas or by different neurobiological substrates. Here we use functional magnetic resonance imaging in Rhesus macaques and humans to examine the brain regions involved in processing the ordering relationships between auditory nonsense words in rule-based sequences. We find that key regions in the human ventral frontal and opercular cortex have functional counterparts in the monkey brain. These regions are also known to be associated with initial stages of human syntactic processing. This study raises the possibility that certain ventral frontal neural systems, which play a significant role in language function in modern humans, originally evolved to support domain-general abilities involved in sequence processing.

    Metadata

    Item Type: Article
    School: Birkbeck Schools and Departments > School of Science > Psychological Sciences
    Research Centre: Brain and Cognitive Development, Centre for (CBCD)
    Depositing User: Administrator
    Date Deposited: 30 Nov 2015 14:05
    Last Modified: 02 Dec 2016 11:18
    URI: http://eprints.bbk.ac.uk/id/eprint/13648

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