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.
13648.pdf - Published Version
Available under License Creative Commons Attribution.
Download (941kB) | Preview
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.
|School:||Birkbeck Schools and Departments > School of Science > Psychological Sciences|
|Research Centre:||Brain and Cognitive Development, Centre for (CBCD)|
|Date Deposited:||30 Nov 2015 14:05|
|Last Modified:||02 Dec 2016 11:18|
Additional statistics are available via IRStats2.