4.7 Article

Divergence in the functional organization of human and macaque auditory cortex revealed by fMRI responses to harmonic tones

Journal

NATURE NEUROSCIENCE
Volume 22, Issue 7, Pages 1057-+

Publisher

NATURE PUBLISHING GROUP
DOI: 10.1038/s41593-019-0410-7

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Funding

  1. National Institutes of Health [EY13455, EY023322]
  2. McDonnell Foundation
  3. National Science Foundation [1353571]
  4. NSF Science and Technology Center for Brains, Minds, and Machines [CCF-1231216]
  5. Howard Hughes Medical Institute (LSRF Postdoctoral Fellowship)
  6. Center for Functional Neuroimaging Technologies at MGH [P41EB015896]
  7. National Institute of Biomedical Imaging and Bioengineering (MGH)
  8. NIH Shared Instrumentation Grant Program and/or High-End Instrumentation Grant Program [S10RR021110]
  9. Intramural Research Program at the NEI
  10. NIMH
  11. NINDS
  12. Division Of Integrative Organismal Systems
  13. Direct For Biological Sciences [1353571] Funding Source: National Science Foundation

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We report a difference between humans and macaque monkeys in the functional organization of cortical regions implicated in pitch perception. Humans but not macaques showed regions with a strong preference for harmonic sounds compared to noise, measured with both synthetic tones and macaque vocalizations. In contrast, frequency-selective tonotopic maps were similar between the two species. This species difference may be driven by the unique demands of speech and music perception in humans.

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