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Systematic mapping of the monkey inferior colliculus reveals enhanced low frequency sound representation.

Publication ,  Journal Article
Bulkin, DA; Groh, JM
Published in: Journal of neurophysiology
April 2011

We investigated the functional architecture of the inferior colliculus (IC) in rhesus monkeys. We systematically mapped multiunit responses to tonal stimuli and noise in the IC and surrounding tissue of six rhesus macaques, collecting data at evenly placed locations and recording nonresponsive locations to define boundaries. The results show a modest tonotopically organized region (17 of 100 recording penetration locations in 4 of 6 monkeys) surrounded by a large mass of tissue that, although vigorously responsive, showed no clear topographic arrangement (68 of 100 penetration locations). Rather, most cells in these recordings responded best to frequencies at the low end of the macaque auditory range. The remaining 15 (of 100) locations exhibited auditory responses that were not sensitive to sound frequency. Potential anatomical correlates of functionally defined regions and implications for midbrain auditory prosthetic devices are discussed.

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Published In

Journal of neurophysiology

DOI

EISSN

1522-1598

ISSN

0022-3077

Publication Date

April 2011

Volume

105

Issue

4

Start / End Page

1785 / 1797

Related Subject Headings

  • Sound
  • Sensory Receptor Cells
  • Neurology & Neurosurgery
  • Models, Animal
  • Male
  • Macaca mulatta
  • Inferior Colliculi
  • Female
  • Electrodes
  • Brain Mapping
 

Citation

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Bulkin, D. A., & Groh, J. M. (2011). Systematic mapping of the monkey inferior colliculus reveals enhanced low frequency sound representation. Journal of Neurophysiology, 105(4), 1785–1797. https://doi.org/10.1152/jn.00857.2010
Bulkin, David A., and Jennifer M. Groh. “Systematic mapping of the monkey inferior colliculus reveals enhanced low frequency sound representation.Journal of Neurophysiology 105, no. 4 (April 2011): 1785–97. https://doi.org/10.1152/jn.00857.2010.
Bulkin DA, Groh JM. Systematic mapping of the monkey inferior colliculus reveals enhanced low frequency sound representation. Journal of neurophysiology. 2011 Apr;105(4):1785–97.
Bulkin, David A., and Jennifer M. Groh. “Systematic mapping of the monkey inferior colliculus reveals enhanced low frequency sound representation.Journal of Neurophysiology, vol. 105, no. 4, Apr. 2011, pp. 1785–97. Epmc, doi:10.1152/jn.00857.2010.
Bulkin DA, Groh JM. Systematic mapping of the monkey inferior colliculus reveals enhanced low frequency sound representation. Journal of neurophysiology. 2011 Apr;105(4):1785–1797.

Published In

Journal of neurophysiology

DOI

EISSN

1522-1598

ISSN

0022-3077

Publication Date

April 2011

Volume

105

Issue

4

Start / End Page

1785 / 1797

Related Subject Headings

  • Sound
  • Sensory Receptor Cells
  • Neurology & Neurosurgery
  • Models, Animal
  • Male
  • Macaca mulatta
  • Inferior Colliculi
  • Female
  • Electrodes
  • Brain Mapping