Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Having the quality of being spatially organized by tone or frequency
  • adj. Occupying a space dependent on frequency
  • adj. Having an orientation dependent on a frequency

Etymologies

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Examples

  • Overall, the results suggest that tonotopic mismatch may affect performance of CI users in complex listening environments.

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  • We found that local populations in A1 were highly heterogeneous in the large-scale tonotopic organization.

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  • Traditionally, Cochlear Implants were designed to stimulate the middle ear Cochlear that is tonotopic.

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  • They found evidence for two mirror-symmetric tonotopic maps encompassing the aforementioned three frequency-specific regions - the first connected a high-frequency region in HS with a low-frequency region in mid-HG and the second connected the same low-frequency region with a high-frequency region near the junction of HG and the superior temporal gyrus (STG).

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  • In contrast, fMRI studies of the tonotopic organization of human auditory cortex have typically imaged subjects in a single experimental session on activations in auditory cortex, the influence of these variables on tonotopic and non-tonotopic ACFs is not yet fully understood.

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  • Although most whole-brain studies have suggested that the two hemispheres differ in tonotopic organization, the results are inconsistent.

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  • While previous studies that have variously failed to find tonotopic organization in the right

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  • Figure 14 shows a schematic model of these fields superimposed on the grand mean tonotopic maps from the current study using a model similar to models of macaque auditory cortex A schematic model of human auditory cortical fields.

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  • Most previous fMRI studies of tonotopic organization have not examined the effect of sound intensity on frequency maps.

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  • Studies of tonotopic organization have revealed that the anatomical locations of frequency-specific regions have a coarse but consistent relationship to local anatomical landmarks in individual subjects

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  • The basilar membrane of the inner ear contains hair cells that are frequency selective, firing only in response to a certain band of frequencies. These are stretched out across the membrane from low frequencies to high; low-frequency sounds excite hair cells on one end of the basilar membrane, medium frequency sounds excite the hair cells in the middle, and high-frequency sounds excite them at the other end. . . . Because the different tones are spread out across the surface topography of the membrane, this is called a tonotopic map.
    Daniel J. Levitin, This Is Your Brain on Music: The Science of a Human Obsession (New York: Penguin Random House, 2007), p. 28

    June 19, 2017