In cochlear implants, the various electrodes are implanted at various tonotopic
locations in the inner ear.
There have been studies that showed a certain level of intramodal plasticity in the auditory cortex, particularly in the tonotopic
area of the primary auditory cortex (A1).
Some in vivo studies have explored the nucleus ovoidalis for the tonotopic
organization and responsiveness of its neurons to different acoustic stimuli.
Third, the increase in response amplitude at 3 kHz during cold pressor may be related to the tonotopic
nature of the basilar membrane within the cochlea.
In rats exposed perinatally, PCB-95 alters the balance of excitatory/inhibitory currents and disrupts the tonotopic
map of the primary auditory cortex (Kenet et al.
Hysell Oviedo compared neuronal activity in mouse brain slices that were cut to preserve the connectivity along the tonotopic
For example, the auditory region contains the tonotopic
map where neighboring neurons respond to similar sound frequencies in an orderly sequence from high pitch to low pitch.
This map reflects the fact that the cochlea is organized in a tonotopic
fashion with high-frequency sound producing maximum stimulation of cells in the base and low-frequency sound in the apex.
This MRI study also demonstrated that tinnitus is accompanied by a change in the tonotopic
map of the auditory cortex.
basilar membrane of the Organ of Corti becomes damaged from high frequencies and can result in hearing loss.
The maps in the cochlea and the auditory cortex are called tonotopic
maps while the map in V1 is called a retinotopic map.
contrast, has a tonotopic
structure in that sensitivity to the frequency