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. 2011 Oct 12:1:2.

Patterns of olivocochlear axonal branches

Amar U Kishan  1 , Charles C Lee, Jeffery A Winer
Affiliations

Patterns of olivocochlear axonal branches

Amar U Kishan et al. Open J Neurosci. .

Abstract

The olivocochlear (OC) pathway is the source of major feedback control of ascending acoustic information. Two main patterns of axonal branching are evident at this and other levels of the auditory pathway: long-distance collaterals and branches involved in feedback-control loops. Only a minority of OC neurons project to both cochlea, consistent with a role for the system in sound localization. OC branches to the ventral cochlear nucleus provide the anatomical substrate for a feedback control loop that could aid in modulating the intensity of acoustic information being conveyed to higher cortical levels while still dampening the overall intensity of signaling from the cochlea itself.

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Figures

Figure 1
Figure 1
Schematic illustration of projections of the olivocochlear system. A. Projections of the ascending pathway from the cochlea to the superior olivary complex. B. Targets of some LOC branched projections. C. Targets of some MOC branched projections.
See this image and copyright information in PMC

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