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Patterns of olivocochlear axonal branches.


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.

SUBMITTER: Kishan AU 

PROVIDER: S-EPMC3279734 | biostudies-other | 2011 Oct

REPOSITORIES: biostudies-other

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Patterns of olivocochlear axonal branches.

Kishan Amar U AU   Lee Charles C CC   Winer Jeffery A JA  

Open journal of neuroscience 20111001


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 loo  ...[more]

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