Cochlear tuning properties: concurrent basilar membrane and single nerve fiber measurements.
Removal of perilymph from the cochlea has been reported to destroy the sharp tuning of cochlear neurons. That these changes are mechanical in origin is refuted by the concurrent recording of sharp neural tuning with broad basilar membrane responses from the same region of the partially drained cat cochlea. A second cochlear filter is therefore necessary.
D000200:Action Potentials; D000818:Animals; D001309:Auditory Threshold / Q000502:physiology; D001489:Basilar Membrane / Q000502:physiology*; D002415:Cats; D003051:Cochlea / Q000502:physiology*; D003056:Cochlear Nerve / Q000502:physiology*; D007758:Ear, Inner / Q000502:physiology*; D010498:Perilymph / Q000502:physiology