Efferent regulation of hair cells in the turtle cochlea.

  title={Efferent regulation of hair cells in the turtle cochlea.},
  author={Jonathan J Art and Andrew C. Crawford and Robert Fettiplace and Paul Albert Fuchs},
  journal={Proceedings of the Royal Society of London. Series B, Biological sciences},
  volume={216 1204},
Intracellular recordings were made from hair cells in the isolated cochlea of the turtle to characterize the inhibition achieved by the cochlea's efferent innervation. A short train of shocks delivered to the efferent axons produced in the hair cells slow hyperpolarizing synaptic potentials which could be reversed by shifting the membrane potential more negative than about -80 mV. Throughout the efferent hyperpolarization, there was a reduction of up to 25-fold in the amplitude of the receptor… CONTINUE READING

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