Auditory sensitivity provided by self-tuned critical oscillations of hair cells.

  title={Auditory sensitivity provided by self-tuned critical oscillations of hair cells.},
  author={S{\'e}bastien Camalet and Thomas Duke and Frank J{\"u}licher and J. B. Prost},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={97 7},
We introduce the concept of self-tuned criticality as a general mechanism for signal detection in sensory systems. In the case of hearing, we argue that active amplification of faint sounds is provided by a dynamical system that is maintained at the threshold of an oscillatory instability. This concept can account for the exquisite sensitivity of the auditory system and its wide dynamic range as well as its capacity to respond selectively to different frequencies. A specific model of sound… CONTINUE READING
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