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  • Title: Differential encoding of rapid changes in sound amplitude by second-order auditory neurons.
    Author: Frisina RD, Smith RL, Chamberlain SC.
    Journal: Exp Brain Res; 1985; 60(2):417-22. PubMed ID: 4054285.
    Abstract:
    Single-cell recordings from the anesthetized gerbil revealed that neurons in the ventral cochlear nucleus, the most peripheral nucleus of the central auditory system, differentially encode a functionally relevant acoustic feature--amplitude modulation. Onset units show the strongest phase--locked responses to amplitude-modulated sounds, followed in order by chopper, primarylike-with-notch and primarylike units. All these neurons show enhanced responses relative to auditory-nerve fibers which provide their ascending inputs. This enhancement occurs over a 90 dB range of sound levels.
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