A computational model for rate-level functions from cat auditory-nerve fibers
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Cited by (71)
A simplified physiological model of rate-level functions of auditory-nerve fibers
2021, Hearing ResearchCitation Excerpt :For example, functions have been described as ‘flat saturating’, ‘sloping saturating’, and ‘straight’ (e.g., Sachs and Abbas, 1974; Winter et al., 1990). For ANFs having similar characteristic frequencies (CFs), the rate-level function for a stimulus frequency at CF appears to gradually change on a continuum from flat saturating to sloping saturating (and, in guinea pig, further to straight) as ANF threshold increases (Sachs and Abbas, 1974; Sachs et al., 1989; Winter et al., 1990; but see Palmer and Evans, 1980). Due to the tight negative correlation of threshold and spontaneous rate (e.g., Schmiedt, 1989; Ohlemiller and Echteler, 1990; Winter et al., 1990; Ohlemiller et al., 1991; Yates, 1991; Tsuji and Liberman, 1997; Taberner and Liberman, 2005), the shape of the rate-level function also varies with spontaneous rate (Winter et al., 1990; Sumner and Palmer, 2012).
Input-output curves of low and high spontaneous rate auditory nerve fibers are exponential near threshold
2018, Hearing ResearchCitation Excerpt :The present data provide actual experimental, quantitative evidence for the relevance of that assumption, as will be shown below. Rate-level curves have been modeled such that the effective rate (average rate minus spontaneous rate) more or less mimics the magnitude of basilar membrane displacement (Geisler, 1990; Sachs et al., 1989; Yates et al., 1990). In these applications, SR is handled as a separate quantity that represents an intrinsic property of individual ANFs.
Birds - same thing, but different? Convergent evolution in the avian and mammalian auditory systems provides informative comparative models
2011, Hearing ResearchCitation Excerpt :The BM response at the characteristic frequency is characterised by a compressive nonlinearity which is the signature of the cochlear amplifier in mammals: the response initially grows linearly at low sound levels until the amplification saturates and the response curve breaks into a segment of shallower or compressive growth for further increases in sound level (reviewed, e.g., in Cooper et al., 2008). Afferent RL functions are thought to result from the combination of this compressive mechanical response serving as the input, and a saturating nonlinearity representing the hair cell and the individual synapse (Sachs et al., 1989; Yates, 1990b). Because individual afferent fibres synapsing on the same inner hair cell may have different response thresholds (reviewed in Taberner and Liberman, 2005), they are driven over their sensitive range by different parts of the common input mechanical response, resulting in 3 basic types of RL function (Fig. 3A).
Cochlear aging disrupts the correlation between spontaneous rate and sound-level coding in auditory nerve fibers
2023, Journal of NeurophysiologyMolecular signatures define subtypes of auditory afferents with distinct peripheral projection patterns and physiological properties
2023, Proceedings of the National Academy of Sciences of the United States of America