"To better understand how the auditory system extracts speech signals in the presence of noise,
discrimination thresholds for the second formant frequency were predicted with simulations of
auditory-nerve responses.
These predictions employed either average-rate information or combined
rate and timing information, and either populations of model fibers tuned across a wide range of
frequencies or a subset of fibers tuned to a restricted frequency range.
In general, combined temporal
and rate information for a small population of model fibers tuned near the formant frequency was
most successful in replicating the trends reported in behavioral data for formant-frequency
discrimination. ..."
Reference:
1 .
Tan Q, Carney LH (2006) Predictions of formant-frequency discrimination in noise based on model auditory-nerve responses. J Acoust Soc Am 120:1435-45 [PubMed]
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