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Signal detection theory was used to evaluate psychophysical performance limits imposed by the random nature of AN discharges and by random-noise stimuli. The power-spectrum model of masking was used to estimate psychophysical auditory filters from predicted AN-model detection thresholds for a tone signal in fixed-level notched-noise maskers. Results demonstrate that the role of suppression in broadening peripheral tuning in response to the noise masker has implications for the interpretation of psychophysical auditory-filter estimates. Specifically, the estimated psychophysical auditory-filter equivalent rectangular bandwidths (ERBs) that were derived from the nonlinear AN model with suppression always overestimated the ERBs of the low-level peripheral model filters. Further, this effect was larger for an 8-kHz signal than for a 2-kHz signal, suggesting a potential characteristic-frequency (CF) dependent bias in psychophysical estimates of auditory filters due to the increase in strength of cochlear nonlinearity with increases in CF.<\/jats:p>","DOI":"10.1121\/1.1436071","type":"journal-article","created":{"date-parts":[[2002,7,26]],"date-time":"2002-07-26T14:10:47Z","timestamp":1027692647000},"page":"996-1011","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":34,"title":["Quantifying the implications of nonlinear cochlear tuning for auditory-filter estimates"],"prefix":"10.1121","volume":"111","author":[{"given":"Michael G.","family":"Heinz","sequence":"first","affiliation":[{"name":"Speech and Hearing Sciences Program, Division of Health Sciences and Technology, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts\u200902139"},{"name":"and Hearing Research Center, Biomedical Engineering Department, Boston University, 44 Cummington Street, Boston, Massachusetts\u200902215"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"H. 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