title: Magnitude estimates of loudness adaption at 60 dB SPL.
abstract: Previous reports indicate that adaptation measured by the technique of successive magnitude estimations is not found above 30 dB SL (Fishken et al., 1977; and others). Although the present study confirmed this finding at 60 dB SPL for the original procedure, it was found that a modification of the magnitude estimation procedure resulted in significant loudness adaptation at this intensity. Introduction of a 20-dB increment for 5 s, every 30 s, resulted in a marked and statistically significant decline in successive loudness judgements of the 60-dB tone. In addition, the decline in reported loudness magnitude was cumulative and progressive throughout the 7-min duration of the monaural stimulus. This is typical of classical results found with simultaneous dichotic loudness balances.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008144:Loudness Perception; D008297:Male; D012000:Recruitment Detection, Audiologic / Q000379:methods*