Journal of Mathematical Psychology volume 50, issue 3, P242-250 2006 DOI: 10.1016/j.jmp.2005.12.006 View full text
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Christopher W. Doble, Jean-Claude Falmagne, Bruce G. Berg, Curt Southworth

Abstract: The exponent in the power function modeling of the near-miss to Weber's law is known to depend on several experimental factors, such as tone frequency and the presence or absence of noise. This paper presents data that confirm a theoretical argument that the nearmiss exponent also depends on the definition of 'just-noticeably different' used empirically. Intensity discrimination data were collected for pure, 1000-Hz tones presented in quiet. Referent sound pressure levels ranged from 40 to 80 dB SPL in 10-dB …

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