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. Author manuscript; available in PMC: 2008 Oct 27.
Published in final edited form as: J Acoust Soc Am. 2006 Aug;120(2):978–990. doi: 10.1121/1.2213573

FIG. 2.

FIG. 2

Masked-detection thresholds for a wide range of masker modulation depths. Two of the listeners (S2 and S3) exhibited a nonmonotonic dependence of sensitivity on masker level; their thresholds were lower for a masker level of -28 dB than in the unmasked condition. The three right-most points in each panel are replotted from Fig. 1; these masker levels consistently caused “positive” masking without causing overmodulation.