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Forward-masked thresholds for tones as a function of backward-masked thresholds for tones (Panel A) in the presence of a 1000-Hz tonal masker. Thresholds are the target to masker ratios in dB. Detection thresholds for tones masked by 1000-Hz tones as a function of detection thresholds for 1000-Hz tones masked by narrow-band noise (Panel B). Thresholds are the signal to noise ratios.
