FIG. 3.

Stimulus ranking by the marginally predicted probability of tinnitus suppression back-calculated from the regression coefficients of a logistic regression model that included main effects of stimulus type and stimulus frequency. White noise (gray bar) was used as the referent category for comparison. The condition with the greatest likelihood of achieving suppression was amplitude-modulated tones in the 6,000–9,000 Hz region. In other words, one could expect 60% of tinnitus cases to be suppressed to some degree with a high-frequency, amplitude-modulated tone.