Table 2 summarizes the behavioral performance during the OERP paradigm. CHR patients and healthy controls correctly rejected blank air at a rate of almost 90% and detected the presentation of H2S stimuli, with detection accuracy improving with greater odor intensity. Independent of odor intensity, patients had greater performance accuracy than controls (Tab. 2, left column). Although these effects were essentially also observed in the sensitivity measure dL (Fig. 2), only the increase in odor detection performance was preserved in the corresponding repeated measures ANOVA (Tab. 2, right column), suggesting that a difference in response bias between patients and controls contributed to the significant group difference in odor detection accuracy.
