In two experiments, I simultaneously measured response time, accuracy, and response bias in an auditory intensity discrimination task to look for evidence of stimulus-driven attention orienting in auditory frequency space. The results demonstrated that a cue tone caused an apparently involuntary orienting of attention to the cue's frequency region, allowing faster and more accurate processing of a subsequent target tone when it occurred at the same frequency as the cue than when it occurred at a different frequency. Relationships between response time, accuracy, and bias measures also allowed masking and other effects to be separated from attention-orienting effects in these experiments.
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