Abstract
Several experiments were performed in which brief tonal target bursts centered around 820 Hz were preceded and followed by interference signals. These interference signals included tones and noise bursts having a variety of durations, intensities, and center frequencies. Interference signals were ipsilateral or contralateral to the ear receiving the tonal targets. Backward recognition interference was observed with tonal maskers when target-masker frequency separations were within 10 Hz. No interference was observed with noise maskers. Aggregate results from these experiments suggest that disruptions in tonal recognition must occur after a preliminary perceptual analysis. Subject Classification: [43]65.54, [43]65.75.

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