Intensity discrimination of clicks: The effects of click bandwidth and background noise

Intensity discrimination of filtered clicks was investigated. For broadband and high-pass filtered clicks, the data are consistent with Weber’s law. For low-pass filtered clicks, however, the Weber fraction decreases with increasing click intensity. In contrast to earlier findings, the addition of background noise to a broadband click raised the threshold for detection but did not markedly affect the Weber fraction. Theoretical implications of these results are discussed.