Perception & Psychophysics
Stein, London, Wilkinson, and Price (1996) reported the presence of cross-modal enhancement of perceived visual intensity: Participants tended to rate weak lights as brighter when accompanied by a concurrent pulse of white noise than when presented alone. In the present study, two methods were used to determine whether the enhancement reflects an early-stage sensory process or a later-stage decisional process, such as a response bias. First, the enhancement was eliminated when the noise accompanied the light on only 25% versus 50% of the trials. Second, the enhancement was absent when tested with a paired-comparison method. These findings are consistent with the hypothesis that the sound-induced enhancement in judgments of brightness reflects a response bias, rather than an early sensory process—that is, enhancement is the result of a relatively late decisional process.
MSU Digital Commons Citation
Arieh, Yoav; Marks, Lawrence E.; and Odgaard, Eric C., "Cross-modal enhancement of perceived brightness: Sensory interaction versus response bias" (2003). Department of Psychology Faculty Scholarship and Creative Works. 20.
Odgaard, Eric C., Yoav Arieh, and Lawrence E. Marks. "Cross-modal enhancement of perceived brightness: sensory interaction versus response bias." Perception & psychophysics 65, no. 1 (2003): 123-132.
Cognition and Perception Commons, Cognitive Psychology Commons, Design of Experiments and Sample Surveys Commons, Health Psychology Commons, Medical Neurobiology Commons, Musculoskeletal, Neural, and Ocular Physiology Commons, Nervous System Commons, Other Statistics and Probability Commons, Sense Organs Commons