Cross-modal enhancement of perceived brightness: Sensory interaction versus response bias

Eric C. Odgaard, Yoav Arieh, Lawrence E. Marks

Research output: Contribution to journalArticle

76 Citations (Scopus)

Abstract

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, enhancement was eliminated when the noise accompanied the light on only 25% versus 50% of the trials. Second, 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.

Original languageEnglish
Pages (from-to)123-132
Number of pages10
JournalPerception and Psychophysics
Volume65
Issue number1
DOIs
StatePublished - 1 Jan 2003

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Cross-modal enhancement of perceived brightness : Sensory interaction versus response bias. / Odgaard, Eric C.; Arieh, Yoav; Marks, Lawrence E.

In: Perception and Psychophysics, Vol. 65, No. 1, 01.01.2003, p. 123-132.

Research output: Contribution to journalArticle

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