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Time and space order effetcs in timed brightness discrimination of paired visual stimuli

Author

Summary, in English

Despite the considerable import of both response probability and response time for testing models of choice there is a dearth of chronometric studies of time- and space-order effects in discrimination of paired visual stimuli. In this study, systematic asymmetries in discriminating the brightness of paired visual stimuli are examined by way of binary response probability scaled in terms of log-odds ratios, as well as by signed response speed (i.e., the inverse of response time with the sign of the judged difference). For two stimuli separated by a time interval, psychometric and chronometric results revealed equivalent time-order effects, and when presented simultaneously, separated by a spatial interval, no effects of space order were found. Implications of these findings for random walk and diffusion models of sensory discrimination are discussed.

Publishing year

2008

Language

English

Publication/Series

Proceedings of the 24th Annual Meeting of the International Society for Psychophysics

Document type

Conference paper

Publisher

International Society for Psychophysics

Topic

  • Psychology

Conference name

Fechner Day, 2008

Conference date

0001-01-02

Conference place

Toronto, Canada

Status

Published