Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

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

Patching, Geoffrey LU ; Englund, Mats and Hellström, Åke (2008) Fechner Day, 2008
Abstract
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... (More)
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. (Less)
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Proceedings of the 24th Annual Meeting of the International Society for Psychophysics
publisher
International Society for Psychophysics
conference name
Fechner Day, 2008
conference location
Toronto, Canada
conference dates
0001-01-02
language
English
LU publication?
yes
id
4205c355-946f-4604-8c6e-98229c1bd7d6 (old id 2374873)
date added to LUP
2016-04-04 11:20:12
date last changed
2018-11-21 21:04:10
@inproceedings{4205c355-946f-4604-8c6e-98229c1bd7d6,
  abstract     = {{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.}},
  author       = {{Patching, Geoffrey and Englund, Mats and Hellström, Åke}},
  booktitle    = {{Proceedings of the 24th Annual Meeting of the International Society for Psychophysics}},
  language     = {{eng}},
  publisher    = {{International Society for Psychophysics}},
  title        = {{Time and space order effetcs in timed brightness discrimination of paired visual stimuli}},
  url          = {{https://lup.lub.lu.se/search/files/5749842/2374878.pdf}},
  year         = {{2008}},
}