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Time- and Space-Order Effects in Timed Discrimination of Brightness and Size of Paired Visual Stimuli

Patching, Geoffrey LU ; Englund, Mats and Hellström, Åke (2012) In Journal of Experimental Psychology: Human Perception and Performance 38(4). p.915-940
Abstract
Despite the importance of both response probability and response time for testing models of choice there is a dearth of chronometric studies examining systematic asymmetries that occur over time- and space-orders in the method of paired comparisons. In this study, systematic asymmetries in discriminating the magnitude of paired visual stimuli are examined by way of log-odds ratios of binary responses as well as by signed response speed. Hierarchical Bayesian modeling is used to map response probabilities and response speed onto constituent psychological process, and processing capacity is also assessed using response time distribution hazard functions. The findings include characteristic order effects that change systematically in... (More)
Despite the importance of both response probability and response time for testing models of choice there is a dearth of chronometric studies examining systematic asymmetries that occur over time- and space-orders in the method of paired comparisons. In this study, systematic asymmetries in discriminating the magnitude of paired visual stimuli are examined by way of log-odds ratios of binary responses as well as by signed response speed. Hierarchical Bayesian modeling is used to map response probabilities and response speed onto constituent psychological process, and processing capacity is also assessed using response time distribution hazard functions. The findings include characteristic order effects that change systematically in magnitude and direction with changes in the magnitude and separation of the stimuli. After Hellström (1979, 2000), Sensation Weighting (SW) model analyses show that such order effects are reflected in the weighted accumulation of noisy information about the difference between stimulus values over time, and interindividual differences in weightings asymmetries are related to the relative processing capacity of participants. An account of sensation weighting based on the use of reference level information and maximization of signal-to-noise ratios is posited, which finds support from theoretically driven analyses of behavioral data. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Time-order effects, space-order effects, adaptive perception, wave theory, diffusion model, processing capacity.
in
Journal of Experimental Psychology: Human Perception and Performance
volume
38
issue
4
pages
915 - 940
publisher
American Psychological Association (APA)
external identifiers
  • wos:000306984600013
  • scopus:84870856372
ISSN
0096-1523
DOI
10.1037/a0027593
language
English
LU publication?
yes
id
78aa28b6-ba3c-4713-bef8-d7a431f15682 (old id 2372817)
date added to LUP
2012-03-27 11:15:01
date last changed
2017-06-25 04:10:56
@article{78aa28b6-ba3c-4713-bef8-d7a431f15682,
  abstract     = {Despite the importance of both response probability and response time for testing models of choice there is a dearth of chronometric studies examining systematic asymmetries that occur over time- and space-orders in the method of paired comparisons. In this study, systematic asymmetries in discriminating the magnitude of paired visual stimuli are examined by way of log-odds ratios of binary responses as well as by signed response speed. Hierarchical Bayesian modeling is used to map response probabilities and response speed onto constituent psychological process, and processing capacity is also assessed using response time distribution hazard functions. The findings include characteristic order effects that change systematically in magnitude and direction with changes in the magnitude and separation of the stimuli. After Hellström (1979, 2000), Sensation Weighting (SW) model analyses show that such order effects are reflected in the weighted accumulation of noisy information about the difference between stimulus values over time, and interindividual differences in weightings asymmetries are related to the relative processing capacity of participants. An account of sensation weighting based on the use of reference level information and maximization of signal-to-noise ratios is posited, which finds support from theoretically driven analyses of behavioral data.},
  author       = {Patching, Geoffrey and Englund, Mats and Hellström, Åke},
  issn         = {0096-1523},
  keyword      = {Time-order effects,space-order effects,adaptive perception,wave theory,diffusion model,processing capacity.},
  language     = {eng},
  number       = {4},
  pages        = {915--940},
  publisher    = {American Psychological Association (APA)},
  series       = {Journal of Experimental Psychology: Human Perception and Performance},
  title        = {Time- and Space-Order Effects in Timed Discrimination of Brightness and Size of Paired Visual Stimuli},
  url          = {http://dx.doi.org/10.1037/a0027593},
  volume       = {38},
  year         = {2012},
}