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Exploring the relationship between response time, sensitivity and bias in categorical and coordinate visuospatial processes: evidence for hemispheric specialisation

Exploring the relationship between response time, sensitivity and bias in categorical and coordinate visuospatial processes: evidence for hemispheric specialisation
Exploring the relationship between response time, sensitivity and bias in categorical and coordinate visuospatial processes: evidence for hemispheric specialisation
Right visual field-left hemisphere (RVF-LH) and left visual field-right hemisphere (LVF-RH) specialisations found for categorical and coordinate visuospatial judgements, respectively, are thought to demonstrate two different perceptual processes. In the current experiment, we used signal detection theory to investigate categorical and coordinate processes, and to explore the relationship between response time (RT), sensitivity and bias measures. We found a LVF-RH advantage for the processing of categorical spatial relations when this effect was indexed by sensitivity. We also found that task influenced response bias in RVF-LH trials, but not in LVF-RH trials. Increased sensitivity was correlated with faster responses in the coordinate task but slower responses in the categorical task, and faster RTs when responding liberally in RVF-LH but not LVF-RH categorical trials. By analysing signal detection measures alongside RT, the findings suggest that differences in sensitivity and response bias may contribute to typical task by hemisphere effects in RT.
2044-5911
423-432
Meadmore, Katie
4b63707b-4c44-486c-958e-e84645e7ed33
Liversedge, Simon P.
3ebda3f3-d930-4f89-85d5-5654d8fe7dee
Wenger, M.
5d964172-b60c-45cc-aae9-5d0aebd9e5d5
Donnelly, Nick
05c83b6b-ee8d-4c9d-85dc-c5dcd6b5427b
Meadmore, Katie
4b63707b-4c44-486c-958e-e84645e7ed33
Liversedge, Simon P.
3ebda3f3-d930-4f89-85d5-5654d8fe7dee
Wenger, M.
5d964172-b60c-45cc-aae9-5d0aebd9e5d5
Donnelly, Nick
05c83b6b-ee8d-4c9d-85dc-c5dcd6b5427b

Meadmore, Katie, Liversedge, Simon P., Wenger, M. and Donnelly, Nick (2014) Exploring the relationship between response time, sensitivity and bias in categorical and coordinate visuospatial processes: evidence for hemispheric specialisation. Journal of Cognitive Psychology, 26 (4), 423-432. (doi:10.1080/20445911.2014.903255).

Record type: Article

Abstract

Right visual field-left hemisphere (RVF-LH) and left visual field-right hemisphere (LVF-RH) specialisations found for categorical and coordinate visuospatial judgements, respectively, are thought to demonstrate two different perceptual processes. In the current experiment, we used signal detection theory to investigate categorical and coordinate processes, and to explore the relationship between response time (RT), sensitivity and bias measures. We found a LVF-RH advantage for the processing of categorical spatial relations when this effect was indexed by sensitivity. We also found that task influenced response bias in RVF-LH trials, but not in LVF-RH trials. Increased sensitivity was correlated with faster responses in the coordinate task but slower responses in the categorical task, and faster RTs when responding liberally in RVF-LH but not LVF-RH categorical trials. By analysing signal detection measures alongside RT, the findings suggest that differences in sensitivity and response bias may contribute to typical task by hemisphere effects in RT.

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e-pub ahead of print date: 3 April 2014
Published date: 3 April 2014

Identifiers

Local EPrints ID: 362916
URI: http://eprints.soton.ac.uk/id/eprint/362916
ISSN: 2044-5911
PURE UUID: 6b0f2c21-1ce7-4b06-b534-576872148332
ORCID for Katie Meadmore: ORCID iD orcid.org/0000-0001-5378-8370

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Date deposited: 14 Mar 2014 15:01
Last modified: 15 Mar 2024 03:23

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Contributors

Author: Katie Meadmore ORCID iD
Author: Simon P. Liversedge
Author: M. Wenger
Author: Nick Donnelly

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