K. Ball
Both egocentric and allocentric cues support spatial priming in visual search
Ball, K.; Smith, D.; Ellison, A.; Schenk, T
Authors
Professor Dan Smith daniel.smith2@durham.ac.uk
Professor
Professor Amanda Ellison amanda.ellison@durham.ac.uk
Professor
T Schenk
Abstract
The perception–action model proposes that vision for perception and vision for action are subserved by two separate cortical systems, the ventral and dorsal streams, respectively [Milner, A. D., & Goodale, M. A. (1995). The visual brain in action (1st ed.). Oxford: Oxford University Press; Milner, A. D., & Goodale, M. A. (2006). The visual brain in action (2nd ed.). Oxford: Oxford University Press Inc.]. The dorsal stream codes spatial information egocentrically, that is, relative to the observer. Egocentric representations are argued to be highly transient; therefore, it might be expected that egocentric information cannot be used for spatial memory tasks, even when the visual information only needs to be retained for a few seconds. Here, by applying a spatial priming paradigm to a visual search task, we investigated whether short-term spatial memory can use egocentric information. Spatial priming manifests itself in speeded detection times for a target when that target appears in the same location it previously appeared in. Target locations can be defined in either egocentric or allocentric (i.e. relative to other items in the display) frames of reference; however, it is unclear which of these are used in spatial priming, or if both are. Our results show that both allocentric and egocentric cues were used in spatial priming, and that egocentric cues were in fact more effective than allocentric cues for short-term priming. We conclude that egocentric information can persist for several seconds; a conclusion which is at odds with the assumption of the perception–action model that egocentric representations are highly transient.
Citation
Ball, K., Smith, D., Ellison, A., & Schenk, T. (2009). Both egocentric and allocentric cues support spatial priming in visual search. Neuropsychologia, 47(6), 1585-1591. https://doi.org/10.1016/j.neuropsychologia.2008.11.017
Journal Article Type | Article |
---|---|
Publication Date | May 1, 2009 |
Deposit Date | Nov 23, 2010 |
Journal | Neuropsychologia |
Print ISSN | 0028-3932 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 47 |
Issue | 6 |
Pages | 1585-1591 |
DOI | https://doi.org/10.1016/j.neuropsychologia.2008.11.017 |
Keywords | Perception–action model, Dorsal stream, Frames of reference, Visuomotor, Delay, Spatial memory. |
Public URL | https://durham-repository.worktribe.com/output/1546234 |
You might also like
Dissociating the neural mechanisms of distance and spatial reference frames
(2014)
Journal Article
Object-based attentional facilitation and inhibition are neuropsychologically dissociated
(2015)
Journal Article
Oculomotor preparation as a rehearsal mechanism in spatial working memory
(2014)
Journal Article
The role of the oculomotor system in covert social attention
(2014)
Journal Article
Downloadable Citations
About Durham Research Online (DRO)
Administrator e-mail: dro.admin@durham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search