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ISSN : 1226-9654

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Vol.26 No.3
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Spatial attention allocation in retinal vs. spatial coordinate with and without referential background

The Korean Journal of Cognitive and Biological Psychology / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
2014, v.26 no.3, pp.151-169
https://doi.org/10.22172/cogbio.2014.26.3.002



& (2014). Spatial attention allocation in retinal vs. spatial coordinate with and without referential background. The Korean Journal of Cognitive and Biological Psychology, 26(3), 151-169, https://doi.org/10.22172/cogbio.2014.26.3.002
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Abstract

This research tested the basis of spatial attention deployment. Spatial coordinate based on relative retinal position is called retinotopic coordinate and that based on objective spatial location of outer world is called spatiotopic coordinate. Golomb, Chun, & Mazer (2008) compared the use of these two coordinates in spatial attention allocation and concluded that retinotopic coordinate is the basis of spatial attention allocation in early visual information processing and spatiotopic coordinate is used only after retinotopic coordinate is updated. However, because their experiments used only dots and lines as stimuli in the absence of contextual information (e.g., background), retinotopic coordinate was the only representation readily accessible for spatial attention allocation. In this research, we hypothesized that background providing spatiotopic information will facilitate attention allocation based on the spatiotopic representation. To test this hypothesis, we replicated previous results using the stimuli in Golomb et al. (Expt. 1), and then provided background to test whether background is used as spatiotopic reference frame in spatial attention allocation (Expt. 2). The results of Experiments 1 and 2 are compared to examine spatial attention allocation in retinotopic vs. spatiotopic coordinates depending on presence or absence of background. Contrary to previous findings, in Expt. 2, retinotopic facilitation of attention allocation disappeared, indicating that previous experimental setting was favorable for the use of retinotopic spatial representation and that background can be used as spatiotopic reference frame for spatial attention deployment.

keywords
spatial attention, retinotopic coordinate, spatiotopic coordinate, 공간적 주의, 공간위상좌표, 망막위상좌표

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