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Facilitatory and Inhibitory Mechanisms in the Spatial Distribution of Attention: An Empirical and Model-Based Exploration

Lee, Sang Ho
http://rave.ohiolink.edu/etdc/view?acc_num=osu1629453184180049

Abstract Details

2021, Doctor of Philosophy, Ohio State University, Psychology.
Recent studies of spatial attention suggest that the distribution of attention mapped by the flanker task shows local suppression of attention at small regions around the target (surround inhibition). I explored how facilitatory and inhibitory selective attention mechanisms form and modulate the distribution of attention, using a newly developed cognitive model that dissociates the two mechanisms assumed to underlie the distribution of attention: facilitation and inhibition. The model assumed that distinct facilitatory and inhibitory control mechanisms modulate the breadths of different parts of the attentional distribution. Two flanker task experiments sought to modulate selectively the operations of the two mechanisms, also reflected by changes in two parameters of a computational model of selective attention in the task. The behavioral and modeling results showed that inhibition and facilitation were not selectively modulated by the experimental manipulations. However, assessment of two alternative measures of selective attention in the flanker task, the magnitude of flanker interference and the breadth of the attentional distribution, showed evidence for distinct facilitatory and inhibitory control mechanisms.
Mark Pitt (Advisor)
Andrew Leber (Committee Member)
Jay Myung (Committee Member)
89 p.
Cognitive Psychology
visual spatial attention, selective attention, cognitive modeling

Recommended Citations

Citations

  • Lee, S. H. (2021). Facilitatory and Inhibitory Mechanisms in the Spatial Distribution of Attention: An Empirical and Model-Based Exploration [Doctoral dissertation, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1629453184180049

    APA Style (7th edition)

  • Lee, Sang Ho. Facilitatory and Inhibitory Mechanisms in the Spatial Distribution of Attention: An Empirical and Model-Based Exploration. 2021. Ohio State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1629453184180049.

    MLA Style (8th edition)

  • Lee, Sang Ho. "Facilitatory and Inhibitory Mechanisms in the Spatial Distribution of Attention: An Empirical and Model-Based Exploration." Doctoral dissertation, Ohio State University, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1629453184180049

    Chicago Manual of Style (17th edition)

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This open access ETD is published by The Ohio State University and OhioLINK.