Open Access Repository

Using evidence accumulation modelling to quantify the relative contributions of spatial attention and saccade preparation in perceptual tasks

Downloads

Downloads per month over past year

Parker, S, Heathcote, A ORCID: 0000-0003-4324-5537 and Finkbeiner, M 2020 , 'Using evidence accumulation modelling to quantify the relative contributions of spatial attention and saccade preparation in perceptual tasks' , Journal of Experimental Psychology: Human Perception and Performance, vol. 46, no. 4 , pp. 416-433 , doi: 10.1037/xhp0000723.

[img]
Preview
PDF (Post-print)
Using evidence ...pdf | Download (681kB)

| Preview

Abstract

A typical way to investigate the relationship between spatial attention and the programmingof an eye movement is with a dual-task. Here, participants simultaneously make an eyemovement in one direction and discriminate a target at the same or a different location.Results of these tasks consistently find that performance is best at the goal of an upcomingeye movement. It is less clear, however, the extent to which spatial attention can shiftindependently of the programmed saccade. In this paper, for the first time, we use anevidence accumulation model to examine this longstanding question. Specifically, across twostudies, we quantify the relative contributions of spatial attention and saccade preparation in aperceptual dual-task. Our results establish that there is a unique and measurable effect ofspatial attention away from the saccade goal, and, interestingly, that the relative magnitude ofthis effect varies by cue type. There is a larger influence of spatial attention when a peripheral rather than a central cue is employed. We suggest that these results support the claim thateach form of orienting is mediated by a distinct underlying mechanism.

Item Type: Article
Authors/Creators:Parker, S and Heathcote, A and Finkbeiner, M
Keywords: visual attention, saccade, evidence accumulation model, saccadic programming, spatial cueing
Journal or Publication Title: Journal of Experimental Psychology: Human Perception and Performance
Publisher: Amer Psychological Assoc
ISSN: 0096-1523
DOI / ID Number: 10.1037/xhp0000723
Copyright Information:

© 2020 American Psychological Association This paper is not the copy of record and may not exactly replicate the authoritative document published in the APA journal. Please do not copy or cite without author's permission. The final article is available, upon publication, at: http://dx.doi.org/10.1037/xhp0000723

Related URLs:
Item Statistics: View statistics for this item

Actions (login required)

Item Control Page Item Control Page
TOP