Central fixations with rightward deviations: saccadic eye movements on the landmark task

Thomas, Nicole A., Loetscher, Tobias, and Nicholls, Michael E.R. (2012) Central fixations with rightward deviations: saccadic eye movements on the landmark task. Experimental Brain Research, 220 (1). pp. 29-39.

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Neurologically normal individuals show an attentional bias toward the left side, which results from right hemisphere activation during visuospatial tasks. The strength of this bias is influenced by various factors, such as line length, vertical elevation and presentation time. What remains unknown is how participants gather information via saccadic eye movements during task performance and how this relates to their responses. Eye movements were recorded while participants performed the landmark task. Fixations and saccades were both analysed to gain a complete understanding of eye movement patterns. Fixations tended to focus on the centre of the line, with few left–right differences. Saccades were examined by creating histograms illustrating all x-coordinates which were examined over the course of each trial. Interestingly, mean eye position varied with participant response, with an overall tendency to look to the right of centre. Results are consistent with prior research, which has primarily looked at fixations and demonstrates the necessity of examining saccades as well as fixations in order to see how eye movement patterns relate to pseudoneglect.

Item ID: 52459
Item Type: Article (Research - C1)
ISSN: 1432-1106
Keywords: eye-tracking; pseudoneglect; vertical elevation; length; presentation time
Funders: Natural Sciences and Engineering Research Council of Canada (NSERC)
Projects and Grants: NSERC postdoctoral fellowship
Date Deposited: 18 Jul 2018 04:51
FoR Codes: 17 PSYCHOLOGY AND COGNITIVE SCIENCES > 1701 Psychology > 170101 Biological Psychology (Neuropsychology, Psychopharmacology, Physiological Psychology) @ 50%
17 PSYCHOLOGY AND COGNITIVE SCIENCES > 1701 Psychology > 170112 Sensory Processes, Perception and Performance @ 50%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970117 Expanding Knowledge in Psychology and Cognitive Sciences @ 100%
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