Influence of Spatiotemporal Stimulus Structure on Memory-Guided Saccade Sequences

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dc.contributor.advisorCrawford, John Douglas
dc.contributor.authorAtputharaj, Sharmini
dc.date.accessioned2020-05-11T12:52:56Z
dc.date.available2020-05-11T12:52:56Z
dc.date.copyright2019-11
dc.date.issued2020-05-11
dc.date.updated2020-05-11T12:52:56Z
dc.degree.disciplineKinesiology & Health Science
dc.degree.levelMaster's
dc.degree.nameMSc - Master of Science
dc.description.abstractSaccades - rapid eye movements that place targets of interest on the fovea - are used to measure cognitive processes such as visual working memory. The goal of this study was to identify the influence of spatiotemporal structure, set size, and order of presentation on performance in memory-guided saccade sequences. Fourteen participants were presented with visual stimuli that differed in spatiotemporal structure (Sequential, Spatial, or Random) and set size (3-6) which they had to reproduce with sequential saccades. Results were analyzed with respect to % correct target recall, absolute error, and relative error. There was a significant influence of structure on errors (random>spatial > sequential), set size on correct recall and errors, primacy on correct recall, and interaction effects. These results indicate that spatiotemporal structure is beneficial for memory chunking in saccade sequence planning, however, this has complex interactions with set size, order, and the way saccade errors are measured.
dc.identifier.urihttps://hdl.handle.net/10315/37460
dc.languageen
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subjectKinesiology
dc.subject.keywordsEye movements
dc.subject.keywordsSaccades
dc.subject.keywordsVisual working memory
dc.subject.keywordsVision
dc.subject.keywordsMemory
dc.titleInfluence of Spatiotemporal Stimulus Structure on Memory-Guided Saccade Sequences
dc.typeElectronic Thesis or Dissertation

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