Effects of visual blur on microsaccades during visual exploration
| العنوان: | Effects of visual blur on microsaccades during visual exploration |
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| المؤلفون: | Sherry Tang, Peggy Skelly, Jordan Murray, Jonathan B. Jacobs, Aasef G. Shaikh, Jorge Otero-Millan, Fatema F. Ghasia |
| المصدر: | Journal of Eye Movement Research, Vol 12, Iss 6 (2019) Journal of Eye Movement Research; Bd. 12 Nr. 6 (2019): Special Thematic Issue, part 1 "Microsaccades: Empirical Research and Methodological Advances“ Journal of Eye Movement Research; Vol. 12 No. 6 (2019): Special Thematic Issue, part 1 "Microsaccades: Empirical Research and Methodological Advances“ Journal of Eye Movement Research |
| بيانات النشر: | Bern Open Publishing, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Refractive error, Visual acuity, visual acuity, Computer science, gaze, Region of interest, 0502 economics and business, medicine, Computer vision, 050207 economics, eye movement, Visual search, 050208 finance, Optimal sampling, business.industry, 05 social sciences, visual fading, QM1-695, Eye movement, medicine.disease, Gaze, saccades, Sensory Systems, microsaccades, blur, Ophthalmology, Human anatomy, Artificial intelligence, region of interest, Microsaccade, medicine.symptom, business, Research Article |
| الوصف: | Microsaccades shift the image on the fovea and counteract visual fading. They also serve as an optimal sampling strategy while viewing complex visual scenes. Microsaccade production relies on the amount of retinal error or acuity demand of a visual task. The goal of this study was to assess the effects of blur induced by uncorrected refractive error on visual search. Eye movements were recorded in fourteen healthy subjects with uncorrected and corrected refractive error while they performed a) visual fixation b) blank-scene viewing c) visual search (spot the difference) tasks. Microsaccades, saccades, correctly identified differences and reaction times were analyzed. The frequency of microsaccades and correctly identified differences were lower in the uncorrected refractive error during visual search. No similar change in microsaccades was seen during blank-scene viewing and gaze holding tasks. These findings suggest that visual blur, hence the precision of an image on the fovea, has an important role in calibrating the amplitude of microsaccades during visual scanning. |
| وصف الملف: | application/pdf; application/zip |
| اللغة: | English |
| تدمد: | 1995-8692 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b81b594fce4f8c536335effc76cc782 https://bop.unibe.ch/JEMR/article/view/4369 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....8b81b594fce4f8c536335effc76cc782 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19958692 |
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