Microsaccadic rate signatures correlate under monocular and binocular stimulation conditions
Microsaccades are involuntary eye movements occurring naturally during fixation. In this study, microsaccades were investigated under monocularly and binocularly stimulated conditions with respect to their directional distribution and rate signature, that refers to a curve reporting the frequency mo...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-08-01
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| Series: | Journal of Eye Movement Research |
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| Online Access: | https://bop.unibe.ch/JEMR/article/view/6691 |
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| author | Peter Essig Alexander Leube Katharina Rifai Siegfried Wahl |
| author_facet | Peter Essig Alexander Leube Katharina Rifai Siegfried Wahl |
| author_sort | Peter Essig |
| collection | DOAJ |
| description | Microsaccades are involuntary eye movements occurring naturally during fixation. In this study, microsaccades were investigated under monocularly and binocularly stimulated conditions with respect to their directional distribution and rate signature, that refers to a curve reporting the frequency modulation of microsaccades over time. For monocular stimulation the left eye was covered by an infrared filter. In both stimulation conditions, participants fixated a Gabor patch presented randomly in orientation of 45° or 135° over a wide range of spatial frequencies appearing in the center of a monitor. Considering the microsaccadic directions, this study showed microsaccades to be preferably horizontally oriented in their mean direction, regardless of the spatial characteristics of the grating. Furthermore, this outcome was found to be consistent between both stimulation conditions. Moreover, this study found that the microsaccadic rate signature curve correlates between both stimulation conditions, while the curve given for binocular stimulation was already proposed as a tool for estimation of visual performance in the past.
Therefore, this study extends the applicability of microsaccades to clinical use, since parameters as contrast sensitivity, has been measured monocularly in the clinical attitude. |
| format | Article |
| id | doaj-art-3370174022bf4f0cb17c4e39495e24c3 |
| institution | DOAJ |
| issn | 1995-8692 |
| language | English |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Eye Movement Research |
| spelling | doaj-art-3370174022bf4f0cb17c4e39495e24c32025-08-20T03:06:09ZengMDPI AGJournal of Eye Movement Research1995-86922020-08-0113510.16910/jemr.13.5.3Microsaccadic rate signatures correlate under monocular and binocular stimulation conditionsPeter Essig0Alexander LeubeKatharina RifaiSiegfried WahlInstitute for Ophthalmic Research, Eberhard Karls University TuebingenMicrosaccades are involuntary eye movements occurring naturally during fixation. In this study, microsaccades were investigated under monocularly and binocularly stimulated conditions with respect to their directional distribution and rate signature, that refers to a curve reporting the frequency modulation of microsaccades over time. For monocular stimulation the left eye was covered by an infrared filter. In both stimulation conditions, participants fixated a Gabor patch presented randomly in orientation of 45° or 135° over a wide range of spatial frequencies appearing in the center of a monitor. Considering the microsaccadic directions, this study showed microsaccades to be preferably horizontally oriented in their mean direction, regardless of the spatial characteristics of the grating. Furthermore, this outcome was found to be consistent between both stimulation conditions. Moreover, this study found that the microsaccadic rate signature curve correlates between both stimulation conditions, while the curve given for binocular stimulation was already proposed as a tool for estimation of visual performance in the past. Therefore, this study extends the applicability of microsaccades to clinical use, since parameters as contrast sensitivity, has been measured monocularly in the clinical attitude.https://bop.unibe.ch/JEMR/article/view/6691Eye movementsMicrosaccadesFixationVisual performance |
| spellingShingle | Peter Essig Alexander Leube Katharina Rifai Siegfried Wahl Microsaccadic rate signatures correlate under monocular and binocular stimulation conditions Journal of Eye Movement Research Eye movements Microsaccades Fixation Visual performance |
| title | Microsaccadic rate signatures correlate under monocular and binocular stimulation conditions |
| title_full | Microsaccadic rate signatures correlate under monocular and binocular stimulation conditions |
| title_fullStr | Microsaccadic rate signatures correlate under monocular and binocular stimulation conditions |
| title_full_unstemmed | Microsaccadic rate signatures correlate under monocular and binocular stimulation conditions |
| title_short | Microsaccadic rate signatures correlate under monocular and binocular stimulation conditions |
| title_sort | microsaccadic rate signatures correlate under monocular and binocular stimulation conditions |
| topic | Eye movements Microsaccades Fixation Visual performance |
| url | https://bop.unibe.ch/JEMR/article/view/6691 |
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