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Vision Res. 2011 Oct 1;51(19):2139-44. doi: 10.1016/j.visres.2011.08.011. Epub 2011 Aug 18.

Visual influence on the slow oscillatory eye movement discovered during a visual fixation task.

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Department of Clinical Neuroscience, Division of Ophthalmology and Vision, Karolinska Institutet, Stockholm, Sweden.


A slow oscillatory movement (SOM) has previously been discovered superimposed on the three well known components of fixational eye movements. The purpose of the present study was to explore the visual influence on the control mechanism of the SOM. Three tests with different fixation targets and backgrounds were prepared. The eye position during a fixation task on healthy test subjects has been recorded by the Chronos eye tracking device. The visual stimuli with no or less information triggered larger SOM amplitudes. None of the investigated conditions significantly influenced on SOM frequency.

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