Using Saccadic Intrusions To Quantify Mental Workload
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چکیده
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منابع مشابه
Saccadic intrusions in strabismus.
Fixational eye movements were studied to determine the presence of and to quantify saccadic intrusions under monocular and binocular viewing conditions in subjects with intermittent strabismus, amblyopia without stabismus, or constant strabismus amblyopia. Saccadic intrusions were present under most test conditions in intermittent strabismus, were rarely observed in amblyopia without strabismus...
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Eye movements during fixation were recorded in 55 normal subjects with ages ranging from 21 to 81 years. We analysed ocular fixation recordings using measurements of saccadic intrusion amplitudes and frequencies along with fixation periods and mean fixation displacement. Viewing conditions included monocular, binocular and presence or absence of a visual fixation target. Visual feedback reduced...
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Fixation instability due to saccadic intrusions is a feature of autosomal recessive spinocerebellar ataxias, and includes square wave intrusions (SWI) and macrosaccadic oscillations (MSO). A recent report suggested that the non-competitive antagonist of NMDA receptors, memantine, could decrease MSO and improve fixation in patients with spinocerebellar ataxia with saccadic intrusions (SCASI). We...
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In order to completely characterize a saccade, its metrics (accuracy), trajec tory (peak velocity, duration, over/undershoot, multiple/single and discrete de celerations) and timing (latency) need to be described. This is true for normal as well as pathological saccades and fast phases of nystagmus. In addition, sac cadic pathology includes various types of saccadic intrusions and oscillatio...
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