Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"optokinetic"”.
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Characteristics of optokinetic torsion in upright and supine orientations
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1985.
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Investigation of optokinetic nystagmus and the linear vestibular-ocular reflex
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1993.
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Characterization of the torsional optokinetic response to rolling visual fields in humans
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1992.
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Modulation of optokinetic nystagmus in humans by linear acceleration, and the effects of spaceflight
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1992.
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The Effects of Different Optokinetic Drum Rotation Speeds on Motion Sickness Symptoms, Cognitive Performance and Sleep Amount
… speeds (0 RPM, 5 RPM, and 10 RPM) of the optokinetic drum on motion sickness symptoms. Motion sickness symptoms were measured using the Simulator Sickness Questionnaire (SSQ). Before exposure to the optokinetic drum, participants were not significantly different from one another in terms …
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Human eye movements in response to linear optokinetic stimulation and whole-body acceleration, and the effects of spaceflight
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Brain and Cognitive Sciences, 1994.
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Ocular motion classification for mobile device presentation attack detection
… presents the methods and evaluation of a novel optokinetic nystagmus (OKN) based PAD system for mobile device applications which leverages phase-locked temporal features of a unique reflexive behavioral response. Background is provided for historical and literary context of eye motion and ocular …
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Role of DeltaC and DeltaD in Zebrafish Retinal Development
… behavior, the visual motor response (VMR) and optokinetic reflex (OKR) of mutant embryos were analyzed. The OKR showed a reduced ability of mutant embryos to detect moving objects on their visual field, whereas each mutant presented a characteristic VMR. This study demonstrated that different …
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Modular, Open-Source Instrumentation for Zebrafish Larvae Research
… and open-source software to enable quantitative optokinetic response measurements and closed-loop interaction between larval behavior and external systems. Application to pharmacological perturbation studies demonstrates the platform's sensitivity and adaptability, while the OpenZebra Feeder …
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Predicting Vision Loss In Healthy Aging With Manganese-Enhanced Mri Of The Rat Eye
… Long-Evans rats, we compared visual function (optokinetic tracking), as well as retinal physiology and eye morphology (Mn2+-enhanced MRI (MEMRI), which uses neuronal Mn2+ uptake as a marker of Ca2+ influx). We documented significant age-related decreases in visual performance and increases in …
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Pre-exposure Training as a Means to Reduce Vection Induced Symptoms of Motion Sickness
… to the motion sickness testing environment; the optokinetic drum. Tests results were measured subjectively through a conventional motion sickness questionnaire and objectively through the use of a cognitive test, balance tests, and salivary markers for cortisol and amylase. A series of …
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A Biomaterial-based Stem Cell Therapy for Retinal Regeneration
… retinal functionality, which was measured with optokinetic (OKN) and electroretinogram (ERG) assays. The results of this thesis motivate and guide further translational study in a large animal model to validate Gtn-HPA/HA-Tyr hydrogels incorporating retinal stem cells and growth factors for the …
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Optokinetischer Afternystagmus bei Tinnituspatienten
In dieser Dissertation wurden aus dem Patientenstamm der neurootologischen Abteilung der Universitäts-Hals-Nasen-Ohren-Klinik Würzburg Daten aus den Jahrgängen November 1994 bis Februar 2002 entnommen. Insgesamt waren es 479 Patienten. Alle Patienten hatten einen beidseitigen optokinetischen …
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Effects of aberrant visuo-vestibular information on higher cognition
… In study 3, disruption of performance caused by optokinetic stimulation was not found to be selective to the SASS task. However, in study 4, responses on that task after impulse stimulation were characterised by smaller boundary separations (simple effect: t(14) = 2.89, p = .014, r = .612). This …
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Mild Traumatic Brain Injury with Associated Visual System Dysfunction: Investigating Histopathology, Functional Correlates, and a Novel Therapeutic Immune Modulator
… <p><strong>Functional results</strong>. Optokinetic testing was administered to obtain visual acuity (VA) and contrast sensitivity (CS) thresholds in mice at 30 days after blast. It was found that no group showed any defects in VA, but the 50-psi vehicle-treated group (50V) showed …