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 20 of 33 for “"Nystagmus"”.
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A molecular-genetic study of Congenital Nystagmus
Nystagmus is a disorder of eye movement characterised by irregular, uncontrolled and repetitive eye movements. It can occur in a broad spectrum of clinical situations and diseases or it may occur in isolation and an inherited disorder. Surprisingly little is known about the underlying mechanisms of …
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Nystagmus generation, oculomotor tracking and visual motion perception.
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1974.
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Detection of fast phase of nystagmus using digital filtering
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1983.
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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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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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'Parametrierung elektronystagmographischer Befunde am Beispiel der thermischen Labyrinthreizung'
… is given. No classical normal values for caloric nystagmus parameters are possible to form. By using logistic regression analysis a differentiation between pathological and healthy findings and different disease groups is possible. Using this method nystagmus amplitude (AMP) was find to be the …
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Oculomotor Control in Patients with Parkinson's Disease
… displaced step jump target motion. Pendular nystagmus was found in all Parkinson’s subjects, with an average frequency of 7.44 Hz. Saccadic peak velocity and duration along the main sequence were not statistically different from controls. A slower rate of reading was also noted in the …
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Sensory and Cognitive Influences on Oculomotor and Whole-body Coordination during Standing Turns
… gaze strategy driven primarily by eye movements (nystagmus). However, the relationship between eye movements and whole-body coordination during turning has not been fully explored under different environmental and sensory contexts and as a result, the neural mechanisms responsible for this …
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Analysis of the Physical and Physiological Events Resulting from Caloric Irrigation of the Human Temporal Bone
… caloric responses. Although the difference of nystagmus intensities may be explained by the difference in the magnitude of the respective water temperatures, there remained a possible influence of a stimulus-related adaptation effect upon the response latencies.<br/><br/>Regarding pathways and …
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The relationship between motor proficiency, bilateral vestibular hypofunction and dynamic visual acuity in children with congenital or early acquired sensorineural hearing loss
… function with the Southern California Postrotary Nystagmus Test.
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Incremental adaptation to yaw head movements during 30 RPM centrifugation
… perceived body tilt, non-compensatory vertical nystagmus, and motion sickness. Past experiments in the Man Vehicle Lab have studied adaptation to yaw head movements while rotating at 23 RPM. To investigate adaptation to head movements at a higher rotation rate, 28 subjects participated in a …
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Torsionelle Augenbewegungen bei galvanischen, natürlichen und pathologischen Reizzuständen des menschlichen Gleichgewichtssystems
… (VOR) -- Augenbewegungen, die neben horizontalem Nystagmus auch aus phasischen und tonischen Torsionskomponenten bestehen. Letztere haben in der Literatur zu der Vermutung eines starken Otolithenbeitrags geführt. Bei näherer Betrachtung der bekannten VOR-Verstärkungen fiel jedoch auf, dass die …
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Ocular motion classification for mobile device presentation attack detection
… 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 tracking to …
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Einfluss frühembryonaler Manipulation der Augenanlage auf das Verhalten und auf Positionsmarker im optischen Tektum des Haushuhns
… pecking behaviour, reflexes and the optokinetic nystagmus (OKN). The animal exhibited normal reflexes with both eyes, showing the functionality of the manipulated eye. The animal showed to a monocular optokinetic stimulus – a normal OKN – a direction asymmetry in response to different stimulus …
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Die Bedeutung des Spontannystagmus in der neurootologischen Netzwerkdiagnostik
… Arbeit wurde die Wertigkeit des Spontannystagmus in der neurootologischen Netzwerkdiagnostik analysiert und mit anderen Studien verglichen. Weiterhin sollte geklärt werden, ob sich durch die Anwesenheit von Spontannystagmus möglicherweise weitere Folgediagnosen stellen lassen. …
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Effects of Auditory Vection Speed and Directional Congruence on Perceptions of Visual Vection
… ratings, vection speed ratings, and horizontal nystagmus frequency. Subjective responses to motion were assessed pre and post treatment, and oculomotor responses were assessed before, during, and following exposure to circular vection. The results revealed a significant effect of stimulus …
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Cross plane transfer of vestibular adaptation to human centrifugation
… Since these movements can elicit inappropriate nystagmus, illusions of tumbling, and motion sickness, efforts have been made to adapt people to the stimuli. So far these efforts have been successful in showing that people will adapt to at least one plane of head motion, the yaw (transverse) …
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