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 9 of 9 for “"otolith organs"”.
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A viscoelastic model for the response of a step change in velocity of the human otolith organs
The otolith organs are housed in the inner ear and are responsible for sensing accelerations and gravity. These inertial sensing systems are modeled in this thesis as a three material system consisting of a rigid otoconial plate attached to the skull by a gel layer, surrounded by a viscous …
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Bi-layered viscoelastic model for a step change in velocity and a constant acceleration stimulus for the human otolith organs
The otolith organs are commonly modeled as a system consisting of three distinct elements, a viscous endolymph fluid in contact with a rigid otoconial layer that is attached to the skull by a viscoelastic gel layer. However, in this model the gel layer is considered as a bi-layered viscoelastic …
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Reimagining the Inner Ear: A Morphometric Modeling Approach for Establishing Shape Change in the Evolution of the Human Otolith System
… vestibular system of the inner ear comprises the organs responsible for this sense; the semicircular canals (detecting angular acceleration) and otolith organs (utricle and saccule; detecting linear acceleration, vibration, and head tilt relative to gravity). The vestibular organs are often …
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Vestibular Evoked Myogenic Potentials : physiology, variability, and statistical characteristics
… subjects, and are thought to originate in the otolith organs of the inner ear, which are balance organs responsible for sensing acceleration and orientation with respect to gravity. Otolith reflexes interact with the motor drive to a contracted muscle to give rise to the VEMP signal. In the …
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A human analog for benchmarking vestibular tests in a roto-tilt chair
… anatomy and physiology of the peripheral sensory organs of the vestibular system, as well as some diagnostic tests of the inner ear. Using previous work in vestibular modeling and prosthetics development, this thesis then brings focus to the development and testing of an experimental model that …
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Experimental Measurement of the Utricle's Dynamic Response and the Mechanoelectrical Characterization of a Micron-Sized DIB
Within the vestibular system are otolith organs, both the utricle and saccule. The primary function of these organs is to transduce linear head accelerations and static head tilts into afferent signals that are sent to the central nervous system for the utilization of image fixation, muscle posture …
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Enhancement of perception with the application of stochastic vestibular stimulation
… involves stimulation of the semicircular canals, otoliths or both, and 3) demonstrate that SVS can improve perception-based manual control performance in a task relevant to piloting during planetary landing, docking, or other vehicle maneuvers. In a first experiment, upright roll tilt direction …
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Motion perception with conflicting or congruent visual and vestibular cues
… from both sensory sources (e.g. vestibular organs, visual, proprioceptive), and non-sensory sources (e.g. efferent copy, cognition)). This "spatial orientation" is normally subconscious, and information from multiple sense organs is automatically fused into perception. As late as the early …
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Zur klinischen Bedeutung der exzentrischen vertikalen Rotation zum Nachweis von Otolithenfunktionsstörungen beim Menschen
… in der Gleichgewichtsdiagnostik sind die Otolithenorgane in der klinischen Routine bisher weitgehende unbeachtet geblieben. <br>Ziel dieser Studie war es, die klinische Anwendbarkeit eines Otolithenfunktionstests zu überprüfen. Einer gesunden Vergleichsgruppe (n = 20) wurde ein …