Search for dissertations about: "Vestibular systems"

Showing result 1 - 5 of 9 swedish dissertations containing the words Vestibular systems.

2. 1. Postural control and adaptation to threats to balance stability

   Author : Mitesh Patel; Lund näs- och halssjukdomar Öron-; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Postural control; Visual; Vestibular; Somatosensory; Proprioception; Posturography; Complaint surface; Ageing; Mechanoreceptive sensation; Sleep deprivation; Adaptation; Muscle activity;

   Abstract : Postural control is the ability to maintain equilibrium and orientation in a gravitational environment. It is dependent on feedback and feedforward mechanisms that generate appropriate corrective movement based on body-sway motion detected primarily by visual, vestibular, and proprioceptive sensory systems. READ MORE

4. 2. Vestibular control of body orientation in lamprey

   Author : Elena Pavlova; Karolinska Institutet; Karolinska Institutet; []
   Keywords : Postural control; orientation; vision; vestibular system; visuo-vestibular interaction; vestibular compensation; locomotion; supraspinal control; lamprey;

   Abstract : Maintenance of body orientation (postural control) is a vital motor function of the brain. The general goal of this project was to understand the organization and operation of neuronal networks responsible for postural control. The lamprey (a lower vertebrate) was used as a model animal. READ MORE

5. 3. Passenger kinematics in evasive maneuvers

   Author : Emma Larsson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; volunteer kinematics; Active Human Body Model; pre-crash; active muscles; occupant variability; evasive maneuvers;

   Abstract : In situations that might lead to a vehicle crash, drivers often perform an evasive maneuver, such as braking or steering, in an attempt to avoid a crash. If a crash was not avoided, the maneuver could influence the injury outcome by altering the occupant’s position. READ MORE

6. 4. Neural mechanisms for the control of posture, locomotion and steering : a behavioral, electrophysiological and modeling study in lamprey

   Author : Patriq Fagerstedt; Karolinska Institutet; Karolinska Institutet; []
   Keywords : reticulospinal; vestibular system; spinal cord; central pattern generator; reciprocal inhibition; fictive locomotion; fictive turning; electron microscopy; computer simulation; lamprey; dorsal fin;

   Abstract : When animals move around interacting with the environment, the nervous system has to solve several tasks simultaneously in order to produce and control the movements - notably propulsion, posture, balance, and associated movements. Basic motor tasks are controlled by neuronal networks organized into central pattern generators (CPGs) and reflexes, located in the spinal cord and brainstem. READ MORE

7. 5. Multisensory control of gaze stabilization : from brainstem to bedside

   Author : Tobias Wibble; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : Without the continuous updates provided by the vestibular and visual systems, our world would appear blurry and unstable. In order to allow the retina to reliably record incoming light in a meaningful way, the vestibulo-ocular reflex (VOR) and optokinetic reflex (OKR) aim to stabilize our gaze on visual features. READ MORE