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vestibular information

Katharina Feil, Regina Feuerecker, Nicolina Goldschagg, Ralf Strobl, Thomas Brandt, Albrecht von Müller, Eva Grill, Michael Strupp
Background: Making the correct diagnosis of patients presenting with vertigo and dizziness in clinical practice is often challenging. Objective: In this study we examined the performance of the iPad based program me d x in the prediction of different clinical vertigo and dizziness diagnoses and as a diagnostic tool to distinguish between them. Patients and methods: The data collection was done in the outpatient clinic of the German Center of Vertigo and Balance Disorders...
2018: Frontiers in Neurology
Magdalena Lachowska, Paulina Glinka, Kazimierz Niemczyk
BACKGROUND: Air-conducted and skull-tap cervical vestibular evoked myogenic potentials (AC-cVEMP and Tap-cVEMP) have been shown to be very promising tools in clinical practice. They are noninvasive, easy to obtain and - importantly - they require little time and the cost of the instruments is low. OBJECTIVES: The aim of this study was to evaluate the usefulness of the combined use of ACand Tap-cVEMPs as a diagnostic tool for advanced assessment of vestibular schwannoma in determining tumor origin, and to investigate whether the results are helpful for a surgeon as an additional source of information about the tumor before surgery...
March 13, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
Ria Maxine Rühl, Thomas Bauermann, Marianne Dieterich, Peter Zu Eulenburg
The visual motion aftereffect (MAE) is the most prominent aftereffect in the visual system. Regarding its function, Psychophysical studies suggest its function to be a form of sensory error correction, possibly also triggered by incongruent visual-vestibular stimulation. Several observational imaging experiments have deducted an essential role for region MT+ in the perception of a visual MAE but not provided conclusive evidence. Potential confounders with the MAE such as ocular motor performance, attention, and vection sensations have also never been controlled for...
March 5, 2018: NeuroImage
Carrie W Hoppes, Patrick J Sparto, Susan L Whitney, Joseph M Furman, Theodore J Huppert
BACKGROUND AND PURPOSE: Individuals with visual vertigo describe symptoms of dizziness, disorientation, and/or impaired balance in environments with conflicting visual and vestibular information or complex visual stimuli. Physical therapists often prescribe habituation exercises using optic flow to treat these symptoms, but there are no evidence-based guidelines for delivering optic flow and it is unclear how the brain processes such stimuli. The purposes of this study were to use functional near-infrared spectroscopy (fNIRS) to explore cerebral activation during optic flow, and determine if visual fixation had a modulating effect on brain activity...
2018: PloS One
J S Phillips, J Fitzgerald, D Phillis, A Underwood, I Nunney, A Bath
OBJECTIVE: To determine the effectiveness of vestibular rehabilitation using the Wii Fit balance platform, in adults with dizziness. METHODS: A single-site prospective clinical trial was conducted in a university hospital in the UK. Forty patients with dizziness, who would normally be candidates for vestibular rehabilitation, were identified and considered as potential participants. Participants were randomised into either the treatment group (the Wii Fit group) or the control group (standard customised vestibular rehabilitation protocol)...
March 2018: Journal of Laryngology and Otology
Jin Su Park, Chang-Hee Kim, Min-Beom Kim
OBJECTIVE: The purpose of this study was to evaluate and compare the results of cervical vestibular evoked myogenic potential (cVEMP) and video head impulse test (p-vHIT) of posterior semicircular canal considered tools of inferior vestibular nerve function in vestibular neuritis. STUDY DESIGN: Prospective cohort study. SETTING: Tertiary otology clinic. PATIENTS AND INTERVENTIONS: Seventy-nine patients with vestibular neuritis participated in this study...
February 28, 2018: Otology & Neurotology
Takashi Nagai, Nathan D Schilaty, Jeffrey D Strauss, Eric M Crowley, Timothy E Hewett
Lower extremity musculoskeletal injuries-such as ACL injury-are common, and the majority of those injuries occur without external player contact. In order to prevent non-contact musculoskeletal injuries, athletes must rely on accurate sensory information (such as visual, vestibular, and somatosensory) and stabilize joints during athletic tasks. Previously, proprioception tests (the senses of joint position, movement, tension or force) have been examined using static tests. Due to the role of proprioception in achievement of joint stability, it is essential to explore the development of dynamic proprioception tests...
February 27, 2018: Sports Medicine
Arthur Mallinson, Anouk Kuijpers, Neil Longridge
OBJECTIVE: Ocular vestibular-evoked myogenic potentials (OVEMPs) in our hands provide us with reproducible and consistent results; however, it has been shown that the OVEMP amplitude decreases with increased stimulus duration. The exact number of stimuli for OVEMP recording is not consistent among the published papers describing this test. We aimed to determine the number of stimuli needed to produce a satisfactory OVEMP response and the consequences of a more prolonged stimulation to the OVEMP response...
February 20, 2018: Journal of International Advanced Otology
Jana Goyens, Peter Aerts
The cyclic patterns of terrestrial animal locomotion are frequently perturbed in natural environments. The terrain can be complex or inclined, the substrate can move unexpectedly and animals can misjudge situations. Loosing stability due to perturbations increases the probability of capture by predators and decreases the chance of successful prey capture and winning intraspecific battles. When controlled corrective actions are necessary to negotiate perturbations, animals rely on their exteroceptive and proprioceptive senses to monitor the environment and their own body movements...
November 29, 2017: Zoology: Analysis of Complex Systems, ZACS
Giovanni Costantini, Daniele Casali, Fabio Paolizzo, Marco Alessandrini, Alessandro Micarelli, Andrea Viziano, Giovanni Saggio
Human maintain their body balance by sensorimotor controls mainly based on information gathered from vision, proprioception and vestibular systems. When there is a lack of information, caused by pathologies, diseases or aging, the subject may fall. In this context, we developed a system to augment information gathering, providing the subject with warning audio-feedback signals related to his/her equilibrium. The system comprises an inertial measurement unit (IMU), a data processing unit, a headphone audio device and a software application...
February 10, 2018: Medical Engineering & Physics
Hsing-Hao Ho, Ya-Hui Li, Jih-Chin Lee, Chih-Wei Wang, Yi-Lin Yu, Dueng-Yuan Hueng, Hsin-I Ma, Hsian-He Hsu, Chun-Jung Juan
PURPOSE: We estimated the volume of vestibular schwannomas by an ice cream cone formula using thin-sliced magnetic resonance images (MRI) and compared the estimation accuracy among different estimating formulas and between different models. METHODS: The study was approved by a local institutional review board. A total of 100 patients with vestibular schwannomas examined by MRI between January 2011 and November 2015 were enrolled retrospectively. Informed consent was waived...
2018: PloS One
Elena Kokkoni, Joshua L Haworth, Regina T Harbourne, Nicholas Stergiou, Anastasia Kyvelidou
AIM OF THE STUDY: Independent sitting requires the control of the involved body segments over the base of support using information obtained from the three sensory systems (visual, vestibular, and somatosensory). The contribution of somatosensory information in infant sitting has not been explored. To address this gap, we altered the context of the sitting support surface and examined the infants' immediate postural responses. MATERIALS AND METHODS: Ten 7-month-old typically developing infants sat on compliant and firm surfaces in one session...
December 2017: Somatosensory & Motor Research
Eva Ekvall Hansson, Anders Beckman
BACKGROUND: The number of elderly people persons suffering from dizziness is substantial, and dizziness is a risk factor for falls and fractures. Fall-related fractures represent a major public health issue. Longitudinal studies can help find ways of predicting fall-related fractures among frail elderly persons with multisensory dizziness. The aim of the present study was therefore to investigate whether different measures of balance, being male/female or admission to hospital, could predict fracture at a ten-year follow-up in patients suffering from multisensory dizziness...
February 2, 2018: BMC Geriatrics
Natalia Cooper, Ferdinando Milella, Carlo Pinto, Iain Cant, Mark White, Georg Meyer
Objective and subjective measures of performance in virtual reality environments increase as more sensory cues are delivered and as simulation fidelity increases. Some cues (colour or sound) are easier to present than others (object weight, vestibular cues) so that substitute cues can be used to enhance informational content in a simulation at the expense of simulation fidelity. This study evaluates how substituting cues in one modality by alternative cues in another modality affects subjective and objective performance measures in a highly immersive virtual reality environment...
2018: PloS One
Mariia Kaliuzhna, Mario Prsa, Steven Gale, Raphael Maire, Olaf Blanke
Unilateral vestibular loss (UVL) is accompanied by deficits in processing of visual and vestibular self-motion cues. The present study examined whether multisensory integration of these two types of information is, nevertheless, intact in such patients. Patients were seated on a rotating platform with a screen simulating 3D rotation in front of them and asked to judge the relative magnitude of two successive rotations in the yaw plane in three conditions: vestibular stimulation, visual stimulation and bimodal stimulation ( congruent stimuli from both modalities together)...
January 25, 2018: Neuropsychologia
Raphaël Maire, Arthur Mallinson, Hadrien Ceyte, Sebastien Caudron, Christian Van Nechel, Alexandre Bisdorff, Mans Magnusson, Hannes Petersen, Herman Kingma, Philippe Perrin
The executive committee of the European Society for the clinical evaluation of balance disorders meets annually to address equilibrium problems that are not well understood. This is a review paper on discussions in the latest meeting we held. MATERIALS AND METHODS: Seeing patients with vestibular disorders who end up depending on visual information as part of their compensation process is a common clinical occurrence. However, this "visual dependence" can generate symptoms, which include nausea, sensations of imbalance, and anxiety...
December 2017: Journal of International Advanced Otology
Bart B G T Alberts, Luc P J Selen, Wim I M Verhagen, Ronald J E Pennings, W Pieter Medendorp
DFNA9 is a rare progressive autosomal dominantly inherited vestibulo-cochlear disorder, resulting in a homogeneous group of patients with hearing impairment and bilateral vestibular function loss. These patients suffer from a deteriorated sense of spatial orientation, leading to balance problems in darkness, especially on irregular surfaces. Both behavioral and functional imaging studies suggest that the remaining sensory cues could compensate for the loss of vestibular information. A thorough model-based quantification of this reweighting in individual patients is however missing...
December 13, 2017: Journal of Neurophysiology
Katerina Cabolis, Anne Steinberg, Elisa Raffaella Ferrè
Vestibular-multisensory interactions are essential for self-motion, navigation and postural stability. Despite evidence suggesting shared brain areas between vestibular and somatosensory inputs, no study has yet investigated whether somatosensory information influences vestibular perception. Here, we used signal detection methods to identify whether somatosensory stimulation might interact with vestibular events in a vestibular detection task. Participants were instructed to detect near-threshold vestibular roll-rotation sensations delivered by galvanic vestibular stimulation in one-half of experimental trials...
January 22, 2018: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
Cathy C Harro, Chelsea Garascia
BACKGROUND AND PURPOSE: Postural control declines with aging and is an independent risk factor for falls in older adults. Objective examination of balance function is warranted to direct fall prevention strategies. Force platform (FP) systems provide quantitative measures of postural control and analysis of different aspects of balance. The purpose of this study was to examine the reliability and validity of FP measures in healthy older adults. METHODS: This study enrolled 46 healthy elderly adults, mean age 67...
January 10, 2018: Journal of Geriatric Physical Therapy
Yi-Ho Young
OBJECTIVE: This study reviewed the development of the inner ear test battery comprising auditory brainstem response (ABR), and caloric, ocular vestibular-evoked myogenic potential (oVEMP), and cervical vestibular-evoked myogenic potential (cVEMP) tests in guinea pig models at our laboratory over the last 20 years. Detailed description of the methodology for testing the small animals is also included. METHODS: Inner ear disorders, i.e. ototoxicity, noise exposure, or perilymph fistula were established in guinea pig models first...
January 8, 2018: Acta Oto-laryngologica
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