keyword
MENU ▼
Read by QxMD icon Read
search

vestibular information

keyword
https://www.readbyqxmd.com/read/29324510/reliability-and-validity-of-computerized-force-platform-measures-of-balance-function-in-healthy-older-adults
#1
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
https://www.readbyqxmd.com/read/29310507/inner-ear-test-battery-in-guinea-pig-models-a-review
#2
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
https://www.readbyqxmd.com/read/29298819/reduction-of-motion-sickness-through-targeting-histamine-n-methyltransferase-in-the-dorsal-vagal-complex-of-the-brain
#3
Miao-Miao Chen, Li-Hua Xu, Li Chang, Peng Yin, Zheng-Lin Jiang
To investigate the role of histamine N-methyltransferase (HNMT) activity in the development of motion sickness (MS) in the dorsal vagal complex (DVC) to inform the development of new drugs for MS, Beagle dogs and Sprague-Dawley rats were rotated to simulate MS. HNMT expression in the brain stem and DVC was measured. The effects of systemic application of tacrine, a HNMT inhibitor, on the development of MS were observed. Moreover, we microinjected a histamine receptor H1 inhibitor, promethazine, into the DVC to verify the involvement of histaminergic neurotransmission in MS...
January 3, 2018: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/29298211/clinical-evaluation-of-the-vestibular-nerve-using-vestibular-evoked-myogenic-potentials
#4
Jamie M Bogle
Vestibular evoked myogenic potentials are currently the most clinically accessible method to evaluate the otolith reflex pathways. These responses provide unique information regarding the status of the utriculo-ocular and sacculo-collic reflex pathways, information that has previously been unavailable. Vestibular evoked myogenic potentials are recorded from tonically contracted target muscles known to be innervated by these respective otolith organs. Diagnosticians can use vestibular evoked myogenic potentials to better evaluate the overall integrity of the inner ear and neural pathways; however, there are specific considerations for each otolith reflex protocol...
January 2018: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/29288435/balance-training-does-not-alter-reliance-on-visual-information-during-static-stance-in-those-with-chronic-ankle-instability-a-systematic-review-with-meta-analysis
#5
REVIEW
Kyeongtak Song, Evan Rhodes, Erik A Wikstrom
BACKGROUND: Visual, vestibular, and somatosensory systems contribute to postural control. Chronic ankle instability (CAI) patients have been observed to have a reduced ability to dynamically shift their reliance among sources of sensory information and rely more heavily on visual information during a single-limb stance relative to uninjured controls. Balance training is proven to improve postural control but there is a lack of evidence regarding the ability of balance training programs to alter the reliance on visual information in CAI patients...
December 29, 2017: Sports Medicine
https://www.readbyqxmd.com/read/29283093/anterior-cervical-disc-fusion-does-not-affect-the-presence-of-cervical-vestibular-evoked-myogenic-potential
#6
Ioannis Kastanioudakis, Panagiotis Saravakos, Andreas Zigouris, Vasileios Ragos, Oliver Reichel, Nafsika Ziavra
OBJECTIVE: Cervical spondylosis and cervical disk herniation are the most frequent forms of degenerative disease in the cervical spine. Surgical treatment mainly includes anterior cervical disk fusion. However, information concerning vestibular-evoked myogenic potential (VEMP) recording in patients undergoing cervical spine surgery is limited. The present prospective study aimed to investigate the effect of anterior disk fusion surgery on cervical VEMP (cVEMP) parameters. MATERIALS AND METHODS: Twenty-five patients were enrolled in this study, and 20 patients (10 men and 10 women) completed cVEMP testing...
December 14, 2017: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/29282523/amiodarone-associated-bilateral-vestibulopathy
#7
Robert Gürkov, Leonardo Manzari, Alexander Blödow, Angela Wenzel, Dusan Pavlovic, Leonal Luis
BACKGROUND: Bilateral vestibulopathy (BVP) is a debilitating disorder characterized by the hypofunction of both vestibular end organs or nerves. The most frequent identifiable causes of BVP are ototoxic drug effects, infectious and autoimmune disorders. The majority of cases, however, remain idiopathic. METHODS: Medical records of patients diagnosed with idiopathic BVP were examined in five dizziness clinics. RESULTS: We identified 126 patients with "idiopathic" BVP...
December 27, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29259575/visually-induced-dizziness-in-children-and-validation-of-the-pediatric-visually-induced-dizziness-questionnaire
#8
Marousa Pavlou, Susan L Whitney, Abdulaziz A Alkathiry, Marian Huett, Linda M Luxon, Ewa Raglan, Emma L Godfrey, Doris-Eva Bamiou
Aims: To develop and validate the Pediatric Visually Induced Dizziness Questionnaire (PVID) and quantify the presence and severity of visually induced dizziness (ViD), i.e., symptoms induced by visual motion stimuli including crowds and scrolling computer screens in children. Methods: 169 healthy (female n = 89; recruited from mainstream schools, London, UK) and 114 children with a primary migraine, concussion, or vestibular disorder diagnosis (female n = 62), aged 6-17 years, were included...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29239806/development-of-postural-control-and-maturation-of-sensory-systems-in-children-of-different-ages-a-cross-sectional-study
#9
Cristina Dos Santos Cardoso de Sá, Catarina Costa Boffino, Renato Teodoro Ramos, Clarice Tanaka
OBJECTIVE: To evaluate the stability, postural adjustments and contributions of sensory information for postural control in children. METHODS: 40 boys and 40 girls were equally divided into groups of 5, 7, 9 and 12 years (G5, G7, G9 and G12). All children were submitted to dynamic posturography using a modified sensory organization test, using four sensory conditions: combining stable or sway referencing platform with eyes opened, or closed. The area and displacements of the center of pressure were used to determine stability, while the adjustments were used to measure the speed of the center of pressure displacements...
November 8, 2017: Brazilian Journal of Physical Therapy
https://www.readbyqxmd.com/read/29209162/characterization-of-cochlear-vestibular-and-cochlear-vestibular-electrically-evoked-compound-action-potentials-in-patients-with-a-vestibulo-cochlear-implant
#10
T A K Nguyen, Samuel Cavuscens, Maurizio Ranieri, Konrad Schwarz, Nils Guinand, Raymond van de Berg, Thomas van den Boogert, Floor Lucieer, Marc van Hoof, Jean-Philippe Guyot, Herman Kingma, Silvestro Micera, Angelica Perez Fornos
The peripheral vestibular system is critical for the execution of activities of daily life as it provides movement and orientation information to motor and sensory systems. Patients with bilateral vestibular hypofunction experience a significant decrease in quality of life and have currently no viable treatment option. Vestibular implants could eventually restore vestibular function. Most vestibular implant prototypes to date are modified cochlear implants to fast-track development. These use various objective measurements, such as the electrically evoked compound action potential (eCAP), to supplement behavioral information...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29190849/concussion-recovery-phase-affects-vestibular-and-oculomotor-symptom-provocation
#11
Kelly M Cheever, Jane McDevitt, Ryan Tierney, W Geoffrey Wright
Vestibular and oculomotor testing is emerging as a valuable assessment in sport-related concussion (SRC). However, their usefulness for tracking recovery and guiding return-to-play decisions remains unclear. Therefore the purpose of this study was to evaluate their clinical usefulness for tracking SRC recovery. Vestibular and oculomotor assessments were used to measure symptom provocation in an acute group (n=21) concussed≤10 days, prolonged symptoms group (n=10) concussed ≥16 days (median=84 days), healthy group (n=58) no concussions in >6 months...
November 30, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29189907/neural-circuits-underlying-jaw-movements-for-the-prey-catching-behavior-in-frog-distribution-of-vestibular-afferent-terminals-on-motoneurons-supplying-the-jaw
#12
András Birinyi, Nóra Rácz, Szilvia Kecskes, Clara Matesz, Gabriella Kovalecz
Coordinated movement of the jaw is essential for catching and swallowing the prey. The majority of the jaw muscles in frogs are supplied by the trigeminal motoneurons. We have previously described that the primary vestibular afferent fibers, conveying information about the movements of the head, established close appositions on the motoneurons of trigeminal nerve providing one of the morphological substrates of monosynaptic sensory modulation of prey-catching behavior in the frog. The aim of our study was to reveal the spatial distribution of vestibular close appositions on the somatodendritic compartments of the functionally different trigeminal motoneurons...
November 30, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/29167325/the-modulation-of-hippocampal-theta-rhythm-by-the-vestibular-system
#13
Phillip Aitken, Yiwen Zheng, Paul F Smith
The vestibular system is a sensory system that has evolved over millions of years to detect acceleration of the head, both rotational and translational, in three dimensions. One of its most important functions is to stabilize gaze during unexpected head movement; however, it is also important in the control of posture and autonomic reflexes. Theta rhythm is a 3-12 Hz oscillating EEG signal that is intimately linked to self-motion and is also known to be important in learning and memory. Many studies over the last two decades have shown that selective activation of the vestibular system, either using natural rotational or translational stimulation, or electrical stimulation of the peripheral vestibular system, can induce and modulate theta activity...
November 22, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/29165309/clinical-characteristics-of-patients-with-dizziness-after-motor-vehicle-accident
#14
Min Bum Kim, Suk Won Chang, Gil Chai Lim, Chan Il Song
OBJECTIVE: The purpose of this study was to identify the clinical characteristics of dizziness occurring after a motor vehicle accident. MATERIALS AND METHODS: We retrospectively analyzed 217 patients who had visited a tertiary medical center complaining of dizziness after a motor vehicle accident between January 2009 and December 2014. Of the 217 patients, we enrolled 54 patients who had undergone a vestibular function test and had no definite evidence of fracture of the temporal bone or intracranial lesions...
November 21, 2017: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/29163085/involvement-of-the-avian-dorsal-thalamic-nuclei-in-homing-pigeon-navigation
#15
Paulo E Jorge, Belmiro V Pinto, Verner P Bingman, John B Phillips
The navigational ability of birds has been a focus of popular and scientific interest for centuries, but relatively little is known about the neuronal networks that support avian navigation. In the brain, regions like the piriform cortex, olfactory bulbs, hippocampal formation, vestibular nuclei, and the wulst, are among the brain regions often discussed as involved in avian navigation. However, despite large literature showing a prominent role of some anterior and dorsal thalamic nuclei in mammalian spatial navigation, little is known about the role of the thalamus in avian navigation...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/29129037/eye-movement-abnormalities-in-middle-cerebellar-peduncle-strokes
#16
Sung-Hee Kim, Ji-Soo Kim
The middle cerebellar peduncle (MCP) is a major conduit for cortico-ponto-cerebellar fibers that convey information related to eye movements. This study aims to elucidate eye movement abnormalities that arise from lesions confined to the MCP. In 23 patients with acute strokes restricted to unilateral MCPs, we investigated the clinical features and ocular motor findings including spontaneous nystagmus, saccades, smooth pursuit, ocular tilt reaction, and head impulse tests. Bithermal caloric tests and audiometry were also performed...
November 11, 2017: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/29128561/infraciliature-of-opisthotrichum-janus-epidinium-ecaudatum-and-ophryoscolex-purkynjei-ciliophora-entodiniomorphida
#17
Akira Ito, Toshihiro Tokiwa
We described the infraciliature of Opisthotrichum janus, Epidinium ecaudatum, and Ophryoscolex purkynjei, belonging to the family Ophryoscolecidae, from pyridinated silver carbonate impregnated specimens. The adoral polybrachykinety is C-shaped in Opi. janus, whereas it is spiral-shaped in Epi. ecaudatum and Oph. purkynjei. The vestibular polybrachykinety is slender and short in Opi. janus, whereas slender and long in Epi. ecaudatum and Oph. purkynjei. The paralabial kineties are composed of several short kineties along the adoral polybrachykinety...
October 20, 2017: European Journal of Protistology
https://www.readbyqxmd.com/read/29118202/bayesian-optimal-adaptation-explains-age-related-human-sensorimotor-changes
#18
Faisal Karmali, Gregory T Whitman, Richard F Lewis
The brain uses information from different sensory systems to guide motor behavior, and aging is associated with a simultaneous decline in the quality of sensory information provided to the brain and a deterioration in motor control. Correlations between age-dependent decline in sensory anatomical structures and behavior have been demonstrated, and it has recently been suggested that a Bayesian framework could explain these relationships. Here we show that age-dependent changes in a human sensorimotor reflex, the vestibulo-ocular reflex, are explained by a Bayesian optimal adaptation in the brain occurring in response to death of motion-sensing hair cells...
November 8, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/29100928/stochastic-resonance-in-the-human-vestibular-system-noise-induced-facilitation-of-vestibulospinal-reflexes
#19
M Wuehr, J C Boerner, C Pradhan, J Decker, K Jahn, T Brandt, R Schniepp
BACKGROUND: There is strong evidence that the presence of noise can enhance information processing in sensory systems via stochastic resonance (SR). OBJECTIVES: To examine the presence of SR in human vestibulospinal reflex function. METHODS: Healthy subjects were stimulated with 1 Hz sinusoidal GVS of varying amplitudes (0-1.9 mA). Coherence between GVS input and stimulation-induced motion responses was determined and psychometric function fits were subsequently used to determine individual vestibulospinal reflex thresholds...
October 31, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/29095392/the-differential-diagnosis-of-vertigo-in-children-a-systematic-review-of-2726-cases
#20
Meghan Davitt, Michael T Delvecchio, Stephen C Aronoff
OBJECTIVES: Vertigo is a relatively common complaint in children with 5.3% of pediatric patients complaining of this symptom. Although the causes of vertigo have been well established in adults, the diagnoses in children have not been well described. The aims of this systematic review are to discover the current information regarding etiologies of vertigo in children and to determine the most common diagnoses that present with vertigo in pediatric patients. METHODS: PubMed, Scopus, and Embase were searched using the PRISMA guidelines...
October 31, 2017: Pediatric Emergency Care
keyword
keyword
103171
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"