Vestibular dysfunction, beyond benign paroxysmal positional vertigo, affects mental rotations: Comment on “Visual dependence and spatial orientation in benign paroxysmal positional vertigo”

2018 ◽  
Vol 28 (3-4) ◽  
pp. 365-366
Author(s):  
Alessandro Micarelli ◽  
Matteo Candidi ◽  
Andrea Viziano ◽  
Marco Alessandrini
Keyword(s):  
Spatial Orientation ◽  
Benign Paroxysmal Positional Vertigo ◽  
Vestibular Dysfunction ◽  
Positional Vertigo ◽  
Mental Rotations ◽  
Visual Dependence ◽  
Paroxysmal Positional Vertigo

scholarly journals Visual dependence and spatial orientation in benign paroxysmal positional vertigo

2018 ◽  
Vol 27 (5-6) ◽  
pp. 279-286 ◽  
Author(s):  
Maitreyi A. Nair ◽  
Ajitkumar P. Mulavara ◽  
Jacob J. Bloomberg ◽  
Haleh Sangi-Haghpeykar ◽  
Helen S. Cohen
Keyword(s):  
Spatial Orientation ◽  
Benign Paroxysmal Positional Vertigo ◽  
Positional Vertigo ◽  
Visual Dependence ◽  
Paroxysmal Positional Vertigo

Experimental study on the aetiology of benign paroxysmal positional vertigo due to canalolithiasis: comparison between normal and vestibular dysfunction models

2014 ◽  
Vol 128 (1) ◽  
pp. 68-72 ◽  
Author(s):  
K Otsuka ◽  
M Negishi ◽  
M Suzuki ◽  
T Inagaki ◽  
M Yatomi ◽  
...  
Keyword(s):  
Benign Paroxysmal Positional Vertigo ◽  
Mechanical Vibration ◽  
Vestibular Dysfunction ◽  
Sensory Cells ◽  
Utricular Macula ◽  
American Bullfrog ◽  
Positional Vertigo ◽  
Sensory Hairs ◽  
Time Required ◽  
Paroxysmal Positional Vertigo

AbstractObjectives:Using American bullfrog models under normal conditions and under vestibular dysfunction, we investigated whether mechanical vibration applied to the ear could induce otoconial dislodgement.Methods:Vibration was applied to the labyrinth of the bullfrog using a surgical drill. The time required for the otoconia to dislodge from the utricular macula was measured. Vestibular dysfunction models were created and the dislodgement time was compared with the normal models. The morphology of the utricular macula was also investigated.Results:In the normal models, the average time for otoconial dislodgement to occur was 7 min and 36 s; in the vestibular dysfunction models, it was 2 min and 11 s. Pathological investigation revealed that the sensory hairs of the utricle were reduced in number and that the sensory cells became atrophic in the vestibular dysfunction models.Conclusion:The otoconia of the utricle were dislodged into the semicircular canal after applying vibration. The time to dislodgement was significantly shorter in the vestibular dysfunction models than in the normal models; the utricular macula sustained significant morphological damage.

Clinical Implications of the Center of Balance for a Veteran with Traumatic Brain Injury

2015 ◽  
pp. 280-289
Keyword(s):  
Traumatic Brain Injury ◽  
Case Report ◽  
Brain Injury ◽  
Benign Paroxysmal Positional Vertigo ◽  
Medical Center ◽  
Treatment Plan ◽  
Successful Outcome ◽  
Model Case ◽  
Positional Vertigo ◽  
Paroxysmal Positional Vertigo

Background: It is known that traumatic brain injury (TBI), even of the mild variety, can cause diffuse multisystem neurological damage. Coordination of sensory input from the visual, vestibular and somatosensory pathways is important to obtain proper balance and stabilization in the visual environment. This coordination of systems is potentially disrupted in TBI leading to visual symptoms and complaints of dizziness and imbalance. The Center of Balance (COB) at the Northport Veterans Affairs Medical Center (VAMC) is an interprofessional clinic specifically designed for patients with such complaints. An evaluation entails examination by an optometrist, audiologist and physical therapist and is concluded with a comprehensive rehabilitative treatment plan. The clinical construct will be described and a case report will be presented to demonstrate this unique model. Case Report: A combat veteran with a history of a gunshot wound to the skull, blunt force head trauma and exposure to multiple explosions presented with complaints of difficulty reading and recent onset dizziness. After thorough evaluation in the COB, the patient was diagnosed with and treated for severe oculomotor dysfunction and benign paroxysmal positional vertigo. Conclusion: Vision therapy was able to provide a successful outcome via improvement of oculomotor efficiency and control. Physical therapy intervention was able to address the benign paroxysmal positional vertigo. The specific evaluation and management as pertains to the aforementioned diagnoses, as well as the importance of an interprofessional rehabilitative approach, will be outlined.

scholarly journals Benign Paroxysmal Positional Vertigo Treated with Maneuvers to Change Head Position.

1995 ◽  
Vol 88 (7) ◽  
pp. 857-862
Author(s):  
Takayoshi ITAYA ◽  
Hiroya KITANO ◽  
Yoshiro YAZAWA ◽  
Akira KODAMA ◽  
Ichiro KOMADA ◽  
...  
Keyword(s):  
Benign Paroxysmal Positional Vertigo ◽  
Head Position ◽  
Positional Vertigo ◽  
Paroxysmal Positional Vertigo
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