The Vestibular Stimulus and its Effect

ORL ◽  
1957 ◽  
Vol 19 (6) ◽  
pp. 498-502
Author(s):  
T. Cawthorne
Keyword(s):  
Vestibular Stimulus

Persistent visual and vestibular impairments for Postural control following concussion

Neurology ◽  
2020 ◽  
Vol 95 (20 Supplement 1) ◽  
pp. S14.3-S15
Author(s):  
Jaclyn B. Caccese ◽  
Fernando Vanderlinde Santos ◽  
Felipe Yamaguchi ◽  
John J. Jeka
Keyword(s):  
Confidence Interval ◽  
Visual Stimulus ◽  
Group Differences ◽  
Control Group ◽  
Upright Stance ◽  
Post Injury ◽  
Sensory Reweighting ◽  
Vestibular Stimulus ◽  
Concussion History ◽  
Proprioceptive Stimulus

ObjectiveThe purpose of this study was to examine sensory reweighting for upright stance in three groups (i.e., sub-acute concussion, concussion history, control).BackgroundBalance impairments are common following concussion; however, the physiologic mechanisms underlying these impairments are not well understood.Design/methodsThere were 13 participants (8 women, 21 ± 3 years) between 2 weeks and 6 months post-injury who reported being asymptomatic at the time of testing (i.e., sub-acute concussion group), 13 participants (8 women, 21 ± 1 year) with a history of concussion (i.e., concussion history group, >1 year following concussion), and 26 participants (8 women, 22 ± 3 years) with no concussion history (i.e., control group). We assessed sensory reweighting by simultaneously perturbing participants' visual, vestibular, and proprioceptive systems. The visual stimulus was a sinusoidal translation of the visual scene at 0.2Hz, the vestibular stimulus was ±1 mA binaural monopolar galvanic vestibular stimulation (GVS) at 0.36Hz, and the proprioceptive stimulus was Achilles' tendon vibration at 0.28Hz. The visual stimulus was presented at two different amplitudes (low vision = 0.2m, high vision = 0.8m). We computed center of mass gain to each modality.ResultsThe sub-acute concussion group (95% confidence interval = 0.078-0.115, p = 0.001) and the concussion history group (95% confidence interval = 0.056-0.094, p = 0.038) had higher gains to the visual stimulus than the control group (95% confidence interval = 0.040-0.066). The sub-acute concussion group (95% confidence interval = 0.795–1.159, p = 0.002) and the concussion history group (95% confidence interval = 0.633–1.012, p = 0.018) had higher gains to the vestibular stimulus than the control group (95% confidence interval = 0.494-0.752). There were no group differences in gains to the proprioceptive stimulus and there were no group differences in sensory reweighting.ConclusionsFollowing concussion, participants responded more strongly to visual and vestibular stimuli during upright stance, suggesting they may have abnormal dependence on visual and vestibular feedback. These findings may indicate an area for targeted rehabilitation interventions.

Vestibular Stimulus and Perceived Roll Tilt During Coordinated Turns in Aircraft and Gondola Centrifuge

2016 ◽  
Vol 87 (5) ◽  
pp. 454-463 ◽  
Author(s):  
Arne Tribukait ◽  
Adrian Ström ◽  
Eddie Bergsten ◽  
Ola Eiken
Keyword(s):  
Vestibular Stimulus ◽  
Roll Tilt

The Nature of the Vestibular Stimulus

1946 ◽  
Vol 61 (10) ◽  
pp. 529-541 ◽  
Author(s):  
L. B. W. Jongkees ◽  
J. J. Groen
Keyword(s):  
Vestibular Stimulus

Head and Eye Movements following Vestibular Stimulus in Squirrel Monkeys

ORL ◽  
1981 ◽  
Vol 43 (1) ◽  
pp. 26-38 ◽  
Author(s):  
Takeshi Kubo ◽  
Makoto Igarashi ◽  
David W. Jensen ◽  
William K. Wright
Keyword(s):  
Eye Movements ◽  
Squirrel Monkeys ◽  
Vestibular Stimulus

2244 Classical conditioning between light and vestibular stimulus in pond snail Lymneae

1997 ◽  
Vol 28 ◽  
pp. S264
Author(s):  
Ryo Kawai ◽  
Tetsuro Horikoshi ◽  
Manabu Sakakibara
Keyword(s):  
Classical Conditioning ◽  
Pond Snail ◽  
Vestibular Stimulus

scholarly journals Vestibular attenuation to random-waveform galvanic vestibular stimulation during standing and treadmill walking

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kelci B. Hannan ◽  
Makina K. Todd ◽  
Nicole J. Pearson ◽  
Patrick A. Forbes ◽  
Christopher J. Dakin
Keyword(s):  
Vestibular System ◽  
Vestibular Stimulation ◽  
Galvanic Vestibular Stimulation ◽  
Treadmill Walking ◽  
Horizontal Force ◽  
Stimulus Exposure ◽  
Vestibular Stimulus ◽  
Orientation Information ◽  
Carry Over

AbstractThe ability to move and maintain posture is critically dependent on motion and orientation information provided by the vestibular system. When this system delivers noisy or erred information it can, in some cases, be attenuated through habituation. Here we investigate whether multiple mechanisms of attenuation act to decrease vestibular gain due to noise added using supra-threshold random-waveform galvanic vestibular stimulation (GVS). Forty-five participants completed one of three conditions. Each condition consisted of two 4-min standing periods with stimulation surrounding a 1-h period of either walking with stimulation, walking without stimulation, or sitting quietly. An instrumented treadmill recorded horizontal forces at the feet during standing and walking. We quantified response attenuation to GVS by comparing vestibular stimulus-horizontal force gain between conditions. First stimulus exposure caused an 18% decrease in gain during the first 40 s of standing. Attenuation recommenced only when subjects walked with stimulation, resulting in a 38% decrease in gain over 60 min that did not transfer to standing following walking. The disparity in attenuation dynamics and absent carry over between standing and walking suggests that two mechanisms of attenuation, one associated with first exposure to the stimulus and another that is task specific, may act to decrease vestibulomotor gain.

The Interaction of Angular and Linear Optokinetic Stimuli with an Angular Vestibular Stimulus

1992 ◽  
Vol 656 (1 Sensing and C) ◽  
pp. 868-870 ◽  
Author(s):  
S. S. MOSSMAN ◽  
A. M. BRONSTEIN ◽  
J. D. HOOD ◽  
P. SACARES
Keyword(s):  
Vestibular Stimulus
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