Dynamic visual acuity testing for screening patients with vestibular impairments [0.03%]
用于筛查前庭功能障碍患者的动态视力检查
Brian T Peters,Ajitkumar P Mulavara,Helen S Cohen et al.
Brian T Peters et al.
Dynamic visual acuity (DVA) may be a useful indicator of the function of the vestibulo-ocular reflex (VOR) but most DVA tests involve active head motion in the yaw plane. During gait the passive, vertical VOR may be more relevant and passiv...
Mark Shelhamer,Kara Beaton
Mark Shelhamer
Commercial suborbital flights, which include 3-5 minutes of 0 g between hyper-g launch and landing phases, will present suborbital passengers with a challenging sensorimotor experience. Based on the results of neurovestibular research in pa...
Postural performance of vestibular loss patients under increased postural threat [0.03%]
平衡威胁增加的情况下前庭损伤患者姿态性能研究
Laurence R Young,Laurence Bernard-Demanze,Michel Dumitrescu et al.
Laurence R Young et al.
The effects of increasing postural task difficulty on balance control was investigated in 9 compensated vestibular loss patients whose results were compared to 11 healthy adults. Subjects were tested in static (stable support) and dynamic (...
Charles M Oman
Charles M Oman
Vertebrates have evolved rapidly conditionable nausea and vomiting reflexes mediated by gut and brainstem receptors, clearly as a defense against neurotoxin ingestion. In 1977 Treisman proposed that sensory orientation linkages to emetic ce...
Influence of head orientation and viewpoint oscillation on linear vection [0.03%]
头部姿势和视角摆动对线状vection的影响研究
Pearl S Guterman,Robert S Allison,Stephen Palmisano et al.
Pearl S Guterman et al.
Sensory conflict theories predict that adding simulated viewpoint oscillation to self-motion displays should generate significant and sustained visual-vestibular conflict and reduce the likelihood of illusory self-motion (vection). However,...
Helen S Cohen,Ajitkumar P Mulavara,Brian T Peters et al.
Helen S Cohen et al.
Few reliable tests are available for screening people rapidly for vestibular disorders although such tests would be useful for a variety of testing situations. Balance testing is widely performed but of unknown value for screening. The goal...
Sensory conflict compared in microgravity, artificial gravity, motion sickness, and vestibular disorders [0.03%]
微重力、人工重力、运动病和前庭紊乱中的感觉冲突比较
Jan E Holly,Sarah M Harmon
Jan E Holly
Perceptual disturbances and motion sickness are often attributed to sensory conflict. We investigated several conditions: head movements in microgravity, periodic motions in 1-g, and locomotion with vestibular disorders. In every case, line...
Relationships between observer and Kalman Filter models for human dynamic spatial orientation [0.03%]
观察者与卡尔曼滤波器模型在人类动态空间定向中的关系研究
Pierre Selva,Charles M Oman
Pierre Selva
How does the central nervous system (CNS) combine sensory information from semicircular canal, otolith, and visual systems into perceptions of rotation, translation and tilt? Over the past four decades, a variety of input-output ("black box...
M D Dunlap,C E Spoon,J W Grant
M D Dunlap
The utricle of the red-eared turtle was subjected to forced sinusoidal oscillations across various frequencies (10-125 Hz) and amplitudes (5-9 μm) to determine dynamic characteristics of the utricle under natural inertial stimulation. The ...