视觉诱发的晕动病对先前诱发性身体运动的敏感性。

IF 0.9 4区 医学 Q4 BIOPHYSICS
John F Golding, Daniel Alund, Michael A Gresty, Maria B Flynn
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引用次数: 0

摘要

简介运动习惯化可用于晕车脱敏和前庭疾病患者的康复治疗。但人们对与之相反的过程--敏感化却关注较少:受试者(N = 50)被随机分配到四个序列中:基线视觉刺激;然后是 15 分钟的时间间隔;交叉耦合运动(C-C)或控制条件;然后是 15 分钟或 2 小时的时间间隔;然后是重新测试视觉刺激。运动暴露时间为 10 分钟或直到中度恶心为止,以时间在前者为准。视觉刺激是一个以 0.2 Hz 的速度偏航旋转并叠加 "摆动 "的场景。C-C为全身在转盘上旋转,每30秒期间头部倾斜8次,每次45°。对照组为不旋转的头部倾斜。旋转速度以每 30 秒 3° -s-1 的阶梯速度递增:结果:各组在第一次视觉刺激下产生的晕车症状总分相当(综合:平均值 ± SD 10.8 ± 8.4)。C-C组产生的总症状(20.3 ± 6.8)高于对照组(3.1 ± 3.7)。在重新测试视觉刺激之前,受试者主观上已从 C-C 中恢复过来。对于重测视觉刺激,在 15 分钟和 2 小时重测中,C-C(15.1 ± 9.0)后的总症状高于对照组(8.3 ± 7.1)。晕眩评分(SR)反映了 C-C 的这些影响:讨论:C-C 运动使随后对视觉刺激的反应变得敏感,这种反应可持续到 2 小时之后。对视觉刺激的敏感性是跨模态的,而且似乎是下意识的,因为尽管主观上已经从 C-C 运动中恢复过来,但仍然会出现这种敏感性。对某些人来说,以前相对无害的视觉刺激在重新测试时变得令人作呕。这些结果对在暴露于刺激性运动后数小时内使用视觉技术具有重要意义。Golding JF、Alund D、Gresty MA、Flynn MB。之前的刺激性物理运动对视觉诱发晕动症的敏感性。Aerosp Med Hum Perform.2024; 95(10):741-748.
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Sensitization of Visually Induced Motion Sickness by Prior Provocative Physical Motion.

Introduction: Habituation to motion has therapeutic applications for motion sickness desensitization and rehabilitation of patients with vestibular disease. Less attention has been devoted to the opposite process: sensitization.

Methods: Subjects (N = 50) were randomly allocated to four sequences: Baseline visual stimulus; then 15 min of time gap; cross-coupled motion (C-C) or a Control condition; then a time gap of 15 min or 2 h; then a retest visual stimulus. Motion exposures were for 10 min or until moderate nausea, whichever was sooner. The visual stimulus was a scene rotating in yaw at 0.2 Hz with superimposed "wobble". C-C was whole-body rotation on a turntable with eight 45° head tilts during each 30-s period. Control was head tilt without rotation. Rotational velocity was incremented in staircase steps of 3° · s-1 every 30 s.

Results: Groups were equivalent for Total Motion Sickness Symptom scores elicited by the first visual stimulus (combined: mean ± SD 10.8 ± 8.4). C-C produced greater Total Symptoms (20.3 ± 6.8) than Control (3.1 ± 3.7). Subjects recovered subjectively from C-C before retest of visual stimulus. For the retest visual stimulus, Total Symptoms were higher following C-C (15.1 ± 9.0) than following Control (8.3 ± 7.1) for both the 15 min and 2 h retests. Sickness ratings (SR) mirrored these effects of C-C.

Discussion: C-C motion sensitized subsequent responses to visual stimulation up to 2 h later. Sensitization of visual stimulation crossed modalities and appeared subconscious since it occurred despite subjective recovery from C-C. For some individuals, a previously relatively innocuous visual stimulus became nauseogenic on retest. The results have implications for the use of visual technologies within hours of exposure to provocative motion. Golding JF, Alund D, Gresty MA, Flynn MB. Sensitization of visually induced motion sickness by prior provocative physical motion. Aerosp Med Hum Perform. 2024; 95(10):741-748.

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来源期刊
Aerospace medicine and human performance
Aerospace medicine and human performance PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH -MEDICINE, GENERAL & INTERNAL
CiteScore
1.10
自引率
22.20%
发文量
272
期刊介绍: The peer-reviewed monthly journal, Aerospace Medicine and Human Performance (AMHP), formerly Aviation, Space, and Environmental Medicine, provides contact with physicians, life scientists, bioengineers, and medical specialists working in both basic medical research and in its clinical applications. It is the most used and cited journal in its field. It is distributed to more than 80 nations.
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