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Motion sickness

Shilpa B Gaikwad, Eric G Johnson, Todd C Nelson, Oluwaseun I Ambode, Abdulaziz A Albalwi, Ahmad A Alharbi, Noha S Daher
BACKGROUND AND PURPOSE: Motion sensitivity is a common condition among the general population and may be accompanied by postural instability and anxiety. Preliminary studies suggest that minimal dosage of gaze stability exercises improves postural stability in young adults with chronic motion sensitivity. The aim of this study was to investigate the effect of progressive gaze stability exercises on postural stability, motion sensitivity, and anxiety in healthy young adults with chronic motion sensitivity...
April 2018: Journal of Neurologic Physical Therapy: JNPT
J F Golding, K A Wesnes, B R Leaker
AIMS: The aim of this study was to compare the effects of the selective M3 muscarinic acetylcholine receptor antagonist Darifenacin, oral Hyoscine hydrobromide and Placebo on motion sickness induced by cross-coupled stimulation. METHODS: The effects of Darifenacin 10 mg or 20 mg, Hyoscine hydrobromide 0.6 mg and Placebo were assessed in a randomised, double-blind, 4-way cross over trial of 16 healthy subjects. Motion sickness, skin conductance (a measure of sweating) and psychomotor cognitive function tests were investigated...
March 9, 2018: British Journal of Clinical Pharmacology
Patricia S Cowings, William B Toscano, Millard F Reschke, Addis Tsehay
The National Aeronautics and Space Administration (NASA) has identified a potential risk of spatial disorientation, motion sickness, and degraded performance to astronauts during re-entry and landing of the proposed Orion crew vehicle. The purpose of this study was to determine if a physiological training procedure, Autogenic-Feedback Training Exercise (AFTE), can mitigate these adverse effects. Fourteen men and six women were assigned to two groups (AFTE, no-treatment Control) matched for motion sickness susceptibility and gender...
March 2, 2018: International Journal of Psychophysiology
Shaziela Ishak, Andrea Bubka, Frederick Bonato
Sensory conflict theories of motion sickness (MS) assert that symptoms may result when incoming sensory inputs (e.g., visual and vestibular) contradict each other. Logic suggests that attenuating input from one sense may reduce conflict and hence lessen MS symptoms. In the current study, it was hypothesized that attenuating visual input by blocking light entering the eye would reduce MS symptoms in a motion provocative environment. Participants sat inside an aircraft cockpit mounted onto a motion platform that simultaneously pitched, rolled, and heaved in two conditions...
January 1, 2018: Perception
Hyun K Kim, Jaehyun Park, Yeongcheol Choi, Mungyeong Choe
This study aims to develop a motion sickness measurement index in a virtual reality (VR) environment. The VR market is in an early stage of market formation and technological development, and thus, research on the side effects of VR devices such as simulator motion sickness is lacking. In this study, we used the simulator sickness questionnaire (SSQ), which has been traditionally used for simulator motion sickness measurement. To measure the motion sickness in a VR environment, 24 users performed target selection tasks using a VR device...
May 2018: Applied Ergonomics
Fred H Previc
INTRODUCTION: A theory is presented to explain the major findings regarding motion sickness and to synthetize current theories concerning its etiology. The theory proposes that an imbalance in the output of the two major organs of the labyrinth-favoring the semicircular canals over the otolith organs-is responsible for most instances of motion sickness as experienced in terrestrial and microgravity environments. METHODS: Strengths and limitations of current theories are first outlined before the different roles of the canals and otoliths in the genesis of motion sickness symptoms are described...
February 1, 2018: Aerospace Medicine and Human Performance
Dawei Tian, Fengfeng Mo, Xingjian Cai, Zhiyuan Miao, Feng Xiao, Yifang Chang, Lusha Wu, Yuxiao Tang, Xin Wang, Chen Ye, Xiaolu Qian, Wei Gu, Min Li
OBJECTIVE: Acupuncture has been widely used for the treatment of motion sickness (MS), but the underlying mechanisms are unclear. The aim of this research was to study the mechanism of acupuncture in the treatment of MS. METHODS: To observe the effects of acupuncture in the treatment of MS, 80 rats were randomised into five groups that were subjected to acceleration and either remained untreated (CTRL), or received restraint (REST), scopolamine (SCOP) or acupuncture at SP4 (sham) or PC6+ST36 (verum) acupuncture points...
February 7, 2018: Acupuncture in Medicine: Journal of the British Medical Acupuncture Society
Dionne Okafor, Alan David Kaye, Rachel J Kaye, Richard D Urman
Postoperative nausea and vomiting (PONV) can be very debilitating for surgical patients, and effective management reduces potential morbidity, aiding in patient satisfaction, and minimizing the need for unintended hospital stays. Risk factors include female sex, nonsmoker, and having a previous history of motion sickness or PONV. Anesthetic risk factors include receiving opioids, not receiving a total intravenous anesthetic (TIVA), exposure to nitrous oxide, and extended length of anesthetic. Many treatments, including serotonin antagonists, dopamine antagonists, corticosteroids, inhaled isopropyl alcohol, and anticholinergics, as well as techniques such as TIVA, have been utilized over recent decades in an attempt to reduce PONV incidence...
October 2017: Journal of Anaesthesiology, Clinical Pharmacology
Ouren X Kuiper, Jelte E Bos, Cyriel Diels
Carsickness is associated with a mismatch between actual and anticipated sensory signals. Occupants of automated vehicles, especially when using a display, are at higher risk of becoming carsick than drivers of conventional vehicles. This study aimed to evaluate the impact of positioning of in-vehicle displays, and subsequent available peripheral vision, on carsickness of passengers. We hypothesized that increased peripheral vision during display use would reduce carsickness. Seated in the front passenger seat 18 participants were driven a 15-min long slalom on two occasions while performing a continuous visual search-task...
April 2018: Applied Ergonomics
Anuj Kumar Neupane, Krithika Gururaj, Sujeet Kumar Sinha
BACKGROUND: Motion sickness is a complex autonomic phenomenon caused by the intersensory conflict among the balancing systems, resulting in a mismatch of signals between static physical conditions of the susceptible individual exposed to dynamic environment. PURPOSE: The present study was done to assess the sacculocollic reflex pathway and six semicircular canals in individuals susceptible to motion sickness. RESEARCH DESIGN: Standard group comparison was used...
February 2018: Journal of the American Academy of Audiology
Philip S Bolton, Elie Hammam, Vaughan G Macefield
We previously showed that dynamic, but not static, neck displacement modulates muscle sympathetic nerve activity (MSNA) to lower limbs of humans. However, it is not known whether dynamic neck displacement modulates skin sympathetic nerve activity (SSNA). Tungsten microelectrodes inserted into the common peroneal nerve were used to record SSNA in 5 female and 4 male subjects lying supine on a table that fixed their head in space but allowed trapezoidal ramp (8.1 {plus minus} 1.20/s) and hold (17.50 for 53s) or sinusoidal (350 peak-to-peak at 0...
December 27, 2017: Journal of Neurophysiology
Sébastien Champion, Laëtitia Zieger, Caroline Hemery
CONTEXT: The role of prophylaxis for postoperative nausea and vomiting (PONV) in cardiac surgery is under debate. AIMS: To study the risk factors for PONV after cardiac surgery and the role of betamethasone with or without droperidol for its prevention. SETTING AND DESIGN: Randomized open-label controlled study comparing standard care with PONV prophylaxis from February to November 2016. METHODS: Five hundred and two patients with planned nonemergent cardiac surgery were included...
January 2018: Annals of Cardiac Anaesthesia
Yue Wei, Jiayue Zheng, Richard H Y So
Visually induced motion sickness (VIMS) is a common discomfort response associated with vection-provoking stimuli. It is suggested that VIMS susceptibility depends on the ability to regulate visual performance during vection. To test this, in total 29 participants, with VIMS susceptibility assessed by Motion Sickness Susceptibility Questionnaire, were recruited in three successive experiments to perform sustained attention to response tests (SARTs) while watching dot pattern stimuli known to provoke roll-vection...
January 11, 2018: Ergonomics
Destiny F Chau, Arundathi Reddy, Patrick Breheny, Anna Rebecca Young, Eric Ashford, Megan Song, Christina Zhang, Tammy Taylor, Abbas Younes, Turaj Vazifedan
Background and Aims: Post-operative vomiting (POV) in children remains a significant clinical problem. This prospective study aims to investigate the applicability of well-established adult early post-operative nausea and vomiting (PONV) risk factors on paediatric POV after adenotonsillectomies under regulated anaesthetic conditions. Methods: After Institutional Review Board approval, 213 children aged 3-10-year-old were enrolled. The participants had pre-operative questionnaires completed, followed protocolised anaesthetic plans and had saliva analysed for cotinine...
December 2017: Indian Journal of Anaesthesia
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
Ourania Fydanaki, Panagiotis Kousoulis, Efthimios Dardiotis, Ioannis Bizakis, Ioannis Hajiioannou
Objective: Motion sickness is the main cause of nausea-related symptoms during passive motion in transportation. The aim of this study was to evaluate the effects of electroacupuncture (EA) for the reduction of motion sickness symptoms. Materials and Methods: Study participants were randomly assigned into three groups: Group A, therapeutic EA; Group B, sham EA; and group C, a control group. After an EA session, participants were exposed to a motion stimulus, using a rotating chair. Their symptoms were measured using the Greek version of the Gianaros Motion Sickness Assessment Questionnaire (MSAQ)...
December 1, 2017: Medical Acupuncture
Michelle Sophie Keller, Hannah J Park, Maria Elena Cunningham, Joshua Eleazar Fouladian, Michelle Chen, Brennan Mason Ross Spiegel
BACKGROUND: Virtual reality (VR) technology provides an immersive environment that enables users to have modified experiences of reality. VR is increasingly used to manage patients with pain, disability, obesity, neurologic dysfunction, anxiety, and depression. However, public opinion regarding the use of VR in health care has not been explored. Understanding public opinion of VR is critical to ensuring effective implementation of this emerging technology. OBJECTIVE: This study aimed to examine public opinion about health care VR using social listening, a method that allows for the exploration of unfiltered views of topics discussed on social media and online forums...
December 19, 2017: Journal of Medical Internet Research
Ragavendrasamy Balakrishnan, Ramesh Mavathur Nanjundaiah, Nandi Krishnamurthy Manjunath
Vomiting is a complex autonomic reflex orchestrated by several neurological centres in the brain. Vagus, the cranial nerve plays a key role in regulation of vomiting. Kunjal Kriya (Voluntarily Induced Vomiting), is a yogic cleansing technique which involves voluntarily inducing vomiting after drinking saline water (5%) on empty stomach. This study was designed with an objective to understand the effect of voluntary induced vomiting (ViV) on pulmonary functions in experienced practitioners and novices and derive its possible therapeutic applications...
December 11, 2017: Journal of Ayurveda and Integrative Medicine
Seung-Han Lee, Seong-Hae Jeong, Ji-Soo Kim, Hyo-Jung Kim, Kwang-Dong Choi, Jae-Hwan Choi, Sun-Young Oh, Ji-Yun Park, Dong Uk Kim, Byung-Kun Kim
OBJECTIVE: To determine the efficacy of prophylactic medications for migraine in reducing associated dizziness and motion sickness. STUDY DESIGN: Multicenter prospective observational study. SETTING: Nationwide 9 Dizziness Clinics in South Korea. PATIENTS: One hundred thirty-eight patients who required a preventive medication for migraine accompanied by dizziness and motion sickness. INTERVENTION: At least one of the prophylactic medications was prescribed among the beta-blockers, calcium channel blockers, tricyclic antidepressants, and antiepileptic drugs...
January 2018: Otology & Neurotology
Roberto Teggi, Bruno Colombo, Roberto Albera, Giacinto Asprella Libonati, Cristiano Balzanelli, Angel Batuecas Caletrio, Augusto Casani, Juan Manuel Espinoza-Sanchez, Paolo Gamba, Jose A Lopez-Escamez, Sergio Lucisano, Marco Mandalà, Giampiero Neri, Daniele Nuti, Rudy Pecci, Antonio Russo, Eduardo Martin-Sanz, Ricardo Sanz, Gioacchino Tedeschi, Paola Torelli, Paolo Vannucchi, Giancarlo Comi, Mario Bussi
OBJECTIVE: The aim of this work was to assess through a questionnaire the features of vertiginous episodes, accompanying symptoms, familial history, and migraine precursors in a sample of 252 subjects with a diagnosis of definite vestibular migraine. BACKGROUND: Migraine is a common neurological disorder characterized by episodic headaches with specific features. About two-thirds of cases run in families, and patients may refer symptoms occurring in infancy and childhood, defined as episodic syndromes that may be associated with migraine...
December 4, 2017: Headache
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