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Motion sickness

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https://www.readbyqxmd.com/read/28923138/orientation-preferences-and-motion-sickness-induced-in-a-virtual-reality-environment
#1
Wei Chen, Jian-Gang Chao, Yan Zhang, Jin-Kun Wang, Xue-Wen Chen, Cheng Tan
BACKGROUND: Astronauts' orientation preferences tend to correlate with their susceptibility to space motion sickness (SMS). Orientation preferences appear universally, since variable sensory cue priorities are used between individuals. However, SMS susceptibility changes after proper training, while orientation preferences seem to be intrinsic proclivities. The present study was conducted to investigate whether orientation preferences change if susceptibility is reduced after repeated exposure to a virtual reality (VR) stimulus environment that induces SMS...
October 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28919769/evaluating-the-antiemetic-administration-consistency-to-prevent-chemotherapy-induced-nausea-and-vomiting-with-the-standard-guidelines-a-prospective-observational-study
#2
Afsaneh Vazin, Davood Eslami, Ebrahim Sahebi
Nausea and vomiting (NV) are the most prevalent adverse effects of chemotherapy (CT). This study was conducted to evaluate adherence of the health care team to standard guidelines for antiemetics usage to prevent acute chemotherapy-induced nausea and vomiting (CINV) in a large CT center. A prospective study was performed during an 11-month period on patients receiving CT. A form was designed to collect patients' demographic information and their chemotherapeutic and antiemetic regimen data. The Likert scale was used to measure the effectiveness of the antiemetics in patients...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28889981/visual-vestibular-conflict-detection-depends-on-fixation
#3
Isabelle T Garzorz, Paul R MacNeilage
Visual and vestibular signals are the primary sources of sensory information for self-motion. Conflict among these signals can be seriously debilitating, resulting in vertigo [1], inappropriate postural responses [2], and motion, simulator, or cyber sickness [3-8]. Despite this significance, the mechanisms mediating conflict detection are poorly understood. Here we model conflict detection simply as crossmodal discrimination with benchmark performance limited by variabilities of the signals being compared. In a series of psychophysical experiments conducted in a virtual reality motion simulator, we measure these variabilities and assess conflict detection relative to this benchmark...
September 4, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28879315/postoperative-nausea-and-vomiting-after-general-anesthesia-for-oral-and-maxillofacial-surgery
#4
Benjamas Apipan, Duangdee Rummasak, Natthamet Wongsirichat
BACKGROUND: Postoperative nausea and vomiting (PONV) is one of the most common postoperative complications. Despite this, few papers have reported the incidence and independent risk factors associated with PONV in the context of oral and maxillofacial surgery (OMFS). Therefore, we sought to determine the incidence of PONV, as well as to identify risk factors for the condition in patients who had undergone OMFS under general anesthesia. METHODS: A total of 372 patients' charts were reviewed, and the following potential risk factors for PONV were analyzed: age, sex, body mass index, smoking status, history of PONV and/or motion sickness, duration of anesthesia, amount of blood loss, nasogastric tube insertion and retention and postoperative opioid used...
December 2016: J Dent Anesth Pain Med
https://www.readbyqxmd.com/read/28862519/novel-insights-into-symptomatology-of-moyamoya-disease-in-pediatric-patients-survey-of-symptoms-suggestive-of-orthostatic-intolerance
#5
Haruto Uchino, Ken Kazumata, Masaki Ito, Naoki Nakayama, Kiyohiro Houkin
OBJECTIVE A specific population of young patients with moyamoya disease (MMD) persistently experience physical symptoms not attributable to focal ischemia. These symptoms, highly suggestive of orthostatic intolerance (also termed "orthostatic dysregulation"), were investigated and reported as potential determinants of quality of life in young MMD patients. METHODS Forty-six patients (6-30 years of age) were selected from a group of 122 patients who were diagnosed with MMD before 18 years of age. The authors administered a structured questionnaire consisting of 11 items based on screening checklists published in the Japanese clinical guidelines for juvenile orthostatic dysregulation in young patients...
September 1, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28835815/correction-to-figures-a-reply-to-hwang-and-peli-2014
#6
Zhongpai Gao
In Hwang and Peli (2014), few errors occurred in computing the angular disparities. The direction of peripheral depth distortion (the angular disparity differences between what it is in real-world 3D viewing and S3D viewing) is reversed when the computational errors were corrected, making the perception of the peripheral depth to be expanded, not compressed. This reply points to the error and provides the corrected figures. Correcting these errors does not affect the general conclusion that S3D viewed on single screen display induces peripheral depth distortion which may be a cause of visually induced motion sickness...
July 2017: I-Perception
https://www.readbyqxmd.com/read/28834943/clinical-characteristics-of-benign-recurrent-vestibulopathy-clearly-distinctive-from-vestibular-migraine-and-meni%C3%A3-re-s-disease
#7
Babette F van Esch, Erik van Wensen, Hester J van der Zaag-Loonen, Peter Paul G van Benthem, Roeland B van Leeuwen
OBJECTIVE: We aimed to systematically investigate the clinical characteristics of benign recurrent vestibulopathy (BRV), vestibular migraine (VM), and Menière's disease (MD) and to assess whether clinical symptoms exist that are unique to BRV. STUDY DESIGN: Prospective cohort study. SETTING: Tertiary referral center. METHODS: Between January 2015 and November 2016, patients were prospectively recruited at a specialized dizziness clinic...
October 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28802464/mirage-events-driver-haptic-steering-alerts-in-a-motion-base-driving-simulator-a-method-for-selecting-an-optimal-hmi
#8
Walter Talamonti, Louis Tijerina, Mike Blommer, Radhakrishnan Swaminathan, Reates Curry, R Darin Ellis
This paper describes a new method, a 'mirage scenario,' to support formative evaluation of driver alerting or warning displays for manual and automated driving. This method provides driving contexts (e.g., various Times-To-Collision (TTCs) to a lead vehicle) briefly presented and then removed. In the present study, during each mirage event, a haptic steering display was evaluated. This haptic display indicated a steering response may be initiated to drive around an obstacle ahead. A motion-base simulator was used in a 32-participant study to present vehicle motion cues similar to the actual application...
November 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28777827/effects-of-visual-flow-direction-on-signs-and-symptoms-of-cybersickness
#9
Alireza Mazloumi Gavgani, Deborah M Hodgson, Eugene Nalivaiko
Our objective was to assess the influence of visual flow direction on physiological changes and symptoms elicited by cybersickness. Twelve healthy subjects (6 male and 6 female) were exposed to a 15-min virtual ride on a rollercoaster on two different days in a counterbalanced manner, such half of participants were facing forward during the first ride while another half was facing backward. Forehead skin conductance, heart rate and HRV parameters (SDRR, RMSSD) were collected as objective measures; subjective symptoms were assessed with the Motion Sickness Assessment Questioner immediately after exposure...
2017: PloS One
https://www.readbyqxmd.com/read/28739058/acupressure-in-management-of-postoperative-nausea-and-vomiting-in-high-risk-ambulatory-surgical-patients
#10
Debra Hofmann, Carrie Murray, Janet Beck, Rebecca Homann
PURPOSE: The purpose of this randomized blinded placebo-controlled research study was to investigate the effect of acupressure over 24 hours postoperatively for ambulatory surgical patients who are identified as high risk for PONV. DESIGN: A randomized blinded placebo-controlled study design was implemented. METHODS: Study enrollment criteria included four of five risk factors as defined in 2006 by American Society of PeriAnesthesia Nurses PONV/postdischarge nausea and vomiting guidelines: female, PONV history or motion sickness, nonsmoker, and volatile gas general anesthetic...
August 2017: Journal of Perianesthesia Nursing: Official Journal of the American Society of PeriAnesthesia Nurses
https://www.readbyqxmd.com/read/28660325/-i-will-do-laparoscopy-somewhere-else-total-highly-immersive-virtual-reality-without-side-effects
#11
T Huber, M Paschold, C Hansen, H Lang, W Kneist
BACKGROUND: For virtual reality laparosopic simulation we developed a new, highly immersive simulation mode. The goal of the current pilot study was to investigate if kinetosis or other negative vegetative side effects can be caused by a total virtual training set-up (TVRL). METHODS: In this study 20 participants with varying degrees of expertise in laparoscopy performed 3 tasks (i.e. ring exchange, fine dissection and cholecystectomy) in regular (VRL) and immersive mode (TVRL) with a head-mounted display (HMD) on a laparoscopic simulator...
June 28, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28659825/brain-activation-by-h1-antihistamines-challenges-conventional-view-of-their-mechanism-of-action-in-motion-sickness-a-behavioral-c-fos-and-physiological-study-in-suncus-murinus-house-musk-shrew
#12
Longlong Tu, Zengbing Lu, Karolina Dieser, Christina Schmitt, Sze Wa Chan, Man P Ngan, Paul L R Andrews, Eugene Nalivaiko, John A Rudd
Motion sickness occurs under a variety of circumstances and is common in the general population. It is usually associated with changes in gastric motility, and hypothermia, which are argued to be surrogate markers for nausea; there are also reports that respiratory function is affected. As laboratory rodents are incapable of vomiting, Suncus murinus was used to model motion sickness and to investigate changes in gastric myoelectric activity (GMA) and temperature homeostasis using radiotelemetry, whilst also simultaneously investigating changes in respiratory function using whole body plethysmography...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28649590/enhancing-data-visualisation-to-capture-the-simulator-sickness-phenomenon-on-the-usefulness-of-radar-charts
#13
Romain Chaumillon, Thomas Romeas, Charles Paillard, Delphine Bernardin, Guillaume Giraudet, Jean-François Bouchard, Jocelyn Faubert
The data presented in this article are related to the research article entitled "The use of transdermal scopolamine to solve methodological issues raised by gender differences in susceptibility to simulator sickness" (Chaumillon et al., 2017) [1]. In an outstanding first demonstration, Kennedy et al. [2] showed that the Simulator Sickness Questionnaire (SSQ) is an appropriate tool to suit the purposes of characterizing motion sickness experienced in virtual environments. This questionnaire has since been used in many scientific studies...
August 2017: Data in Brief
https://www.readbyqxmd.com/read/28641681/the-effects-of-training-on-anxiety-and-task-performance-in-simulated-suborbital-spaceflight
#14
Rebecca S Blue, Frederick Bonato, Kimberly Seaton, Andrea Bubka, Johnené L Vardiman, Charles Mathers, Tarah L Castleberry, James M Vanderploeg
INTRODUCTION: In commercial spaceflight, anxiety could become mission-impacting, causing negative experiences or endangering the flight itself. We studied layperson response to four varied-length training programs (ranging from 1 h-2 d of preparation) prior to centrifuge simulation of launch and re-entry acceleration profiles expected during suborbital spaceflight. We examined subject task execution, evaluating performance in high-stress conditions. We sought to identify any trends in demographics, hemodynamics, or similar factors in subjects with the highest anxiety or poorest tolerance of the experience...
July 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28634889/the-efficacy-of-airflow-and-seat-vibration-on-reducing-visually-induced-motion-sickness
#15
Sarah D'Amour, Jelte E Bos, Behrang Keshavarz
Visually induced motion sickness (VIMS) is a well-known sensation in virtual environments and simulators, typically characterized by a variety of symptoms such as pallor, sweating, dizziness, fatigue, and/or nausea. Numerous methods to reduce VIMS have been previously introduced; however, a reliable countermeasure is still missing. In the present study, the effect of airflow and seat vibration to alleviate VIMS was investigated. Eighty-two participants were randomly assigned to one of four groups (airflow, vibration, combined airflow and vibration, and control) and then exposed to a 15 min long video of a bicycle ride shot from first-person view...
June 20, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28611930/vestibular-derangement-and-motion-intolerance-in-vater-association
#16
Orit Samuel, Avi Shupak, Ayelet Eran, Dror Tal
VATER association is a nonrandom occurrence of congenital malformations: vertebral defects, anal atresia, tracheoesophageal fistula, renal defects, and radial bone anomalies. We report the case of a 19-year-old man with a childhood diagnosis of VATER association, who presented to the motion sickness clinic with severe seasickness. We discuss the clinical and laboratory diagnosis of vestibular pathophysiology, which was confirmed by MRI of lateral semicircular canal and vestibule dysplasia. We suggest the possibility of vestibular involvement as part of the developmental field defect associated with VATER syndrome, which hitherto has rarely been reported...
2017: Case Reports in Otolaryngology
https://www.readbyqxmd.com/read/28607373/intrinsic-functional-connectivity-reduces-after-first-time-exposure-to-short-term-gravitational-alterations-induced-by-parabolic-flight
#17
Angelique Van Ombergen, Floris L Wuyts, Ben Jeurissen, Jan Sijbers, Floris Vanhevel, Steven Jillings, Paul M Parizel, Stefan Sunaert, Paul H Van de Heyning, Vincent Dousset, Steven Laureys, Athena Demertzi
Spaceflight severely impacts the human body. However, little is known about how gravity and gravitational alterations affect the human brain. Here, we aimed at measuring the effects of acute exposure to gravity transitions. We exposed 28 naïve participants to repetitive alterations between normal, hyper- and microgravity induced by a parabolic flight (PF) and measured functional MRI connectivity changes. Scans were acquired before and after the PF. To mitigate motion sickness, PF participants received scopolamine prior to PF...
June 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28583057/auricular-acupressure-in-the-prevention-of-postoperative-nausea-and-emesis-a-randomized-controlled-trial
#18
Cynthia Feng, Jovan Popovic, Richard Kline, Jung Kim, Rafael Matos, Sarah Lee, Joseph Bosco
INTRODUCTION: Successful antiemesis contributes significantly to quality, safety, and patient satisfaction. Patients undergoing general anesthesia often experience postoperative nausea and vomiting (PONV). Acupressure offers a side effect-free alternative to common first-line antiemetics. Because the patient may perceive needle acupuncture as uncomfortable, acupressure is a desirable alternative for the prevention of PONV. METHODS: This study was a randomized, prospective, double-blinded clinical trial investigating the effect of acupressure in patients with a history of PONV and motion sickness...
April 2017: Bulletin of the Hospital for Joint Diseases
https://www.readbyqxmd.com/read/28562425/rotational-and-collic-vestibular-evoked-myogenic-potential-testing-in-normal-developing-children-and-children-with-combined-attention-deficit-hyperactivity-disorder
#19
Younes Lotfi, Nima Rezazadeh, Abdollah Moossavi, Hojjat Allah Haghgoo, Reza Rostami, Enayatollah Bakhshi, Faride Badfar, Sedigheh Farokhi Moghadam, Vahid Sadeghi-Firoozabadi, Yousef Khodabandelou
OBJECTIVES: Vestibular dysfunction in childhood can have a major effect on a child's developmental process. Balance function has been reported to be poorer in children with attention deficit and hyperactivity disorder (ADHD) than in their typically developing peers. Due to contradictory available evidence and the paucity of research on vestibular function specifically in children with combined ADHD (cADHD), we designed this aged-matched study to assess vestibular function in children with cADHD...
May 26, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28555125/determinants-of-motion-sickness-in-tilting-trains-coriolis-cross-coupling-stimuli-and-tilt-delay
#20
Giovanni Bertolini, Meek Angela Durmaz, Kim Ferrari, Alexander Küffer, Charlotte Lambert, Dominik Straumann
Faster trains require tilting of the cars to counterbalance the centrifugal forces during curves. Motion sensitive passengers, however, complain of discomfort and overt motion sickness. A recent study comparing different control systems in a tilting train, suggested that the delay of car tilts relative to the curve of the track contributes to motion sickness. Other aspects of the motion stimuli, like the lateral accelerations and the car jitters, differed between the tested conditions and prevented a final conclusion on the role of tilt delay...
2017: Frontiers in Neurology
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