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The Journal of Vestibular Research is a peer-reviewed journal that publishes experimental and observational studies, review papers, and theoretical papers based on current knowledge of the vestibular system, and letters to the Editor.
Authors: Demirhan, Mehmet Alp | Celebisoy, Nese
Article Type: Research Article
Abstract: BACKGROUND: Cognitive deficits have been defined in patients with bilateral and unilateral vestibular loss. OBJECTIVE: To investigate cognitive functions in patients with episodic vestibular disorders. METHODS: Nineteen patients with Meniere’s disease (MD), 19 patients with vestibular migraine (VM) and 21 age and education matched healthy controls were studied. Mini Mental State Examination assessing global mental status, Reading Span Test and the Stroop Test evaluating working memory, cognitive processing, reading comprehension and attention, Trail Making Test and Benton’s Judgment of Line Orientation Test investigating visual processing, visuospatial skills, processing speed were used. Beck depression and anxiety inventories …were given to evaluate the emotional status. RESULTS: Cognitive test results of the MD and VM patients were not significantly different from the healthy controls (p > 0.05) as well as Beck depression scores (p = 0.14). Beck anxiety scores showed significant difference (p = 0.003). VM patients had significantly higher scores than the healthy controls (p = 0.002) on pairwise comparisons. The scores of the MD patients did not reach statistical significance (p = 0.15). CONCLUSION: Episodic vestibular disorders like MD and VM without inter-ictal vestibular deficits do not seem to be associated with cognitive impairment. Patients with VM have significantly higher anxiety scores than the healthy controls and MD patients. Show more
Keywords: Meniere’s disease, vestibular migraine, cognition, anxiety, depression
DOI: 10.3233/VES-220025
Citation: Journal of Vestibular Research, vol. Pre-press, no. Pre-press, pp. 1-8, 2022
Authors: Micarelli, Alessandro | Viziano, Andrea | Carbini, Valentina | Misici, Ilaria | Guzzo, Federico | Micarelli, Beatrice | Alessandrini, Marco
Article Type: Research Article
Abstract: Background: Unilateral vestibular hypofunction (UVH) may lead to modifications on metabolism and body composition. Vestibular rehabilitation (VR) demonstrated its effectiveness in ameliorating balance function and several other daily-living aspects. Objectives: The aim of this study was to evaluate metabolic composition, by means of bioelectrical impedance analysis (BIA) and daily activity, with the use of a wrist-worn movement tracker, in UVH participants before and after VR, and to compare data with a healthy control group (CG) of adults. Methods: 46 UVH and 60 CG participants underwent otoneurological testing, self-report and performance questionnaires, BIA, and wore a device …tracking daily movement and energy expenditure for one full day; this was performed before and after VR. Results: UVH participants demonstrated a significant (p = 0.008) increase in muscle mass after VR, and, when compared to CG, no differences were present with respect to visceral fat and muscle mass. UVH adults reported a significant increase in energy expenditure spent in movement (p = 0.008) and during the day (p = 0.009), daily number of strides (p = 0.009) and calories spent in sweeping (p = 0.009) and stairing (p = 0.008). Conclusions: Results from this study show that VR provided an improvement of metabolic function and body composition of people with UVH, possibly by contrasting structural modifications in neural pathways stemming from the vestibular nuclei and connected to autonomous function. Show more
Keywords: Vestibular hypofunction, vestibular rehabilitation, movement tracker, bioelectrical impedance analysis, body composition
DOI: 10.3233/VES-220019
Citation: Journal of Vestibular Research, vol. Pre-press, no. Pre-press, pp. 1-13, 2022
Authors: Tribukait, Arne | Bergsten, Eddie | Brink, Andreas | Eiken, Ola
Article Type: Research Article
Abstract: BACKGROUND: During a simulated coordinated turn in a gondola centrifuge, experienced pilots show a substantial inter-individual variability in visual measures of perceived roll tilt. Because of the centrifuge’s small radius, the pattern of stimuli to the semicircular canals during acceleration of the centrifuge differs in certain respects from that of an aircraft entering a turn. OBJECTIVE: To explore whether these differences may be of significance for the pilot’s roll- plane orientation and whether individual characteristics revealed in the centrifuge correspond to those during real flight. METHOD: 8 fixed-wing air-force pilots were tested in a centrifuge and …a high-performance aircraft. The centrifuge was accelerated to 2 G (gondola inclination 60°) within 10 s. The duration at 2 G was 6 minutes. Similar profiles were created in the aircraft. The subjective visual horizontal (SVH) was measured using an adjustable luminous line in darkness. Each pilot was tested on three occasions: centrifuge (2 runs), aircraft (2 turns), centrifuge (2 runs). For each 2-G exposure, initial and final SVH values were established via curve fitting. RESULT: Despite a large inter-individual variability (±SD), group means were similar in the aircraft (initial: 43.0±20.6°; final: 22.5±14.8°) and centrifuge (initial: 40.6±17.0°; final: 20.5±16.0°). Further, individual peculiarities in response patterns were similar in the two conditions. For both the initial and final SVH tilt there was a high correlation between centrifuge and aircraft. CONCLUSION: The correspondence between conditions suggests that the centrifuge is an adequate means for demonstrating the fundamental motion pattern of coordinated flight and also for establishing the individual pilot’s ability to perceive an aircraft’s roll attitude. Findings are discussed in connection with vestibular learning and the possibility of underlying differences between pilots in the keenness for semicircular canal and somatosensory cues. Show more
Keywords: Vestibular system, vestibular psychophysics, spatial disorientation, subjective horizontal, subjective vertical
DOI: 10.3233/VES-220016
Citation: Journal of Vestibular Research, vol. Pre-press, no. Pre-press, pp. 1-19, 2022
Authors: Strupp, Michael | Kim, Ji-Soo | Murofushi, Toshihisa | Straumann, Dominik | Jen, Joanna C. | Rosengren, Sally M. | Della Santina, Charles C. | Kingma, Herman
Article Type: Correction
DOI: 10.3233/VES-229002
Citation: Journal of Vestibular Research, vol. Pre-press, no. Pre-press, pp. 1-1, 2022
Authors: van de Berg, Raymond | Ramos, Angel | van Rompaey, Vincent | Bisdorff, Alexandre | Perez-Fornos, Angelica | Rubinstein, Jay T. | Phillips, James O. | Strupp, Michael | Della Santina, Charles C. | Guinand, Nils
Article Type: Correction
DOI: 10.3233/VES-229001
Citation: Journal of Vestibular Research, vol. Pre-press, no. Pre-press, pp. 1-1, 2022
Authors: Al-Sharif, Doaa S. | Tucker, Carole A. | Coffman, Donna L. | Keshner, Emily A.
Article Type: Research Article
Abstract: INTRODUCTION: No reliable biometric measurement of vestibular involvement with migraine is currently available. OBJECTIVE: Measures of autonomic nervous system and postural responses could serve as quantifiable indicators of vestibular involvement with migraine. METHODS: A convenience sample of 22 young healthy adults (34±9 years old) and 23 young adults (34±8 years old) diagnosed with vestibular migraine (VM) participated. A rod and frame test and clinical outcome measures of dizziness and mobility were administered. Participants stood on foam while viewing two dynamic virtual environments. Trunk acceleration in three planes and electrodermal activity (EDA) were assessed with …wearable sensors. Linear mixed models were used to examine magnitude and smoothness of trunk acceleration and tonic and phasic EDA. A Welch’s t -test and associations between measures were assessed with a Pearson Correlation Coefficient. Effect sizes of group mean differences were calculated using Cohen’s d. RESULTS: Visual dependence was present in 83% of the VM population. Individuals with VM exhibited lower baseline EDA (t(4.17) = –7.2, p = 0.001) and greater normalized trunk accelerations in the vertical (t(42.5) = 2.861, p = 0.006) and medial (t(46.6) = 2.65, p = 0.01) planes than healthy participants. Tonic EDA activity increased significantly across the period of the trial (F (1,417) = 23.31, p = 0.001) in the VM group. Significant associations appeared between vertical trunk acceleration and EDA, Dizziness Handicap Inventory, and Activities of Balance Confidence tools. CONCLUSIONS: Higher tonic EDA activity in healthy adults results in more accurate postural reactions. Results support the supposition that EDA activity and postural acceleration are significantly different between VM and healthy individuals when accommodating for postural instability and visual-vestibular conflict. Show more
Keywords: Vestibular migraine, virtual reality, autonomic nervous system, VVM, otoliths
DOI: 10.3233/VES-220004
Citation: Journal of Vestibular Research, vol. Pre-press, no. Pre-press, pp. 1-12, 2022
Authors: Debenham, M.I.B. | Grantham, T.D.A. | Smirl, J.D. | Foster, G.E. | Dalton, B.H.
Article Type: Research Article
Abstract: BACKGROUND: Hypoxia influences standing balance and vestibular function. OBJECTIVE: The purpose here was to investigate the effect of hypoxia on the vestibular control of balance. METHODS: Twenty participants (10 males; 10 females) were tested over two days (normobaric hypoxia and normoxia). Participants stood on a force plate (head rotated leftward) and experienced random, continuous electrical vestibular stimulation (EVS) during trials of eyes open (EO) and closed (EC) at baseline (BL), after 5 (H1), 30 (H2) and 55-min (H3) of hypoxia, and 10-min into normoxic recovery (NR). Vestibular-evoked balance responses were quantified using cumulant density, coherence, and …gain functions between EVS and anteroposterior forces. RESULTS: Oxyhemoglobin saturation, end-tidal oxygen and carbon dioxide decreased for H1-3 compared to BL; however, end-tidal carbon dioxide remained reduced at NR with EC (p ≤0.003). EVS-AP force peak-to-peak amplitude was lower at H3 and NR than at BL (p ≤0.01). At multiple frequencies, EVS-AP force coherence and gain estimates were lower at H3 and NR than BL for females; however, this was only observed for coherence for males. CONCLUSIONS: Overall, vestibular-evoked balance responses are blunted following normobaric hypoxia >30 min, which persists into NR and may contribute to the reported increases in postural sway. Show more
Keywords: Hypoxia, low oxygen, balance control, vestibular system, somatosensory system, electrical vestibular stimulation, vestibular-evoked responses
DOI: 10.3233/VES-220075
Citation: Journal of Vestibular Research, vol. Pre-press, no. Pre-press, pp. 1-19, 2022
Authors: Ota, Koshi | Nishioka, Daisuke | Katayama, Yusuke | Kitamura, Tetsuhisa | Masui, Jun | Ota, Kanna | Nitta, Masahiko | Matsuoka, Tetsuya | Takasu, Akira
Article Type: Research Article
Abstract: OBJECTIVE: We aimed to identify the proportion of each medical condition or disease contributing to dizziness and their disposition in the Emergency Department (ED). METHODS: This retrospective, descriptive study examined data from the Osaka Emergency Information Research Intelligent Operation Network system in Japan for the period from January 1, 2018 to December 31, 2020. The inclusion criteria were patients with presumptive ICD-10 codes including “dizziness” or “vertigo”. Patient demographics were compared using the χ 2 test and Kruskal-Wallis test. Logistic regression analysis was performed to calculate disposition from ED (emergency admission or discharge) over the 3-year …study period. The adjusted odds ratio (OR) and 95% confidence interval (CI) were calculated using multivariate analyses. RESULTS: During the 3-year study period, a total of 1,346,457 patients (462,773 in 2018, 468,697 in 2019, and 414,987 in 2020; P < 0.001), including 53,190 patients with dizziness (18,396 in 2018, 18,649 in 2019, and 16,145 in 2020; P = 0.058), were identified as having been transported to hospitals by ambulance in Osaka Prefecture. Dizziness and giddiness (R42) was the most common form of dizziness, in 27,075 cases (9,570 in 2018, 9,613 in 2019, and 7,892 in 2020; P < 0.001; Gender composition showed 10,483 males and 16,592 females.) Vestibular Neuronitis (H81.2) showed significant increase in 2020 compared to the two preceding years (91 in 2018, 119 in 2019, and 130 in 2020, P = 0.003; including 174 males and 167 females, respectively). Of the 53,190 patients with dizziness, 11,862 (22.3% ; 4,323 males, 7,539 females) were admitted to hospital. The odds ratio (OR) for emergency admission for dizziness in 2020 during the COVID-19 pandemic was 0.98 (95% confidence interval (CI), 0.93– 1.03) with reference to 2018. CONCLUSION: Patients with dizziness accounted approximately 4% of ED transportations, with about 20% requiring hospital admission, irrespective of the COVID-19 pandemic. Vestibular neuronitis was significantly increased in 2020. Show more
Keywords: Admission, dizziness, EMS, epidemiology, ORION
DOI: 10.3233/VES-220024
Citation: Journal of Vestibular Research, vol. Pre-press, no. Pre-press, pp. 1-10, 2022
Authors: Gallagher, M. | Romano, F. | Bockisch, C.J. | Ferrè, E.R. | Bertolini, G.
Article Type: Research Article
Abstract: BACKGROUND: The vestibular system provides a comprehensive estimate of self-motion in 3D space. Widely used to artificially stimulate the vestibular system, binaural-bipolar square-wave Galvanic Vestibular Stimulation (GVS) elicits a virtual sensation of roll rotation. Postural responses to GVS have been clearly delineated, however quantifying the perceived virtual rotation vector has not been fully realised. OBJECTIVE: We aimed to quantify the perceived virtual roll rotation vector elicited by GVS using a psychophysical approach on a 3D turntable. METHODS: Participants were placed supine on the 3D turntable and rotated around the naso-occipital axis while supine and received square-wave …bipolar-binaural GVS or sham stimulation. GVS amplitudes and intensities were systematically manipulated. The turntable motion profile consisted of a velocity step of 20°/s2 until the trial velocity between 0–20°/s was reached, followed by a 1°/s ramp until the end of the trial. In a psychophysical adaptive staircase procedure, we systematically varied the roll velocity to identify the exact velocity that cancelled the perceived roll sensation induced by GVS. RESULTS: Participants perceived a virtual roll rotation towards the cathode of approximately 2°/s velocity for 1 mA GVS and 6°/s velocity for 2.5 mA GVS. The observed values were stable across repetitions. CONCLUSIONS: Our results quantify for the first time the perceived virtual roll rotations induced by binaural-bipolar square-wave GVS. Importantly, estimates were based on perceptual judgements, in the absence of motor or postural responses and in a head orientation where the GVS-induced roll sensation did not interact with the perceived direction of gravity. This is an important step towards applications of GVS in different settings, including sensory substitution or Virtual Reality. Show more
Keywords: Vestibular system, Galvanic Vestibular Stimulation, natural vestibular stimulation, vestibular perception
DOI: 10.3233/VES-220031
Citation: Journal of Vestibular Research, vol. Pre-press, no. Pre-press, pp. 1-10, 2022
Authors: Jeong, Junhui | Youk, Tae Mi | Choi, Hyun Seung
Article Type: Research Article
Abstract: BACKGROUND: There have been no comprehensive studies on the incidence of peripheral vestibular disorders based on population-based data for a long-term period. OBJECTIVE: We investigated the incidence of peripheral vestibular disorders using population-based data representing the whole population of South Korea. METHODS: This study used the National Health Insurance Service data in Korea from 2008 to 2020. Peripheral vestibular disorders such as benign paroxysmal positional vertigo (BPPV), vestibular neuritis (VN), and Meniere’s disease (MD) were defined with diagnostic, treatment, or audiovestibular test codes. The annual incidence in total and according to sex, age, and residence was …analyzed. RESULTS: The annual incidence of BPPV, VN, and MD per 100,000 was 51.4, 22.7, and 12.4 in 2008 and 181.1, 62.9, and 50.5 in 2020, respectively. The incidence of each was significantly different by sex (p < 0.001), age (p < 0.001), and residence (p < 0.001), with the highest value in female, people aged 60 years or older, and people who resided in metropolitan cities. CONCLUSIONS: The annual incidence of BPPV, VN, and MD had increasing trends from 2008 through 2020 in South Korea, and all were significantly higher in female, people aged 60 years or older, and people who resided in metropolitan cities. Show more
Keywords: Incidence, peripheral vestibular disorder, peripheral vertigo, benign paroxysmal positional vertigo, vestibular neuritis, Meniere’s disease, population-based study
DOI: 10.3233/VES-220085
Citation: Journal of Vestibular Research, vol. Pre-press, no. Pre-press, pp. 1-8, 2022
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