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Keshavarz B, Adams MS, Gabriel G, Sergio LE, Campos JL. Concussion can increase the risk of visually induced motion sickness. Neurosci Lett 2024; 830:137767. [PMID: 38599370 DOI: 10.1016/j.neulet.2024.137767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 04/07/2024] [Indexed: 04/12/2024]
Abstract
Concussion can lead to various symptoms such as balance problems, memory impairments, dizziness, and/or headaches. It has been previously suggested that during self-motion relevant tasks, individuals with concussion may rely heavily on visual information to compensate for potentially less reliable vestibular inputs and/or problems with multisensory integration. As such, concussed individuals may also be more sensitive to other visually-driven sensations such as visually induced motion sickness (VIMS). To investigate whether concussed individuals are at elevated risk of experiencing VIMS, we exposed participants with concussion (n = 16) and healthy controls (n = 15) to a virtual scene depicting visual self-motion down a grocery store aisle at different speeds. Participants with concussion were further separated into symptomatic and asymptomatic groups. VIMS was measured with the SSQ before and after stimulus exposure, and visual dependence, self-reported dizziness, and somatization were recorded at baseline. Results showed that concussed participants who were symptomatic demonstrated significantly higher SSQ scores after stimulus presentation compared to healthy controls and those who were asymptomatic. Visual dependence was positively correlated with the level of VIMS in healthy controls and participants with concussion. Our results suggest that the presence of concussion symptoms at time of testing significantly increased the risk and severity of VIMS. This finding is of relevance with regards to the use of visual display devices such as Virtual Reality applications in the assessment and rehabilitation of individuals with concussion.
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Affiliation(s)
- Behrang Keshavarz
- KITE Research Institute, Toronto Rehab-University Health Network, Toronto, Canada; Department of Psychology, Toronto Metropolitan University, Toronto, Canada.
| | - Meaghan S Adams
- KITE Research Institute, Toronto Rehab-University Health Network, Toronto, Canada; Baycrest Health Sciences, Toronto, Canada
| | - Grace Gabriel
- KITE Research Institute, Toronto Rehab-University Health Network, Toronto, Canada; Department of Psychology, University of Toronto, Canada
| | - Lauren E Sergio
- Centre for Vision Research, York University, Toronto, Canada
| | - Jennifer L Campos
- KITE Research Institute, Toronto Rehab-University Health Network, Toronto, Canada; Department of Psychology, University of Toronto, Canada; Centre for Vision Research, York University, Toronto, Canada
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2
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Agathos CP, Shanidze NM. Visual Field Dependence Persists in Age-Related Central Visual Field Loss. Invest Ophthalmol Vis Sci 2024; 65:22. [PMID: 38345555 PMCID: PMC10866173 DOI: 10.1167/iovs.65.2.22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 01/07/2024] [Indexed: 02/15/2024] Open
Abstract
Purpose To examine whether the age-related increase in visual field dependence persists in older adults with central field loss (CFL). Methods Twenty individuals with CFL were grouped into participants with age-related binocular CFL (CFL, n = 9), age-related monocular CFL/relative scotomata (mCFL, n = 8), and CFL occurring at a young age (yCFL, n = 3). Seventeen controls were age-matched to the older CFL groups (OA) and three to the yCFL group (yOA). Participants judged the tilt direction of a rod presented at various orientations under conditions with and without a visual reference. Visual field dependence was determined as the difference in judgment bias between trials with and without the visual reference. Visual field dependence was examined between groups and relative to visual acuity and contrast sensitivity. Results All older groups performed similarly without the visual reference. The CFL group showed greater visual field dependence than the OA group (Mann-Whitney U test; U = 39, P = 0.045). However, there was no group difference when considering all three older groups (Kruskal-Wallis ANOVA; H(2, N = 34) = 4.31, P = 0.116). Poorer contrast sensitivity correlated with greater visual field dependence (P = 0.017; ρ = -0.43). Conclusions Visual field dependence persists in older adults with CFL and seems exacerbated in those with dense binocular scotomata. This could be attributed to the sensitivity of the spared peripheral retina to orientation and motion cues. The relationship with contrast sensitivity further suggests that a decline in visual function is associated with an increase in visual field dependence beyond the effects of normal aging. These observations can guide tailored care and rehabilitation in older adults with CFL.
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Affiliation(s)
- Catherine P. Agathos
- The Smith-Kettlewell Eye Research Institute, San Francisco, California, United States
| | - Natela M. Shanidze
- The Smith-Kettlewell Eye Research Institute, San Francisco, California, United States
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3
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O'Dowd A, Hirst RJ, Setti A, Donoghue OA, Kenny RA, Newell FN. The temporal precision of audiovisual integration is associated with longitudinal fall incidents but not sensorimotor fall risk in older adults. Sci Rep 2023; 13:7167. [PMID: 37137879 PMCID: PMC10156851 DOI: 10.1038/s41598-023-32404-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 03/27/2023] [Indexed: 05/05/2023] Open
Abstract
Sustained multisensory integration over long inter-stimulus time delays is typically found in older adults, particularly those with a history of falls. However, the extent to which the temporal precision of audio-visual integration is associated with longitudinal fall or fall risk trajectories is unknown. A large sample of older adults (N = 2319) were grouped into longitudinal trajectories of self-reported fall incidents (i.e., decrease, stable, or increase in number) and, separately, their performance on a standard, objective measure of fall risk, Timed Up and Go (TUG; stable, moderate decline, severe decline). Multisensory integration was measured once as susceptibility to the Sound-Induced Flash Illusion (SIFI) across three stimulus onset asynchronies (SOAs): 70 ms, 150 ms and 230 ms. Older adults with an increasing fall number showed a significantly different pattern of performance on the SIFI than non-fallers, depending on age: For adults with increasing incidents of falls, those aged 53-59 years showed a much smaller difference in illusion susceptibility at 70 ms versus 150 ms than those aged 70 + years. In contrast, non-fallers showed a more comparable difference between these SOA conditions across age groups. There was no association between TUG performance trajectories and SIFI susceptibility. These findings suggests that a fall event is associated with distinct temporal patterns of multisensory integration in ageing and have implications for our understanding of the mechanisms underpinning brain health in older age.
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Affiliation(s)
- Alan O'Dowd
- School of Psychology and Institute of Neuroscience, Trinity College Green, Dublin 2, D02 PN40, Ireland.
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, Dublin, Ireland.
| | - Rebecca J Hirst
- School of Psychology and Institute of Neuroscience, Trinity College Green, Dublin 2, D02 PN40, Ireland
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, Dublin, Ireland
| | - Annalisa Setti
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, Dublin, Ireland
- School of Applied Psychology, University College Cork, Cork, Ireland
| | - Orna A Donoghue
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, Dublin, Ireland
| | - Rose Anne Kenny
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, Dublin, Ireland
- Mercer Institute for Successful Ageing, St. James Hospital, Dublin, Ireland
| | - Fiona N Newell
- School of Psychology and Institute of Neuroscience, Trinity College Green, Dublin 2, D02 PN40, Ireland
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4
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Razzak RA, Jahrami H, Husni M, Ali ME, Bagust J. Perceptual visual dependence for spatial orientation in patients with schizophrenia. PLoS One 2022; 17:e0278718. [PMID: 36455045 PMCID: PMC9714874 DOI: 10.1371/journal.pone.0278718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 11/22/2022] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Patients with schizophrenia are reported to have vestibular dysfunction and to weigh vestibular input to a lesser extent compared to healthy controls. Such deficits may increase visual dependence (VD) for spatial orientation at a perceptual level in these patients. The aim of this study is to compare VD levels between healthy control and patients with schizophrenia and to explore associations between VD and clinical measures in these patients. Relation of VD to antipsychotic drug treatment is also discussed. METHOD 18 patients with schizophrenia and 19 healthy controls participated in this study. The Rod and Disc Test (RDT) was used to create an optokinetic surround around a centrally located rod. Participants aligned the rod to their subjective visual vertical (SVV) in both static and dynamic disc conditions. VD was calculated as the difference in SVV between these two conditions. RESULTS There was no group difference or gender difference in static or dynamic SVV as well as VD. There was no correlation between VD and any of the Positive and Negative Syndrome Scale (PANSS) scores, however VD was significantly correlated to illness duration in the patient group. CONCLUSIONS Schizophrenia is not associated with greater VD levels at a perceptual level, compared to controls, indicating adequate visuo-vestibular integration for judging line verticality in these patients. Patients with greater chronicity of the disease are more visually dependent than those less chronically ill, consistent with previous reports of possible vestibular dysfunction in patients with schizophrenia. This may affect their daily functioning in dynamic visual environments.
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Affiliation(s)
- Rima Abdul Razzak
- Department of Physiology, College of Medicine and Medical Sciences (CMMS), Arabian Gulf University (AGU), Manama, Bahrain
- * E-mail:
| | - Haitham Jahrami
- Ministry of Health (MOH), Manama, Bahrain
- Department of Psychiatry, College of Medicine and Medical Sciences (CMMS), Arabian Gulf University (AGU), Manama, Bahrain
| | - Mariwan Husni
- Department of Psychiatry, College of Medicine and Medical Sciences (CMMS), Arabian Gulf University (AGU), Manama, Bahrain
- Northern Ontario School of Medicine University, Ontario, ON, Canada
| | | | - Jeff Bagust
- Faculty of Health and Social Sciences, Bournemouth University, Poole, United Kingdom
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5
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The impact of external and internal focus of attention on visual dependence and EEG alpha oscillations during postural control. J Neuroeng Rehabil 2022; 19:81. [PMID: 35883085 PMCID: PMC9316701 DOI: 10.1186/s12984-022-01059-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 07/07/2022] [Indexed: 11/10/2022] Open
Abstract
Background The ability to maintain upright posture requires successful integration of multiple sensory inputs (visual, vestibular, and somatosensory). When one or more sensory systems become unreliable, the postural control system must “down-weight” (or reduce the influence of) those senses and rely on other senses to maintain postural stability. As individuals age, their ability to successfully reweight sensory inputs diminishes, leading to increased fall risk. The present study investigates whether manipulating attentional focus can improve the ability to prioritize different sensory inputs for postural control. Methods Forty-two healthy adults stood on a balance board while wearing a virtual reality (VR) head-mounted display. The VR environment created a multisensory conflict amongst the different sensory signals as participants were tasked with maintaining postural stability on the balance board. Postural sway and scalp electroencephalography (EEG) were measured to assess visual weighting and cortical activity changes. Participants were randomized into groups that received different instructions on where to focus their attention during the balance task. Results Following the instructions to direct attention toward the movement of the board (external focus group) was associated with lower visual weighting and better balance performance than when not given any instructions on attentional focus (control group). Following the instructions to direct attention towards movement of the feet (internal focus group) did not lead to any changes in visual weighting or balance performance. Both external and internal focus groups exhibited increased EEG alpha power (8–13 Hz) activity over the occipital cortex as compared to the control group. Conclusions Current results suggest that directing one’s attention externally, away from one’s body, may optimize sensory integration for postural control when visual inputs are incongruent with somatosensory and vestibular inputs. Current findings may be helpful for clinicians and researchers in developing strategies to improve sensorimotor mechanisms for balance.
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Benady A, Zadik S, Zeilig G, Gilaie-Dotan S, Plotnik M. Gait Speed Modulations Are Proportional to Grades of Virtual Visual Slopes-A Virtual Reality Study. Front Neurol 2021; 12:615242. [PMID: 34512493 PMCID: PMC8425350 DOI: 10.3389/fneur.2021.615242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 07/14/2021] [Indexed: 11/17/2022] Open
Abstract
Gait is a complex mechanism relying on integration of several sensory inputs such as vestibular, proprioceptive, and visual cues to maintain stability while walking. Often humans adapt their gait to changes in surface inclinations, and this is typically achieved by modulating walking speed according to the inclination in order to counteract the gravitational forces, either uphill (exertion effect) or downhill (braking effect). The contribution of vision to these speed modulations is not fully understood. Here we assessed gait speed effects by parametrically manipulating the discrepancy between virtual visual inclination and the actual surface inclination (aka visual incongruence). Fifteen healthy participants walked in a large-scale virtual reality (VR) system on a self-paced treadmill synchronized with projected visual scenes. During walking they were randomly exposed to varying degrees of physical-visual incongruence inclinations (e.g., treadmill leveled & visual scene uphill) in a wide range of inclinations (−15° to +15°). We observed an approximately linear relation between the relative change in gait speed and the anticipated gravitational forces associated with the virtual inclinations. Mean relative gait speed increase of ~7%, ~11%, and ~17% were measured for virtual inclinations of +5°, +10°, and +15°, respectively (anticipated decelerating forces were proportional to sin[5°], sin[10°], sin[15°]). The same pattern was seen for downhill virtual inclinations with relative gait speed modulations of ~-10%, ~-16%, and ~-24% for inclinations of −5°, −10°, and −15°, respectively (in anticipation of accelerating forces). Furthermore, we observed that the magnitude of speed modulation following virtual inclination at ±10° was associated with subjective visual verticality misperception. In conclusion, visual cues modulate gait speed when surface inclinations change proportional to the anticipated effect of the gravitational force associated the inclinations. Our results emphasize the contribution of vision to locomotion in a dynamic environment and may enhance personalized rehabilitation strategies for gait speed modulations in neurological patients with gait impairments.
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Affiliation(s)
- Amit Benady
- Center of Advanced Technologies in Rehabilitation, Sheba Medical Center, Ramat Gan, Israel.,School of Optometry and Vision Science, Bar Ilan University, Ramat Gan, Israel.,The Gonda Multidisciplinary Brain Research Center, Bar Ilan University, Ramat Gan, Israel
| | - Sean Zadik
- Center of Advanced Technologies in Rehabilitation, Sheba Medical Center, Ramat Gan, Israel
| | - Gabriel Zeilig
- Department of Neurological Rehabilitation, Sheba Medical Center, Ramat Gan, Israel.,Department of Physical and Rehabilitation Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,School of Health Professions, Ono Academic College, Kiryat Ono, Israel
| | - Sharon Gilaie-Dotan
- School of Optometry and Vision Science, Bar Ilan University, Ramat Gan, Israel.,The Gonda Multidisciplinary Brain Research Center, Bar Ilan University, Ramat Gan, Israel.,UCL Institute of Cognitive Neuroscience, London, United Kingdom
| | - Meir Plotnik
- Center of Advanced Technologies in Rehabilitation, Sheba Medical Center, Ramat Gan, Israel.,Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,The Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
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7
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Totilienė M, Uloza V, Lesauskaitė V, Damulevičienė G, Kregždytė R, Kaski D, Ulozienė I. Impaired Subjective Visual Vertical and Increased Visual Dependence in Older Adults With Falls. Front Aging Neurosci 2021; 13:667608. [PMID: 34177553 PMCID: PMC8232053 DOI: 10.3389/fnagi.2021.667608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 05/11/2021] [Indexed: 12/15/2022] Open
Abstract
Aging affects the vestibular system and may disturb the perception of verticality and lead to increased visual dependence (VD). Studies have identified that abnormal upright perception influences the risk of falling. The aim of our study was to evaluate subjective visual vertical (SVV) and VD using a mobile virtual reality-based system for SVV assessment (VIRVEST) in older adults with falls and evaluate its relationship with clinical balance assessment tools, dizziness, mental state, and depression level. This study included 37 adults >65 years who experienced falls and 40 non-faller age-matched controls. Three tests were performed using the VIRVEST system: a static SVV, dynamic SVV with clockwise and counter-clockwise background stimulus motion. VD was calculated as the mean of absolute values of the rod tilt from each trial of dynamic SVV minus the mean static SVV rod tilt. Older adults who experienced falls manifested significantly larger biases in static SVV (p = 0.012), dynamic SVV (p < 0.001), and VD (p = 0.014) than controls. The increase in static SVV (odds ratio = 1.365, p = 0.023), dynamic SVV (odds ratio = 1.623, p < 0.001) and VD (odds ratio = 1.460, p = 0.010) tilt by one degree significantly related to falls risk in the faller group. Fallers who had a high risk of falling according to the Tinetti test exhibited significantly higher tilts of dynamic SVV than those who had a low or medium risk (p = 0.037). In the faller group, the increase of the dynamic SVV tilt by one degree was significantly related to falls risk according to the Tinetti test (odds ratio = 1.356, p = 0.049). SVV errors, particularly with the dynamic SVV test (i.e., greater VD) were associated with an increased risk of falling in the faller group. The VIRVEST system may be applicable in clinical settings for SVV testing and predicting falls in older adults.
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Affiliation(s)
- Milda Totilienė
- Department of Otorhinolaryngology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Virgilijus Uloza
- Department of Otorhinolaryngology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Vita Lesauskaitė
- Department of Geriatrics, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Gytė Damulevičienė
- Department of Geriatrics, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Rima Kregždytė
- Department of Preventive Medicine, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Diego Kaski
- Department of Clinical and Movement Neurosciences, University College London, London, United Kingdom
| | - Ingrida Ulozienė
- Department of Otorhinolaryngology, Lithuanian University of Health Sciences, Kaunas, Lithuania
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8
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Wagner AR, Akinsola O, Chaudhari AMW, Bigelow KE, Merfeld DM. Measuring Vestibular Contributions to Age-Related Balance Impairment: A Review. Front Neurol 2021; 12:635305. [PMID: 33633678 PMCID: PMC7900546 DOI: 10.3389/fneur.2021.635305] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 01/18/2021] [Indexed: 12/16/2022] Open
Abstract
Aging is associated with progressive declines in both the vestibular and human balance systems. While vestibular lesions certainly contribute to imbalance, the specific contributions of age-related vestibular declines to age-related balance impairment is poorly understood. This gap in knowledge results from the absence of a standardized method for measuring age-related changes to the vestibular balance pathways. The purpose of this manuscript is to provide an overview of the existing body of literature as it pertains to the methods currently used to infer vestibular contributions to age-related imbalance.
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Affiliation(s)
- Andrew R. Wagner
- School of Health and Rehabilitation Science, The Ohio State University, Columbus, OH, United States
- Department of Otolaryngology—Head and Neck Surgery, The Ohio State University, Columbus, OH, United States
| | - Olaoluwa Akinsola
- Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH, United States
| | - Ajit M. W. Chaudhari
- School of Health and Rehabilitation Science, The Ohio State University, Columbus, OH, United States
- Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH, United States
| | - Kimberly E. Bigelow
- Department of Mechanical and Aerospace Engineering, University of Dayton, Dayton, OH, United States
| | - Daniel M. Merfeld
- School of Health and Rehabilitation Science, The Ohio State University, Columbus, OH, United States
- Department of Otolaryngology—Head and Neck Surgery, The Ohio State University, Columbus, OH, United States
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, United States
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9
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Lubetzky AV, Hujsak BD, Kelly JL, Fu G, Perlin K. Control Mechanisms of Static and Dynamic Balance in Adults With and Without Vestibular Dysfunction in Oculus Virtual Environments. PM R 2019; 10:1223-1236.e2. [PMID: 30503230 DOI: 10.1016/j.pmrj.2018.07.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 07/02/2018] [Accepted: 07/08/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND Deficits in sensory integration and fear of falling in complex environments contribute to decreased participation of adults with vestibular disorders. With recent advances in virtual reality technology, head-mounted displays are affordable and allow manipulation of the environment to test postural responses to visual changes. OBJECTIVES To develop an assessment of static and dynamic balance with the Oculus Rift and (1) to assess test-retest reliability of each scene in adults with and without vestibular hypofunction; (2) to describe changes in directional path and sample entropy in response to changes in visuals and surface and compare between groups; and (3) to evaluate the relation between balance performance and self-reported disability and balance confidence. DESIGN Test-retest, blocked-randomized experimental design. SETTING Research laboratory. PARTICIPANTS Twenty-five adults with vestibular hypofunction and 16 age- and sex-matched adults. METHODS Participants stood on the floor or stability trainers while wearing the Oculus Rift. For 3 moving "stars" scenes, they stood naturally. For a "park" scene, they were asked to avoid a virtual ball. The protocol was repeated 1-4 weeks later. OUTCOME Anteroposterior and mediolateral center-of-pressure directional path and sample entropy were derived from a force plate. RESULTS We observed good to excellent reliability in the 2 groups, with most intraclass correlations above 0.8 and only 2 at approximately 0.4. The vestibular group had higher directional path for the stars scenes and lower directional path for the park scene compared with controls, with large variability in the 2 groups. Sample entropy decreased with more challenging environments. In the vestibular group, less balance confidence strongly correlated with more sway for the stars scenes and less sway for the park scene. CONCLUSION Virtual reality paradigms can shed light on the control mechanism of static and dynamic postural control. Clinical utility and implementation of our portable Oculus Rift assessment should be further studied. LEVEL OF EVIDENCE II.
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Affiliation(s)
- Anat V Lubetzky
- New York University, Department of Physical Therapy, Steinhardt School of Culture Education and Human Development, 380 2nd Ave, New York, NY 10010(∗).
| | - Bryan D Hujsak
- Vestibular Rehabilitation, The Ear Institute, Hearing and Balance Center, The New York Eye and Ear Infirmary of Mount Sinai, New York, NY(†)
| | - Jennifer L Kelly
- Vestibular Rehabilitation, The Ear Institute, Hearing and Balance Center, The New York Eye and Ear Infirmary of Mount Sinai, New York, NY(‡)
| | - Gene Fu
- New York University, Department of Physical Therapy, Steinhardt School of Culture Education and Human Development, New York, NY(§)
| | - Ken Perlin
- New York University, Computer Science Department, Courant Institute of Mathematical Sciences, New York, NY(¶)
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10
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Gatica-Rojas V, Cartes-Velásquez R, Albornoz-Verdugo ME, Soto-Poblete A, Monteiro-Junior RS, Elgueta-Cancino E. Effects of a Nintendo Wii exercise program versus Tai Chi Chuan on standing balance in older adults: a preliminary study. J Phys Ther Sci 2019; 31:1-4. [PMID: 30774195 PMCID: PMC6348192 DOI: 10.1589/jpts.31.1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 09/12/2018] [Indexed: 12/02/2022] Open
Abstract
[Purpose] This study compared the effect of the Nintendo Wii balance board (NWBB) and Tai
Chi Chuan (TCC) on the standing balance (SB) of older adults. [Participants and Methods]
Twelve older adults (NWBB=7 and TCC=5) completed the intervention and two testing sessions
(pre-post). SB was assessed using posturographic measures with the center of pressure
(CoP) in five modes: quiet eyes open (QSB-EO) and eyes closed (QSB-EC), on sponge (SBS-EO
and SBS-EC), and with optokinetic field (SB-OF). [Results] Both interventions
significantly decrease the area of CoP sway (CoPSway) in QSB-EO and SB-OF. The
NWBB-group decreased CoPSway in SBS-EC and CoP velocity (Vmean) in
QSB-EO, QSB-EC, and SBS-EC. The TCC-group decreased the Vmean in SBS-EO and
conversely the Vmean in QSB-EC increased. [Conclusion] Sponge and optokinetic
field were the most unstable assessments. These findings reveal the potential benefits for
SB of both interventions, however the NWBB improved more variables in the postural control
of older adults.
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Affiliation(s)
- Valeska Gatica-Rojas
- Human Motor Control Laboratory, Department of Human Movement Sciences, Faculty of Health Sciences, Interdisciplinary Excellence Research Program on Healthy Aging (PIEI-ES), Universidad de Talca: Av. Lircay S/N, Talca, Chile
| | - Ricardo Cartes-Velásquez
- School of Dentistry, Universidad Andrés Bello, Chile.,Center of Research in Biomedical Science, Universidad Autónoma de Chile, Chile
| | | | | | | | - Edith Elgueta-Cancino
- Centre of Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, The University of Queensland, Australia
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11
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Aftanas LI, Bazanova OM, Novozhilova NV. Posture-Motor and Posture-Ideomotor Dual-Tasking: A Putative Marker of Psychomotor Retardation and Depressive Rumination in Patients With Major Depressive Disorder. Front Hum Neurosci 2018; 12:108. [PMID: 29628881 PMCID: PMC5876932 DOI: 10.3389/fnhum.2018.00108] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 03/06/2018] [Indexed: 12/18/2022] Open
Abstract
Background: Recent studies have demonstrated that the assessment of postural performance may be a potentially reliable and objective marker of the psychomotor retardation (PMR) in the major depressive disorder (MDD). One of the important facets of MDD-related PMR is reflected in disrupted central mechanisms of psychomotor control, heavily influenced by compelling maladaptive depressive rumination. In view of this we designed a research paradigm that included sequential execution of simple single-posture task followed by more challenging divided attention posture tasks, involving concurring motor and ideomotor workloads. Another difficulty dimension assumed executing of all the tasks with eyes open (EO) (easy) and closed (EC) (difficult) conditions. We aimed at investigating the interplay between the severity of MDD, depressive rumination, and efficiency of postural performance. Methods: Compared with 24 age- and body mass index-matched healthy controls (HCs), 26 patients with MDD sequentially executed three experimental tasks: (1) single-posture task of maintaining a quiet stance (ST), (2) actual posture-motor dual task (AMT); and (3) mental/imaginary posture-motor dual task (MMT). All the tasks were performed in the EO and the EC conditions. The primary dependent variable was the amount of kinetic energy (E) expended for the center of pressure deviations (CoPDs), whereas the absolute divided attention cost index showed energy cost to the dual-tasking vs. the single-posture task according to the formula: ΔE = (EDual-task - ESingle-task). Results: The signs of PMR in the MDD group were objectively indexed by deficient posture control in the EC condition along with overall slowness of fine motor and ideomotor activity. Another important and probably more challenging feature of the findings was that the posture deficit manifested in the ST condition was substantially and significantly attenuated in the MMT and AMT performance dual-tasking activity. A multiple linear regression analysis evidenced further that the dual-tasking energy cost (i.e., ΔE) significantly predicted clinical scores of severity of MDD and depressive rumination. Conclusion: The findings allow to suggest that execution of concurrent actual or imaginary fine motor task with closed visual input deallocates attentional resources from compelling maladaptive depressive rumination thereby attenuating severity of absolute dual-tasking energy costs for balance maintenance in patients with MDD. Significance: Quantitative assessment of PMR through measures of the postural performance in dual-tasking may be useful to capture the negative impact of past depressive episodes, optimize the personalized treatment selection, and improve the understanding of the pathophysiological mechanisms underlying MDD.
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Affiliation(s)
- Lyubomir I Aftanas
- Laboratory of Affective, Cognitive and Translational Neuroscience, Institute of Physiology and Basic Medicine, Novosibirsk, Russia.,Department of Neuroscience, Novosibirsk State University, Novosibirsk, Russia
| | - Olga M Bazanova
- Laboratory of Affective, Cognitive and Translational Neuroscience, Institute of Physiology and Basic Medicine, Novosibirsk, Russia
| | - Nataliya V Novozhilova
- Laboratory of Affective, Cognitive and Translational Neuroscience, Institute of Physiology and Basic Medicine, Novosibirsk, Russia
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