Vestibular Labyrinth Contributions to Human Whole-Body Motion Discrimination

Valko, Yulia; Lewis, Richard; Priesol, Adrian J.; Merfeld, Daniel M.

doi:10.1523/jneurosci.2157-12.2012

Cited by 139 publications

(251 citation statements)

References 49 publications

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“…Variations in threshold across frequencies indicate different filtering, i.e., that responses to different cues depend on current and past inputs being weighted differently. As with many other motion threshold studies (Benson et al 1986(Benson et al , 1989Butler et al 2010;Crane 2012a;Grabherr et al 2008;Haburcakova et al 2012;Kolev et al 1996;Roditi andCrane 2012a, 2012b;Soyka et al 2011;Valko et al 2012;Zupan and Merfeld 2008), motion stimuli were single cycles of sinusoidal acceleration with frequency f. Figure 2 shows the corresponding cosine bell velocity and sigmoidal displacement and demonstrates how the amplitudes of the three co-vary for a given frequency. While not a primary objective of this study, when compared across frequencies, this approach is sometimes used to separate the contributions of position, velocity, acceleration and higher-derivate cues.…”

Section: Methodsmentioning

confidence: 77%

“…General methods mimicked recent studies (Grabherr et al 2008;Valko et al 2012). Data collection was divided into two studies.…”

Section: Methodsmentioning

confidence: 99%

“…Vestibular-only trials were performed in the dark in a light-tight room. Relative success of these techniques to reduce task-relevant cues is demonstrated by elevated thresholds measured in patients suffering total vestibular loss (Valko et al 2012).…”

Section: Methodsmentioning

confidence: 99%

“…Thresholds have helped understand the relative precision of sensory modalities (e.g., Ernst and Banks 2002;Gu et al 2008), and finding frequency responses generally enhances our understanding of dynamic neuroprocessing (e.g., Angelaki and Yakusheva 2009;Cullen 2011;Merfeld et al 2005a;Valko et al 2012). To our knowledge, visual and vestibular thresholds have not previously been compared across frequencies with the same motion axis, methods and subjects.…”

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confidence: 99%

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Visual and vestibular perceptual thresholds each demonstrate better precision at specific frequencies and also exhibit optimal integration

Karmali

Lim

Merfeld

2014

Journal of Neurophysiology

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Karmali F, Lim K, Merfeld DM. Visual and vestibular perceptual thresholds each demonstrate better precision at specific frequencies and also exhibit optimal integration. J Neurophysiol 111: 2393-2403, 2014. First published December 26, 2013 doi:10.1152/jn.00332.2013.-Prior studies show that visual motion perception is more precise than vestibular motion perception, but it is unclear whether this is universal or the result of specific experimental conditions. We compared visual and vestibular motion precision over a broad range of temporal frequencies by measuring thresholds for vestibular (subject motion in the dark), visual (visual scene motion) or visual-vestibular (subject motion in the light) stimuli. Specifically, thresholds were measured for motion frequencies spanning a two-decade physiological range (0.05-5 Hz) using single-cycle sinusoidal acceleration roll tilt trajectories (i.e., distinguishing left-side down from right-side down). We found that, while visual and vestibular thresholds were broadly similar between 0.05 and 5.0 Hz, each cue is significantly more precise than the other at certain frequencies. Specifically, we found that 1) visual and vestibular thresholds were indistinguishable at 0.05 Hz and 2 Hz (i.e., similarly precise); 2) visual thresholds were lower (i.e., vision more precise) than vestibular thresholds between 0.1 Hz and 1 Hz; and 3) visual thresholds were higher (i.e., vision less precise) than vestibular thresholds above 2 Hz. This shows that vestibular perception can be more precise than visual perception at physiologically relevant frequencies. We also found that sensory integration of visual and vestibular information is consistent with static Bayesian optimal integration of visual-vestibular cues. In contrast with most prior work that degraded or altered sensory cues, we demonstrated static optimal integration using natural cues.

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Section: Methodsmentioning

confidence: 77%

“…General methods mimicked recent studies (Grabherr et al 2008;Valko et al 2012). Data collection was divided into two studies.…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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Visual and vestibular perceptual thresholds each demonstrate better precision at specific frequencies and also exhibit optimal integration

Karmali

Lim

Merfeld

2014

Journal of Neurophysiology

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“…Motion stimuli were delivered using a 6-degree-offreedom motion platform (Moog, East Aurora, NY, USA, model 6DOF2000E) similar to that used in other laboratories for human and monkey motion perception studies (Grabherr et al 2008;Fetsch et al 2009;MacNeilage et al 2010;Valko et al 2012) and previously used for translation ) and roll aftereffect studies in the current laboratory. Subjects were seated upright in a padded racing seat (Corbeau, Sandy, UT, USA, model FX-1) mounted on the platform which included high lumbar and seat bolsters.…”

Section: Equipmentmentioning

confidence: 99%

Human Yaw Rotation Aftereffects with Brief Duration Rotations Are Inconsistent with Velocity Storage

Coniglio

Crane

2014

JARO

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In many sensory systems, perception of stimuli is influenced by previous stimulus exposure such that subsequent stimuli may be perceived as more neutral. This phenomenon is known as an aftereffect and has been studied for vision, audition, and some vestibular stimuli including roll and translation. Previous data on yaw rotation perception has focused on lowfrequency stimuli on the order of a minute which may not be directly applicable to frequencies during ambulation. The aim of the current study is to look at the influence of yaw rotation on subsequent perception near 1 Hz, the predominant frequency of yaw rotation during human ambulation. Humans were rotated with 12°whole body adapting stimulus over 1 or 1.5 s. After an interstimulus interval (ISI) of 0.5, 1.0, 1.5, or 3 s, a test stimulus the same duration as the adapting stimulus was presented, and subjects pushed a button to identify the direction of the test stimulus as right or left. The direction and magnitude of the test stimulus was adjusted based on prior responses to find the stimulus at which no rotation was perceived. Experiments were conducted both in darkness and with a visual fixation point. The presence of a fixation point did not influence the aftereffect which was largest at 0.5 s with an average size of 0.78±0.18°/s (mean±SE). The aftereffect diminished with a time constant of~1 s. Thresholds were elevated after the adapting stimulus and also decreased with a time constant of~1 s. These findings demonstrate that short adapting stimuli can induce significant aftereffects in yaw rotation perception and that these aftereffects are independent from the previously described velocity storage.

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Severity‐Dependent Effects of Parkinson's Disease on Perception of Visual and Vestibular Heading

et al. 2020

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Objectives Parkinson's disease (PD) commonly affects visuospatial navigation causing postural instability and falls. Our overarching aim was to examine the visual and vestibular systems governing visuospatial navigation in PD. We hypothesize that PD affects vestibular and visual motion perception but to a different extent. The effects of PD on motion perception are dependent on the severity of the disease. Methods The two‐alternative‐forced‐choice task objectively measured the motion perception during two experiments. One experiment examined the vestibular motion perception with en bloc movement of the platform. The second experiment tested the visual motion perception using an immersive virtual reality goggle. Results We found that accuracy, threshold, and precision of vestibular perception were more impaired in advanced‐PD patients compared to those with a mild form of the disease. The parameters also correlated with the disease duration, overall axial motor impairment causing postural instability and falls, and subjective rating of the balance function. Such changes were present but less severe in visual motion perception. Conclusion We conclude that PD affects motion perception in the visual and vestibular domains in a severity‐dependent manner. The impact of the disease in the vestibular domain is more severe compared to the visual domain. © 2020 International Parkinson and Movement Disorder Society

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Vestibular Labyrinth Contributions to Human Whole-Body Motion Discrimination

Cited by 139 publications

References 49 publications

Visual and vestibular perceptual thresholds each demonstrate better precision at specific frequencies and also exhibit optimal integration

Visual and vestibular perceptual thresholds each demonstrate better precision at specific frequencies and also exhibit optimal integration

Human Yaw Rotation Aftereffects with Brief Duration Rotations Are Inconsistent with Velocity Storage

Severity‐Dependent Effects of Parkinson's Disease on Perception of Visual and Vestibular Heading

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