Suprathreshold asymmetries in human motion perception.

Experimental Brain Research
Rachel E Roditi, Benjamin T Crane

Abstract

Detection of asymmetries has been a mainstay of using vestibular reflexes to assess semicircular canal function. However, there has been relatively little work on how vestibular stimuli are perceived. Suprathreshold vestibular perception was measured in 13 normal healthy controls by having them compare the relative sizes of two yaw (vertical-axis rotation) or sway (right-left translation) stimuli. Both stimuli were 1.5 s in duration with a staircase used to adjust the relative size of the stimuli to find a pair of stimuli perceived as equal. Motion stimuli were delivered in darkness using a hexapod motion platform, and visual stimuli simulating motion were presented on a screen in the absence of platform motion. Both same direction (SD) and opposite direction (OD) stimuli were delivered in separate runs. After a two-interval stimulus, subjects reported which movement they perceived as larger. Cumulative distribution functions were fit to the responses so that the relative magnitudes of the two stimuli perceived as equal could be determined. For OD trial blocks, a directional asymmetry index was calculated to compare the relative size of perceived rightward and leftward motion. For all trial blocks, a temporal asymmetry index (T...Continue Reading

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Citations

Sep 5, 2012·Experimental Brain Research·Benjamin T Crane
Jan 11, 2014·Journal of the Association for Research in Otolaryngology : JARO·Andrew J Coniglio, Benjamin T Crane
Jan 28, 2014·Experimental Brain Research·Matthias HartmannFred W Mast
Aug 28, 2014·Experimental Brain Research·Benjamin T Crane
Feb 9, 2016·Neuroscience Letters·Simon JetzschkeNorbert Boeddeker
Feb 14, 2017·PloS One·Mark Andrew Miller, Benjamin Thomas Crane
Oct 30, 2016·Perception·Robert RamkhalawansinghJennifer L Campos
Jun 16, 2017·Journal of Neurophysiology·Benjamin T Crane
Jun 24, 2016·Journal of Neurophysiology·Benjamin T Crane
Nov 1, 2018·Journal of Neurophysiology·Marissa J RosenbergFaisal Karmali
Oct 16, 2015·Journal of Neurophysiology·Daniel M MerfeldFaisal Karmali
Jan 16, 2020·The Cerebellum·Sinem Balta BeylergilAasef G Shaikh
Apr 26, 2017·Journal of the Association for Research in Otolaryngology : JARO·Ana Diaz-ArtilesFaisal Karmali
Jun 5, 2021·Neuroscience·Ana Diaz-Artiles, Faisal Karmali

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