2013
DOI: 10.1523/jneurosci.2054-12.2013
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Handedness-Related Cortical Modulation of the Vestibular-Ocular Reflex

Abstract: Multisensory visuo-vestibular cortical areas are important for spatial orientation and facilitate the control of the brainstem-mediated vestibular ocular reflex (VOR). Despite reports of visual input and cognitive tasks modulating the VOR through cortical control, it is unknown whether higher-order visual stimuli such as bistable perception and attention tasks involving visual imagery have an effect on the VOR. This is a possibility since such stimuli recruit cortical areas overlapping with those engaged durin… Show more

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Cited by 47 publications
(49 citation statements)
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“…Intriguingly, the direction of the modulation was determined by the subject's handedness, strongly implicating the role of higher-order mechanisms for the modulation. 24 As shown in Figure 6, in right-handed subjects the VOR was supressed following rightward rotations and conversely following leftward rotations in left-handed subjects.…”
Section: Cortical Processing and The Vormentioning
confidence: 82%
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“…Intriguingly, the direction of the modulation was determined by the subject's handedness, strongly implicating the role of higher-order mechanisms for the modulation. 24 As shown in Figure 6, in right-handed subjects the VOR was supressed following rightward rotations and conversely following leftward rotations in left-handed subjects.…”
Section: Cortical Processing and The Vormentioning
confidence: 82%
“…21 Furthermore, based on the premise that overlapping neural networks subserve spatial attention and vestibular processing, we developed a novel paradigm in normal subjects to see if this induced modulation of the VOR. 24 During velocity step rotations, subjects viewed bi-stable percepts (ie, binocular rivalry or motion induced blindness), or performed complex attention tasks. Upon stopping, the VOR was measured in darkness.…”
Section: Cortical Processing and The Vormentioning
confidence: 99%
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“…We have chosen to use a step rotation at 90°/s to maintain consistency with our previous studies [20,31] and others of the velocity storage mechanism [32]. One measure of the velocity storage system is the vestibular velocity storage mechanism.…”
Section: Limitationsmentioning
confidence: 99%
“…One measure of the velocity storage system is the vestibular velocity storage mechanism. We have chosen this measure because the time constant can reflect vestibular impairment by disease [20,33], intervention [31] and drug effects [21,[34][35][36]]. However, it should be pointed out that the time constant can habituate which lends itself to poor repeatability.…”
Section: Limitationsmentioning
confidence: 99%