Description
The ability to move and maintain posture in space is critically dependent on motion and orientation information provided by the vestibular system. When this system delivers noisy or erred information it can, in some cases, be disregarded through habituation. Here we investigate whether multiple mechanisms of habituation act to attenuate vestibulomotor gain due to noise added using random-waveform electric vestibular stimulation (EVS). Forty-five participants completed one of three conditions. Each condition consisted of two four-minute standing periods with stimulation surrounding a one-hour period of either walking with stimulation, walking without stimulation, or sitting quietly. Participants stood and walked on an instrumented treadmill to record horizontal forces at the feet. We quantified habituation by comparing vestibular stimulus-horizontal force gain between conditions. First stimulus exposure caused an 18% decrease in gain during the first forty seconds of standing. Habituation recommenced only when subjects walked with stimulation; resulting in a 38% decrease in gain over sixty-minutes that did not transfer to standing following walking. The disparity in habituation dynamics and absent carry over between standing and walking suggests that at least two habituative mechanisms, one associated with first exposure to the stimulus and another that is task specific, act to attenuate vestibulomotor gain.
Author ORCID Identifier
Chris Dakin https://orcid.org/0000-0002-6781-0281
OCLC
1193988978
Document Type
Dataset
DCMI Type
Dataset
File Format
.txt, .zip
Viewing Instructions
Files will need to be unzipped. Files can be viewed using any programming language, however Matlab was originally used.
Publication Date
9-3-2020
Publisher
Utah State University
Methodology
Methodology is described in the associated publication.
Language
eng
Code Lists
See the README.txt file.
License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Dakin, C. (2020). Data for: Vestibular attenuation to random-waveform galvanic vestibular stimulation during standing and treadmill walking. Utah State University. https://doi.org/10.26078/BEQJ-YE69
Checksum
c54d9091149941837b91331540223ba4
Additional Files
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WT_FP_files.zip (258766 kB)
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WT_1-5_TM_files.zip (949325 kB)
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WT_6-10_TM_files.zip (947261 kB)
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WT_11-15_TM_files.zip (952735 kB)
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Comments
There are a total of 180 data files, organized and zipped into 6 .zip files. See README .txt file and publication for more information.