Measuring threshold and latency of motion perception on a swinging bed.

<h4>Introduction</h4>Our objective was to develop and to evaluate a system to measure latency and threshold of pendular motion perception based on a swinging bed.<h4>Materials and methods</h4>This prospective study included 30 healthy adults (age: 32 ± 12 years). All subjects...

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Autores principales:	Maxime Guyon, Cyrielle Chea, Davy Laroche, Isabelle Fournel, Audrey Baudet, Michel Toupet, Alexis Bozorg Grayeli
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/76d3eed4e28a44268df4e8bb2e509bc1
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spelling	oai:doaj.org-article:76d3eed4e28a44268df4e8bb2e509bc12021-12-02T20:05:09ZMeasuring threshold and latency of motion perception on a swinging bed.1932-620310.1371/journal.pone.0252914https://doaj.org/article/76d3eed4e28a44268df4e8bb2e509bc12021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0252914https://doaj.org/toc/1932-6203<h4>Introduction</h4>Our objective was to develop and to evaluate a system to measure latency and threshold of pendular motion perception based on a swinging bed.<h4>Materials and methods</h4>This prospective study included 30 healthy adults (age: 32 ± 12 years). All subjects were tested twice with a 10 min. interval. A second trial was conducted 2 to 15 days after. A rehabilitation swinging bed was connected to an electronic device emitting a beep at the beginning of each oscillation phase with an adjustable time lag. Subjects were blindfolded and auditory cues other than the beep were minimized. The acceleration threshold was measured by letting the bed oscillate freely until a natural break and asking the patient when he did not perceive any motion. The perception latency was determined by asking the patient to indicate whether the beep and the peak of each oscillation were synchronous. The time lag between sound and peak of the head position was swept from -750 to +750 ms by 50 ms increments.<h4>Results</h4>The mean acceleration threshold was 9.2±4.60 cm/s2. The range width of the synchronous perception interval was estimated as 535±190 ms. The point of subjective synchronicity defined as the center of this interval was -195±106 ms (n = 30). The test-retest evaluation in the same trial showed an acceptable reproducibility for the acceleration threshold and good to excellent for all parameters related to sound-movement latency.<h4>Conclusion</h4>Swinging bed combined to sound stimulation can provide reproducible information on movement perception in a simple and non-invasive manner with highly reproducible results.Maxime GuyonCyrielle CheaDavy LarocheIsabelle FournelAudrey BaudetMichel ToupetAlexis Bozorg GrayeliPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 7, p e0252914 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Maxime Guyon Cyrielle Chea Davy Laroche Isabelle Fournel Audrey Baudet Michel Toupet Alexis Bozorg Grayeli Measuring threshold and latency of motion perception on a swinging bed.
description	<h4>Introduction</h4>Our objective was to develop and to evaluate a system to measure latency and threshold of pendular motion perception based on a swinging bed.<h4>Materials and methods</h4>This prospective study included 30 healthy adults (age: 32 ± 12 years). All subjects were tested twice with a 10 min. interval. A second trial was conducted 2 to 15 days after. A rehabilitation swinging bed was connected to an electronic device emitting a beep at the beginning of each oscillation phase with an adjustable time lag. Subjects were blindfolded and auditory cues other than the beep were minimized. The acceleration threshold was measured by letting the bed oscillate freely until a natural break and asking the patient when he did not perceive any motion. The perception latency was determined by asking the patient to indicate whether the beep and the peak of each oscillation were synchronous. The time lag between sound and peak of the head position was swept from -750 to +750 ms by 50 ms increments.<h4>Results</h4>The mean acceleration threshold was 9.2±4.60 cm/s2. The range width of the synchronous perception interval was estimated as 535±190 ms. The point of subjective synchronicity defined as the center of this interval was -195±106 ms (n = 30). The test-retest evaluation in the same trial showed an acceptable reproducibility for the acceleration threshold and good to excellent for all parameters related to sound-movement latency.<h4>Conclusion</h4>Swinging bed combined to sound stimulation can provide reproducible information on movement perception in a simple and non-invasive manner with highly reproducible results.
format	article
author	Maxime Guyon Cyrielle Chea Davy Laroche Isabelle Fournel Audrey Baudet Michel Toupet Alexis Bozorg Grayeli
author_facet	Maxime Guyon Cyrielle Chea Davy Laroche Isabelle Fournel Audrey Baudet Michel Toupet Alexis Bozorg Grayeli
author_sort	Maxime Guyon
title	Measuring threshold and latency of motion perception on a swinging bed.
title_short	Measuring threshold and latency of motion perception on a swinging bed.
title_full	Measuring threshold and latency of motion perception on a swinging bed.
title_fullStr	Measuring threshold and latency of motion perception on a swinging bed.
title_full_unstemmed	Measuring threshold and latency of motion perception on a swinging bed.
title_sort	measuring threshold and latency of motion perception on a swinging bed.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/76d3eed4e28a44268df4e8bb2e509bc1
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Measuring threshold and latency of motion perception on a swinging bed.

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