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The saccade main sequence revised: A fast and repeatable tool for oculomotor analysis

Saccades are rapid ballistic eye movements that humans make to direct the fovea to an object of interest. Their kinematics is well defined, showing regular relationships between amplitude, duration, and velocity: the saccadic ’main sequence’. Deviations of eye movements from the main sequence can be...

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Detalles Bibliográficos
Autores principales: Gibaldi, Agostino, Sabatini, Silvio P.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7880984/
https://www.ncbi.nlm.nih.gov/pubmed/32643061
http://dx.doi.org/10.3758/s13428-020-01388-2
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author Gibaldi, Agostino
Sabatini, Silvio P.
author_facet Gibaldi, Agostino
Sabatini, Silvio P.
author_sort Gibaldi, Agostino
collection PubMed
description Saccades are rapid ballistic eye movements that humans make to direct the fovea to an object of interest. Their kinematics is well defined, showing regular relationships between amplitude, duration, and velocity: the saccadic ’main sequence’. Deviations of eye movements from the main sequence can be used as markers of specific neurological disorders. Despite its significance, there is no general methodological consensus for reliable and repeatable measurements of the main sequence. In this work, we propose a novel approach for standard indicators of oculomotor performance. The obtained measurements are characterized by high repeatability, allowing for fine assessments of inter- and intra-subject variability, and inter-ocular differences. The designed experimental procedure is natural and non-fatiguing, thus it is well suited for fragile or non-collaborative subjects like neurological patients and infants. The method has been released as a software toolbox for public use. This framework lays the foundation for a normative dataset of healthy oculomotor performance for the assessment of oculomotor dysfunctions.
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spelling pubmed-78809842021-02-18 The saccade main sequence revised: A fast and repeatable tool for oculomotor analysis Gibaldi, Agostino Sabatini, Silvio P. Behav Res Methods Article Saccades are rapid ballistic eye movements that humans make to direct the fovea to an object of interest. Their kinematics is well defined, showing regular relationships between amplitude, duration, and velocity: the saccadic ’main sequence’. Deviations of eye movements from the main sequence can be used as markers of specific neurological disorders. Despite its significance, there is no general methodological consensus for reliable and repeatable measurements of the main sequence. In this work, we propose a novel approach for standard indicators of oculomotor performance. The obtained measurements are characterized by high repeatability, allowing for fine assessments of inter- and intra-subject variability, and inter-ocular differences. The designed experimental procedure is natural and non-fatiguing, thus it is well suited for fragile or non-collaborative subjects like neurological patients and infants. The method has been released as a software toolbox for public use. This framework lays the foundation for a normative dataset of healthy oculomotor performance for the assessment of oculomotor dysfunctions. Springer US 2020-07-08 2021 /pmc/articles/PMC7880984/ /pubmed/32643061 http://dx.doi.org/10.3758/s13428-020-01388-2 Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Gibaldi, Agostino
Sabatini, Silvio P.
The saccade main sequence revised: A fast and repeatable tool for oculomotor analysis
title The saccade main sequence revised: A fast and repeatable tool for oculomotor analysis
title_full The saccade main sequence revised: A fast and repeatable tool for oculomotor analysis
title_fullStr The saccade main sequence revised: A fast and repeatable tool for oculomotor analysis
title_full_unstemmed The saccade main sequence revised: A fast and repeatable tool for oculomotor analysis
title_short The saccade main sequence revised: A fast and repeatable tool for oculomotor analysis
title_sort saccade main sequence revised: a fast and repeatable tool for oculomotor analysis
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7880984/
https://www.ncbi.nlm.nih.gov/pubmed/32643061
http://dx.doi.org/10.3758/s13428-020-01388-2
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