Cargando…
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...
Autores principales: | , |
---|---|
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 |
_version_ | 1783650783143657472 |
---|---|
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. |
format | Online Article Text |
id | pubmed-7880984 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT gibaldiagostino thesaccademainsequencerevisedafastandrepeatabletoolforoculomotoranalysis AT sabatinisilviop thesaccademainsequencerevisedafastandrepeatabletoolforoculomotoranalysis AT gibaldiagostino saccademainsequencerevisedafastandrepeatabletoolforoculomotoranalysis AT sabatinisilviop saccademainsequencerevisedafastandrepeatabletoolforoculomotoranalysis |