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Eye movement characteristics reflected fatigue development in both young and elderly individuals
Fatigue can develop during prolonged computer work, particularly in elderly individuals. This study investigated eye movement characteristics in relation to fatigue development. Twenty young and 18 elderly healthy adults were recruited to perform a prolonged functional computer task while their eye...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6120880/ https://www.ncbi.nlm.nih.gov/pubmed/30177693 http://dx.doi.org/10.1038/s41598-018-31577-1 |
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author | Zargari Marandi, Ramtin Madeleine, Pascal Omland, Øyvind Vuillerme, Nicolas Samani, Afshin |
author_facet | Zargari Marandi, Ramtin Madeleine, Pascal Omland, Øyvind Vuillerme, Nicolas Samani, Afshin |
author_sort | Zargari Marandi, Ramtin |
collection | PubMed |
description | Fatigue can develop during prolonged computer work, particularly in elderly individuals. This study investigated eye movement characteristics in relation to fatigue development. Twenty young and 18 elderly healthy adults were recruited to perform a prolonged functional computer task while their eye movements were recorded. The task lasted 40 minutes involving 240 cycles divided into 12 segments. Each cycle consisted of a sequence involving memorization of a pattern, a washout period, and replication of the pattern using a computer mouse. The participants rated their perceived fatigue after each segment. The mean values of blink duration (BD) and frequency (BF), saccade duration (SCD) and peak velocity (SPV), pupil dilation range (PDR), and fixation duration (FD) along with the task performance based on clicking speed and accuracy, were computed for each task segment. An increased subjective evaluation of fatigue suggested the development of fatigue. BD, BF, and PDR increased whereas SPV and SCD decreased over time in the young and elderly groups. Longer FD, shorter SCD, and lower task performance were observed in the elderly compared with the young group. The present findings provide a viable approach to develop a computational model based on oculometrics to track fatigue development during computer work. |
format | Online Article Text |
id | pubmed-6120880 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-61208802018-09-06 Eye movement characteristics reflected fatigue development in both young and elderly individuals Zargari Marandi, Ramtin Madeleine, Pascal Omland, Øyvind Vuillerme, Nicolas Samani, Afshin Sci Rep Article Fatigue can develop during prolonged computer work, particularly in elderly individuals. This study investigated eye movement characteristics in relation to fatigue development. Twenty young and 18 elderly healthy adults were recruited to perform a prolonged functional computer task while their eye movements were recorded. The task lasted 40 minutes involving 240 cycles divided into 12 segments. Each cycle consisted of a sequence involving memorization of a pattern, a washout period, and replication of the pattern using a computer mouse. The participants rated their perceived fatigue after each segment. The mean values of blink duration (BD) and frequency (BF), saccade duration (SCD) and peak velocity (SPV), pupil dilation range (PDR), and fixation duration (FD) along with the task performance based on clicking speed and accuracy, were computed for each task segment. An increased subjective evaluation of fatigue suggested the development of fatigue. BD, BF, and PDR increased whereas SPV and SCD decreased over time in the young and elderly groups. Longer FD, shorter SCD, and lower task performance were observed in the elderly compared with the young group. The present findings provide a viable approach to develop a computational model based on oculometrics to track fatigue development during computer work. Nature Publishing Group UK 2018-09-03 /pmc/articles/PMC6120880/ /pubmed/30177693 http://dx.doi.org/10.1038/s41598-018-31577-1 Text en © The Author(s) 2018 Open Access This 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Zargari Marandi, Ramtin Madeleine, Pascal Omland, Øyvind Vuillerme, Nicolas Samani, Afshin Eye movement characteristics reflected fatigue development in both young and elderly individuals |
title | Eye movement characteristics reflected fatigue development in both young and elderly individuals |
title_full | Eye movement characteristics reflected fatigue development in both young and elderly individuals |
title_fullStr | Eye movement characteristics reflected fatigue development in both young and elderly individuals |
title_full_unstemmed | Eye movement characteristics reflected fatigue development in both young and elderly individuals |
title_short | Eye movement characteristics reflected fatigue development in both young and elderly individuals |
title_sort | eye movement characteristics reflected fatigue development in both young and elderly individuals |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6120880/ https://www.ncbi.nlm.nih.gov/pubmed/30177693 http://dx.doi.org/10.1038/s41598-018-31577-1 |
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