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Post-saccadic Eye Movement Indices Under Cognitive Load: A Path Analysis to Determine Visual Performance
PURPOSE: The evidence on the linear relationship between cognitive load, saccade, fixation, and task performance was uncertain. We tested pathway models for degraded task performance resulting from changes in saccadic and post-saccadic fixation under cognitive load. METHODS: Participants' (n =...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
PUBLISHED BY KNOWLEDGE E
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9493421/ https://www.ncbi.nlm.nih.gov/pubmed/36160105 http://dx.doi.org/10.18502/jovr.v17i3.11578 |
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author | Salehi Fadardi, Marzieh Salehi Fadardi, Javad Mahjoob, Monireh Doosti, Hassan |
author_facet | Salehi Fadardi, Marzieh Salehi Fadardi, Javad Mahjoob, Monireh Doosti, Hassan |
author_sort | Salehi Fadardi, Marzieh |
collection | PubMed |
description | PURPOSE: The evidence on the linear relationship between cognitive load, saccade, fixation, and task performance was uncertain. We tested pathway models for degraded task performance resulting from changes in saccadic and post-saccadic fixation under cognitive load. METHODS: Participants' (n = 38) eye movements were recorded using a post-saccadic discrimination task with and without arithmetic operations to impose cognitive load, validated through recording heart rate variability and subjective measurement. RESULTS: Results showed that cognitive load led to longer latencies of saccade and fixation; more inaccurate responses and fewer secondary saccades (P [Formula: see text] 0.001). Longer saccade latencies influenced task performance indirectly via increases in fixation latency, therefore, longer reaction times and higher response errors were observed due to limited fixation duration on desired target. CONCLUSION: We suggest that latency and duration of fixation indicate efficiency of information processing and can predict the speed and accuracy of task performance under cognitive load. |
format | Online Article Text |
id | pubmed-9493421 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | PUBLISHED BY KNOWLEDGE E |
record_format | MEDLINE/PubMed |
spelling | pubmed-94934212022-09-23 Post-saccadic Eye Movement Indices Under Cognitive Load: A Path Analysis to Determine Visual Performance Salehi Fadardi, Marzieh Salehi Fadardi, Javad Mahjoob, Monireh Doosti, Hassan J Ophthalmic Vis Res Original Article PURPOSE: The evidence on the linear relationship between cognitive load, saccade, fixation, and task performance was uncertain. We tested pathway models for degraded task performance resulting from changes in saccadic and post-saccadic fixation under cognitive load. METHODS: Participants' (n = 38) eye movements were recorded using a post-saccadic discrimination task with and without arithmetic operations to impose cognitive load, validated through recording heart rate variability and subjective measurement. RESULTS: Results showed that cognitive load led to longer latencies of saccade and fixation; more inaccurate responses and fewer secondary saccades (P [Formula: see text] 0.001). Longer saccade latencies influenced task performance indirectly via increases in fixation latency, therefore, longer reaction times and higher response errors were observed due to limited fixation duration on desired target. CONCLUSION: We suggest that latency and duration of fixation indicate efficiency of information processing and can predict the speed and accuracy of task performance under cognitive load. PUBLISHED BY KNOWLEDGE E 2022-08-15 /pmc/articles/PMC9493421/ /pubmed/36160105 http://dx.doi.org/10.18502/jovr.v17i3.11578 Text en Copyright © 2022 Fadardi et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Salehi Fadardi, Marzieh Salehi Fadardi, Javad Mahjoob, Monireh Doosti, Hassan Post-saccadic Eye Movement Indices Under Cognitive Load: A Path Analysis to Determine Visual Performance |
title | Post-saccadic Eye Movement Indices Under Cognitive Load: A Path Analysis to Determine Visual Performance |
title_full | Post-saccadic Eye Movement Indices Under Cognitive Load: A Path Analysis to Determine Visual Performance |
title_fullStr | Post-saccadic Eye Movement Indices Under Cognitive Load: A Path Analysis to Determine Visual Performance |
title_full_unstemmed | Post-saccadic Eye Movement Indices Under Cognitive Load: A Path Analysis to Determine Visual Performance |
title_short | Post-saccadic Eye Movement Indices Under Cognitive Load: A Path Analysis to Determine Visual Performance |
title_sort | post-saccadic eye movement indices under cognitive load: a path analysis to determine visual performance |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9493421/ https://www.ncbi.nlm.nih.gov/pubmed/36160105 http://dx.doi.org/10.18502/jovr.v17i3.11578 |
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