Post-saccadic Eye Movement Indices Under Cognitive Load: A Path Analysis to Determine Visual Performance
Abstract 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�...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Knowledge E
2022-08-01
|
| Series: | Journal of Ophthalmic & Vision Research |
| Subjects: | |
| Online Access: | https://doi.org/10.18502/jovr.v17i3.11578 |
| _version_ | 1797991411111428096 |
|---|---|
| author | Marzieh Salehi Fadardi Javad Salehi Fadardi Monireh Mahjoob Hassan Doosti |
| author_facet | Marzieh Salehi Fadardi Javad Salehi Fadardi Monireh Mahjoob Hassan Doosti |
| author_sort | Marzieh Salehi Fadardi |
| collection | DOAJ |
| description | Abstract 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 < 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. |
| first_indexed | 2024-04-11T08:51:46Z |
| format | Article |
| id | doaj.art-4af20742e9ed4de29520df1b3affd2aa |
| institution | Directory Open Access Journal |
| issn | 2008-2010 2008-322X |
| language | English |
| last_indexed | 2024-04-11T08:51:46Z |
| publishDate | 2022-08-01 |
| publisher | Knowledge E |
| record_format | Article |
| series | Journal of Ophthalmic & Vision Research |
| spelling | doaj.art-4af20742e9ed4de29520df1b3affd2aa2022-12-22T04:33:32ZengKnowledge EJournal of Ophthalmic & Vision Research2008-20102008-322X2022-08-0117339740410.18502/jovr.v17i3.11578jovr.v17i3.11578Post-saccadic Eye Movement Indices Under Cognitive Load: A Path Analysis to Determine Visual PerformanceMarzieh Salehi Fadardi0Javad Salehi Fadardi1Monireh Mahjoob2Hassan Doosti3 Department of Optometry & Vision Sciences, University of Melbourne, Melbourne, Australia Department of Psychology, Ferdowsi University, Mashhad, Iran Health Promotion Research Center, Department of Optometry, Rehabilitation Faculty, Zahedan University of Medical Sciences, Zahedan, Iran Department of Statistics, Macquarie University, Sydney, AustraliaAbstract 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 < 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.https://doi.org/10.18502/jovr.v17i3.11578eye movementsaccadestask performance |
| spellingShingle | Marzieh Salehi Fadardi Javad Salehi Fadardi Monireh Mahjoob Hassan Doosti Post-saccadic Eye Movement Indices Under Cognitive Load: A Path Analysis to Determine Visual Performance Journal of Ophthalmic & Vision Research eye movement saccades task 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 | eye movement saccades task performance |
| url | https://doi.org/10.18502/jovr.v17i3.11578 |
| work_keys_str_mv | AT marziehsalehifadardi postsaccadiceyemovementindicesundercognitiveloadapathanalysistodeterminevisualperformance AT javadsalehifadardi postsaccadiceyemovementindicesundercognitiveloadapathanalysistodeterminevisualperformance AT monirehmahjoob postsaccadiceyemovementindicesundercognitiveloadapathanalysistodeterminevisualperformance AT hassandoosti postsaccadiceyemovementindicesundercognitiveloadapathanalysistodeterminevisualperformance |