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Zahra Sharifi1 
, Amir Pour Mohammadi2 , Seyed Ruhollah Hosseini3 , Shohreh Sadeghi4 , Mohebat Vali5 , Mozhgan Seif5 , Reza Kazemi6
, Amir Pour Mohammadi2 , Seyed Ruhollah Hosseini3 , Shohreh Sadeghi4 , Mohebat Vali5 , Mozhgan Seif5 , Reza Kazemi6
1- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
2- Friedrich-Alexander-Universität Erlangen-Nürnberg, Technical Faculty, Erlangen, Germany
3- Department of Psychology, Faculty of educational science and psychology, Ferdowsi University of Mashhad
4- Sabzevar university of medical sciences
5- Assistant professor of Epidemiology, Shiraz University of Medical Sciences, Shiraz
6- Department of Ergonomics, Shiraz University of Medical Sciences, Shiraz, Iran.
2- Friedrich-Alexander-Universität Erlangen-Nürnberg, Technical Faculty, Erlangen, Germany
3- Department of Psychology, Faculty of educational science and psychology, Ferdowsi University of Mashhad
4- Sabzevar university of medical sciences
5- Assistant professor of Epidemiology, Shiraz University of Medical Sciences, Shiraz
6- Department of Ergonomics, Shiraz University of Medical Sciences, Shiraz, Iran.
Abstract:
Introduction: Cognitive failures during driving are a significant contributor to traffic accidents and fatalities. This study investigates neurophysiological markers of cognitive failure in drivers using electroencephalography (EEG).
Methods: Thirty taxi drivers were classified into high and low cognitive failure groups based on CFQ scores. EEG signals were recorded during eyes-closed rest and eyes-open Go/No-Go tasks to assess brainwave patterns and lobe-specific activation. Statistical analyses included t-tests, repeated measures ANOVA, and Pearson correlations.
Results: Drivers with high cognitive failure showed reduced delta, theta, and gamma activity—particularly in the temporal and occipital lobes—suggesting impaired cognitive processing. In contrast, low-failure drivers exhibited increased delta, theta, and alpha power in frontal and occipital regions. Elevated beta activity in the parietal lobe of high-failure drivers may reflect compensatory processing. Gamma power was consistently lower across all brain regions in this group.
Conclusion: These results highlight specific EEG frequency bands as potential objective markers for identifying cognitive failure in drivers, offering implications for early cognitive assessment and the development of evidence-based safety strategies in driving contexts.
Methods: Thirty taxi drivers were classified into high and low cognitive failure groups based on CFQ scores. EEG signals were recorded during eyes-closed rest and eyes-open Go/No-Go tasks to assess brainwave patterns and lobe-specific activation. Statistical analyses included t-tests, repeated measures ANOVA, and Pearson correlations.
Results: Drivers with high cognitive failure showed reduced delta, theta, and gamma activity—particularly in the temporal and occipital lobes—suggesting impaired cognitive processing. In contrast, low-failure drivers exhibited increased delta, theta, and alpha power in frontal and occipital regions. Elevated beta activity in the parietal lobe of high-failure drivers may reflect compensatory processing. Gamma power was consistently lower across all brain regions in this group.
Conclusion: These results highlight specific EEG frequency bands as potential objective markers for identifying cognitive failure in drivers, offering implications for early cognitive assessment and the development of evidence-based safety strategies in driving contexts.
Type of Study: Original |
Subject:
Cognitive Neuroscience
Received: 2025/07/9 | Accepted: 2025/07/23
Received: 2025/07/9 | Accepted: 2025/07/23
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