Publicação
Evaluation of electrophysiological parameters of dazzling effect
| dc.contributor.advisor | Letournel, Anna | |
| dc.contributor.author | Rei, José Pedro Botas | |
| dc.date.accessioned | 2026-01-20T10:46:50Z | |
| dc.date.available | 2026-01-20T10:46:50Z | |
| dc.date.issued | 2025-12 | |
| dc.description.abstract | The dazzling effect, characterized by temporary vision impairment caused by intense light exposure, poses significant risks in scenarios requiring high concentration, such as driving a car in a highway or landing a plane. This dissertation explores the impact of dazzle on cognitive performance by analysing brain activity using electroencephalography (EEG). EEG is a non-invasive method that measures the brain’s electrical activity by amplifying and recording spontaneous biological potentials from the scalp, making it a tool adaptable to multiple research protocols. In this study, EEG is utilized for its potential as a highly reliable technique to detect changes in concentration by evaluating electrophysiological parameters during dazzling events. Studies indicate that when individuals engaged in tasks requiring high concentration are exposed to dazzle, they report discomfort and experience impairment. This is reflected in their performance through slower reaction times, reduced task speed, and a noticeable loss of focus, all of which can be measured using EEG. Participants performed N-Back Tasks, a well-known method to measure cognitive workload, while being exposed to intermittent white light bursts. EEG data was collected to assess variations in concentration levels, reaction times, and task performance by analysing brain wave activity. The study aims to explore the dazzling effect primarily in terms of its impact on concentration. The results are expected to show that dazzling disrupts cognitive focus, slows reaction times, and impairs participants’task performance. Ultimately, the findings of this dissertation support future research in this area, given the scarcity of publicly available information. This limitation largely stems from the topic’s frequent investigation within military settings, where detailed data are typically restricted. | eng |
| dc.identifier.tid | 204121345 | |
| dc.identifier.uri | http://hdl.handle.net/10400.26/61017 | |
| dc.language.iso | eng | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | Dazzling effect | |
| dc.subject | EEG | |
| dc.subject | Concentration | |
| dc.subject | Cognitive workload | |
| dc.title | Evaluation of electrophysiological parameters of dazzling effect | eng |
| dc.type | master thesis | |
| dspace.entity.type | Publication | |
| thesis.degree.grantor | Instituto Politécnico de Setúbal | |
| thesis.degree.name | Mestrado em Engenharia Biomédica |
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