determined the PUI in 137 truck drivers during a police check.
The PUI has already been evaluated in drivers during traffic controls. the psychomotor vigilance task, PVT) or tests that detect physiological markers of fatigue, such as the pupillary unrest index (PUI). Stanford Sleeping Scale), tests that evaluate the concentration and responsiveness (e.g. Such tools are, for example, specific questionnaires (e.g. To avoid accidents that are caused by sleepiness, several tools and methods have been evaluated.
#Pupillary reaction test driver#
One major driver for accidents is fatigue, in particular, after long working shifts. In particular, impaired cognitive conditions can elevate the risk of accidents, both at the workplace or on the road. The ability to work or to drive properly can be influenced by several factors, such as a lack of concentration or responsiveness. Our study delivers first promising results to further develop devices that may identify conditions that impair the ability to work or drive. The participants’ latency showed a significant association in dependence of the type of exposure after the second light pulse ( p < 0.05). In a generalized linear mixed models design, we could observe statistically significant associations between the type of exposure and the PLR parameters half dilatation time and half dilatation time after the first light pulse (all p < 0.05). Differences in the PLR parameters initial diameter (d init), latency (∆t lat), acceleration (∆t a), contraction velocity (ϑ con), quarter dilatation velocity (ϑ 1/4dil), half dilatation time (∆t 1/2), and the line integral (L(0.3500)) have been evaluated between baseline, sleep deprivation, as well as alcohol exposure. ResultsĪltogether n = 50 participants have been included in this study. In addition, we wanted to identify PLR parameters that were altered by sleep deprivation and alcohol exposure. The aim of this study was to investigate the feasibility of PLR measurements in sleep-deprived and alcohol-exposed participants. However, the effect of sleep deprivation on PLR parameters is still under debate.
PLR alterations have been described in people after alcohol consumption, as well. The PLR (pupillary light reflex) can be a marker for pathological medical conditions, such as neurodegenerative or mental health disorders and diseases as well as marker for physiological alterations, such as age, sex or iris color.
0 kommentar(er)
