traffic alters brain activity
In case of severe fatigue appear similar to the volleys of electrical activity called sleep spindles alpha: a computer algorithm is able to identify
LONDON - For the brain 20 minutes of driving in traffic are not very different from 20 minutes to dig past a wheat field. Electroencephalogram in fact observed the same alterations of electrical activity: alpha brain waves alternating with so-called fusi del sonno. Mentre il ritmo alfa normale (onde di 8-12 Hertz, cioè in media 10 cicli al secondo con un’ampiezza di 40-50 microvolt) si registra a riposo quando si sta a occhi chiusi e completamente rilassati, in caso di grave affaticamento compaiono salve di attività elettrica simile ai cosiddetti fusi alfa del sonno. Secondo uno studio in pubblicazione su Clinical Neurophysiology e condotto dai ricercatori tedeschi delle università di Tübingen, Regensburg e Düsseldorf in collaborazione col Dipartimento di psicologia e medicina del traffico del Federal Highway Research Institute tedesco, la comparsa di questi fusi insieme a onde alfa in una persona che sta guidando rappresenta il miglior indice di affaticamento cerebrale.
ALGORITMO - The trains are fused alpha waves of 12-16 Hz that appear for a few seconds before the stage 2 non-REM sleep, the average, indicating that the brain needs rest. If driving is better to come when we let go the wheel and take a break. In the German study were presented both in the laboratory using a driving simulator, both with real driving in city traffic. Researchers have developed a special computer algorithm that can automatically detect the appearance of the fused alpha even when no distinction between a normal EEG, which for now will be useful in clinical studies of brain activity and that in the future could perhaps be integrated into microsensor can be worn as a skin spectacles and connected to an alarm to take on long trips on the dashboard to alert the driver when to stop at a motorway.
Caesar Peccarisi
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