Coffee has been shown to improve vigilance, and people have long assumed that stopping for caffeine can perk up tired drivers but in 2011 researchers found that "improvements in driving performance and alertness after caffeine are likely to represent withdrawal reversal rather than a net beneficial effect of caffeine".
Research demonstrates that music played at quiet or moderate volume levels improves performance and alertness while driving.
Overall, the provision of real-time feedback resulted in reduced drowsiness (lower JDS scores) and improved alertness and driving performance ratings.
"This study provides real-time neuroimaging evidence supporting previous behavioural observations suggesting that multitasking while driving may compromise vision and alertness," study researcher Dr. Tom Schweizer, who is a a neuroscientist and director of the Neuroscience Research Program at St. Michael Hospital's Li Ka Shing Knowledge Institute, said in a statement.
For instance, research has found that being exposed to peppermint aroma improves memory (Moss et al., 2008), sustained visual attention (Warm et al., 1991), dual-task performance (Ho & Spence, 2005), athletic task performance (Raudenbush et al., 2001), and alertness in a driving simulator task (Raudenbush et al., 2009), and affects the allocation of attention in time (Colzato et al., 2014).
If you ever take this drug, you need to avoid certain activities that need alertness such as driving or operating heavy duty machinery.
"If you listen to certain artists or songs when you're trying to stay alert while driving or when you're exercising, subconsciously, you're associating that music with alertness," Colon says.
Irregular heart rhythms can cause dizziness while driving, and chronic insomnia can diminish alertness and increase the risk of dozing off at the wheel.
Mr. Karasyk said officers activated lights and sirens and yelled at Mr. Polanco to pull over, but he sped up and continued driving, which escalated the officers' level of alertness.
Aha, now what is this on page 186 on the Driver Alert Warning with its steaming coffee cup: 'It monitors your alertness level based upon your driving behaviour in relation to the lane markings and other factors.' And I thought it was triggered by the length of time you'd been driving non-stop.
