While operating a motor vehicle at night, an impaired driver tends to fixate straight ahead on the road and fails to notice a pedestrian stepping onto the crosswalk from the side shoulder. Which physiological effect of alcohol directly accounts for this critical safety hazard?
- Narrowing of the driver's peripheral vision, leading to a restricted visual field often described as 'tunnel vision'Cevap
- BFailing to conduct a shoulder check due to incorrect reliance on side mirrors alone
- CAssuming legal driving ability as long as blood alcohol concentration remains below statutory limits
- DMisjudging posted safe driving speeds under basic speed law regulations
Cevap
Narrowing of the driver's peripheral vision, leading to a restricted visual field often described as 'tunnel vision'
Alcohol acts as a central nervous system depressant that degrades sensory processing. One of its primary physiological impacts on vision is the restriction of peripheral vision (side vision), causing 'tunnel vision.' As a result, impaired drivers lose the ability to detect hazards approaching from the sides without turning their head completely.
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Effect of alcohol on peripheral vision and visual field width
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