JJ Keller Entry Level Driver Training for CDL (Commercial Driver’s License) Practice Test 2026 - Free CDL Practice Questions and Study Guide

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What phenomenon occurs when a driver fails to notice something directly in front of them due to lack of focus?

Inattention blindness

Inattention blindness occurs when a driver or individual fails to notice an unexpected stimulus that is directly in their line of sight because their focus is directed elsewhere. This phenomenon highlights how attention works; when a person concentrates on a specific task or object, they can become blind to other stimuli that may be equally important or relevant.

For drivers, this can be particularly dangerous as it may cause them to overlook vital cues, such as stop signs, pedestrians, or other vehicles, which can lead to accidents. Inattention blindness emphasizes the critical need for staying focused while driving and being aware of one's surroundings to ensure safety on the road. This concept underscores the importance of maintaining continuous situational awareness to prevent serious driving hazards.

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Auditory exclusion

Selective attention

Spatial neglect

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