drugs and the driving skill

[jenniferchristy]

I. IMPACT OF DRUG USE ON DRIVING

A. Necessary Driving Skills

1. Several skills necessary for driving include: vision, reaction time, judgment, hearing, and simultaneous task processing/accomplishment.

2. Driving skills can be divided into cognitive skills, such as information processing, and psycho motor skills.

B. Drug Impact on Driving Skills

1. Impairment is related to alcohol, in terms of its concentration in the blood stream.

2. The brain's control of eye movements is highly vulnerable to alcohol. It only takes low to moderate blood alcohol concentrations (.03 to .05%) to interfere with voluntary eye movements and impair the eyes' ability to rapidly track a moving target.

3. Steering an automobile is adversely affected by alcohol, as alcohol affects eye-to-hand reaction times, which are superimposed upon the visual effects. Significant impairment and deterioration of steering ability begin at approximately .03 to .04% Blood Alcohol Concentrations and continue to deteriorate as Blood Alcohol Concentration rises.

4. Almost every aspect of the brain's information-processing ability is impaired by alcohol. Alcohol-impaired drivers require more time to read street signs or respond to traffic signals than unimpaired drivers. Research on the effects of alcohol on the performance of automobile and aircraft operators shows a narrowing of the attention field beginning at .04% blood alcohol concentration.

[John White]

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Thanks for the wonderful post.

[mamedesign]

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