(ABC NEWS) -- On Tuesday's World News broadcast, correspondent Lisa Stark demonstrates the dangers of driving after taking sleeping medication. She traveled to the University of Iowa, home of the most advanced driving simulator in the country, to reproduce the experience of driving while under the influence of such medication.
"I feel a little bit zombie-like, I have to admit."
Before the trial, she demonstrates abilities of a good driver within the simulator.
"You did fine in your test run," Omar Ahmad, director of operations for the National Advanced Driving Simulator tells her. "You were alert, you were paying attention, you were able to track, you were fairly well within the speed limit, your eye movements were consistent with someone who's alert, scanning the traffic around them as you should be."
Stark then takes a sleeping pill and undergoes another series of driving simulations. Click on the video player above for the full story.
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