Related Experiment Video
Updated: Aug 9, 2026
11:12
Driving Simulation in the Clinic: Testing Visual Exploratory Behavior in Daily Life Activities in Patients with Visual Field Defects
Published on: September 18, 2012
The effects of dexamphetamine on simulated driving performance
B Y Silber1, K Papafotiou, R J Croft
1Drugs and Driving Research Unit, Centre for Neuropsychology, Swinburne University of Technology, P.O. Box 218, Hawthorn, Vic., 3122, Australia.
Psychopharmacology
|December 23, 2004
Summary
Amphetamine use impairs simulated daytime driving, leading to slower reactions and increased errors like running red lights. This drug effect may contribute to road safety concerns.
Area of Science:
- Pharmacology
- Traffic Safety
- Human Performance
Background:
- Amphetamine-related road fatalities remain constant, but drug-induced impairment and its link to fatalities are unclear.
- Understanding the impact of amphetamines on driving is crucial for public safety.
Purpose of the Study:
- To investigate the acute effects of dexamphetamine (0.42 mg/kg) on simulated driving performance.
- To identify specific driving abilities impaired by dexamphetamine.
Main Methods:
- Double-blind, placebo-controlled, repeated-measures study with 20 healthy volunteers.
- Simulated driving tasks under dexamphetamine and placebo conditions.
- Pharmacokinetic analysis via blood and saliva samples.
Main Results:
- Dexamphetamine significantly reduced overall simulated driving performance during daytime tasks.
- Impaired behaviors included incorrect signaling, failure to stop at red lights, and slower reaction times.
- No significant impairment was observed in simulated night-time driving tasks.
Conclusions:
- Dexamphetamine impairs daytime simulated driving, consistent with perceptual narrowing (tunnel vision).
- Findings highlight the risks associated with amphetamine use while driving.
Related Concept Videos
01:30Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists
Cognitive enhancers, also known as "smart drugs," are substances used to enhance memory, mental alertness, and concentration. These can be natural or synthetic and improve cognition in conditions like Alzheimer's disease (AD) and other neurodegenerative diseases. Some common examples include caffeine, amphetamines, methylphenidate, modafinil, arecoline, donepezil, vortioxetine, and piracetam. These enhancers work on the principle of synaptic plasticity and altered circuit function. They...
01:29Stimulants
Stimulants are substances that enhance neural activity and elevate dopamine levels in the brain, leading to their highly addictive nature. These drugs include cocaine, amphetamines, MDMA, caffeine, and nicotine, each with distinct mechanisms of action and varied health implications.
Cocaine can be administered via snorting, injection, or smoking. It primarily functions by blocking the reuptake of dopamine, resulting in a euphoric high characterized by an intense sensation of happiness and...
Cocaine can be administered via snorting, injection, or smoking. It primarily functions by blocking the reuptake of dopamine, resulting in a euphoric high characterized by an intense sensation of happiness and...