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Related Concept Videos

Drugs Acting on Autonomic Ganglia: Stimulants01:23

Drugs Acting on Autonomic Ganglia: Stimulants


Ganglionic stimulants activate NM nicotinic receptors in autonomic ganglia, falling into two categories: nicotine mimetics [e.g., lobeline, dimethylpiperazine, tetramethylammonium] and muscarinic receptor agonists [e.g., muscarine, methacholine]. The first category's action is rapid and blocked by nicotinic receptor antagonists, while the second category's action is delayed and blocked by atropine-like agents. Nicotine, an alkaloid, affects the heart rate by stimulating sympathetic or...
CNS Depressants: Alcohol and Nicotine01:27

CNS Depressants: Alcohol and Nicotine

Ethanol, a clear colorless alcohol, has been consumed by humans for millennia, but its effects on the body are far from benign. At lower doses, it induces decreased inhibitions and loquaciousness, leading to its social appeal. However, it can cause severe consequences at higher doses, such as coma and respiratory depression, due to its zero-order elimination kinetics. Chronic ethanol abuse wreaks havoc on multiple organ systems, particularly the CNS and the liver. Abrupt cessation of ethanol...
Drug Dependence01:17

Drug Dependence

Medications are typically administered to achieve therapeutic effects. Some drugs can modify an individual's mood and perception, frequently resulting in various enjoyable experiences. However, this can result in drug dependency, a condition marked by continuous drug use despite potential negative consequences. Drug dependency primarily falls into two categories: psychological and physical dependence. Psychological dependence occurs when the pleasurable feelings induced by the drug...
Stimulants01:29

Stimulants

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...

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Related Experiment Video

Updated: Jun 11, 2026

Spectral Confocal Imaging of Fluorescently tagged Nicotinic Receptors in Knock-in Mice with Chronic Nicotine Administration
08:47

Spectral Confocal Imaging of Fluorescently tagged Nicotinic Receptors in Knock-in Mice with Chronic Nicotine Administration

Published on: February 10, 2012

Nicotine deprivation and pilot performance during simulated flight.

Martin S Mumenthaler1, Neal L Benowitz, Joy L Taylor

  • 1Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA 94305, USA. msm@stanford.edu

Aviation, Space, and Environmental Medicine
|July 6, 2010
PubMed
Summary

Nicotine withdrawal can impair pilot performance. Chewing nicotine gum significantly improved flight simulator performance compared to placebo gum during smoking abstinence.

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Last Updated: Jun 11, 2026

Spectral Confocal Imaging of Fluorescently tagged Nicotinic Receptors in Knock-in Mice with Chronic Nicotine Administration
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Published on: August 10, 2014

Area of Science:

  • Aviation Psychology
  • Human Factors in Flight Operations
  • Nicotine Addiction Research

Background:

  • Airlines' no-smoking policies may impact pilot performance due to nicotine withdrawal.
  • Understanding the effects of smoking cessation on pilots is crucial for flight safety.

Purpose of the Study:

  • To investigate if nicotine withdrawal affects aircraft pilot performance within 12 hours of smoking cessation.
  • To determine if chewing nicotine gum alleviates withdrawal symptoms and improves pilot performance.

Main Methods:

  • A randomized controlled trial involving 29 regular smoker pilots in a flight simulator.
  • Pilots underwent two 13-hour test days with three flights each, under different smoking/gum conditions.
  • Performance was measured using Flight Summary Scores (FSS) and analyzed with ANOVAs.

Main Results:

  • No significant overall performance differences were found between pilots smoking cigarettes and those abstaining without gum.
  • Pilots abstaining from smoking and not using gum showed a trend towards worse performance.
  • Pilots chewing nicotine gum performed significantly better than those chewing placebo gum at 6 and 12 hours.

Conclusions:

  • Nicotine withdrawal can impair aircraft pilot performance within 12 hours of smoking cessation.
  • Chewing 4-mg nicotine gum hourly during smoking abstinence significantly enhances overall flight performance compared to placebo gum.