Related Experiment Video
Updated: Aug 10, 2026

A General Method for Evaluating Deep Brain Stimulation Effects on Intravenous Methamphetamine Self-Administration
Published on: January 22, 2016
The effects of conditioning with amphetamine on the thermic effects of amphetamine and pentobarbital
R E Hinson1, A Streather, G Cosburn
1Department of Psychology, University of Western Ontario, London, Canada.
Abstract:
1. Rats were injected with amphetamine (1.5 mg/kg) in the presence of a distinctive set of environmental stimuli (CS1) and saline in the presence of a different set of environmental stimuli (CS2) on different days for a total of 10 amphetamine and 20 saline injections. 2. The hyperthermic effect of amphetamine first increased but then declined to levels seen during the very first drug administration. 3. Following the conditioning phase, half the rats were injected with amphetamine in CS1 and half in CS2. Although there was little thermic effect of amphetamine injected in CS1, there was pronounced hyperthermia following amphetamine in CS2. 4. Next, pentobarbital (30 mg/kg) was administered to half the rats in CS1 and half in CS2. The hypothermic effect of pentobarbital was attenuated in CS2.
More Related Videos
06:57Determining Basal Energy Expenditure and the Capacity of Thermogenic Adipocytes to Expend Energy in Obese Mice
Published on: November 11, 2021
04:54Using a Combination of Indirect Calorimetry, Infrared Thermography, and Blood Glucose Levels to Measure Brown Adipose Tissue Thermogenesis in Humans
Published on: June 2, 2023
Related Concept Videos
Desensitization and Tachyphylaxis
Several...
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...
Adrenergic Agonists: Indirect-Acting Agents
One mechanism involves depleting stored catecholamines by displacing them from synaptic vesicles. These agents, known as "displacers," are transported into vesicles at the expense of noradrenaline. Examples include amphetamine and tyramine, which lack a catechol moiety, resulting in prolonged action, improved oral bioavailability, and...
CNS Stimulants: Cocaine, Amphetamines and Cannabinoids
Stimulants
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...