1-Dec-2001
Methamphetamine delivers 'one-two' punch to the brain
DOE/Brookhaven National LaboratoryPeer-Reviewed Publication
A new brain-imaging study at the U.S. Department of Energy's Brookhaven National Laboratory reveals that, compared with people who don't use drugs, people who abuse methamphetamine have fewer receptors for dopamine, a brain chemical associated with feelings of reward and pleasure. Furthermore, in the drug abusers, low dopamine receptor levels were linked with reduced metabolic activity in a brain region that regulates motivation and "drive." This mechanism may knock out the brain’s ability to "just say no" to the drug.
- Journal
- American Journal of Psychiatry
- Funder
- DOE/US Department of Energy, Office of National Drug Control Policy, NIH/National Institute on Drug Abuse