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Delwedd:PET - Human Addiction.jpg

PET_-_Human_Addiction.jpg ‎((300 × 218 picsel, maint y ffeil: 15 KB, ffurf MIME: image/jpeg))

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PET brain scans show chemical differences in the brain between addicts and non-addicts. The normal images in the bottom row come from non-addicts; the abnormal images in the top row come from patients with addiction disorders.

These PET brain scans show that that addicts have fewer than average dopamine receptors in their brains, so that weaker dopamine signals are sent between cells.
Dyddiad
Ffynhonnell http://www.er.doe.gov/accomplishments_awards/Decades_Discovery/94.html
Awdur Nora Volkow
Caniatâd
(Ailddefnyddio'r ffeil hon)
Public domain This image is a work of a United States Department of Energy (or predecessor organization) employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.

Please note that national laboratories operate under varying licences and some are not free. Check the site policies of any national lab before crediting it with this tag.

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cyfredol17:23, 12 Rhagfyr 2009Bawdlun y fersiwn am 17:23, 12 Rhagfyr 2009300 × 218 (15 KB)Was a bee{{Information |Description=PET brain scans show chemical differences in the brain between addicts and non-addicts. The normal images in the bottom row come from non-addicts; the abnormal images in the top row come from patients with addiction disorders.

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