Coloured PET scan of brain during drugged sleep
Numéro d’image : 11863978
| Brain during drugged sleep. Coloured Positron Emission Tomography (PET) scan of the human brain during drugged sleep. The drug was zolpidem. The colour-coding depicts active cerebral brain areas (yellow) through to inactive areas (purple). The brain is inactive,undergoing a deeper sleep phase than normal NREM sleep. Sleeping drugs promote sleep by reducing nerve cell activity in the brain. PET scanning shows the metabolic activity of the brain. A radioactive tracer (here,radio- labelled glucose) is injected into the patient's blood and absorbed by active tissues of the brain. The PET scanner detects photons emitted by the tracer,to produce a "slice" image of the brain | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Morgan, Hank |
| Taille de l’image : | 3579 px × 4455 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : |
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