Coloured PET scan of brain during drugged sleep

Bildnummer 11863978
Coloured PET scan of brain during drugged sleep
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
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library / Morgan, Hank
Bildgröße: 3579 px × 4455 px
Modell-Rechte: nicht erforderlich
Eigentums-Rechte: nicht erforderlich
Restrictions:
  • USA CAN JPN

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