Coloured 3-D PET brain scan during visual activity

Coloured 3-D PET brain scan during visual activity

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Caption: Brain's visual centre. Coloured three-dimensional positron emission tomography (PET) scan of the brain seen from below during visual activity. The frontal lobe is at lower centre. The scan shows the amount of glucose (sugar) consumption and hence areas of low (blue) and high (red & white) brain activity. The most active area is the visual cortex within the occipital lobe at the back of the brain (at upper centre). The cerebellum has been removed to allow this area to be viewed more clearly. PET scans use radioactively-labelled substances introduced into the blood to view metabolic activity in three-dimensions.

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Keywords: anatomy, brain, brain activity, brain function, brain scan, cortex, human body, nervous system, neuroimaging, occipital lobe, pet, pet scan, vision, visual, visual activity, visual cortex

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