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Gamma camera scan of blood flow in the brain

Gamma camera scan of blood flow in the brain

M150/0010

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Credit

CNRI / SCIENCE PHOTO LIBRARY CNRI / SCIENCE PHOTO LIBRARY

Caption

False colour scintigram (gamma camera scan) comparing density of blood flow in the brain of a normal control subject (top), with the greatly increased activity in the brain of an epileptic (bottom). The epileptic brain scan was recorded after a fit, when the person was experiencing deja vu, a vivid psychic revelation in which contemporary experiences appear to be a repetition of past events. Deja vu is a classic symptom of temporal lobe epilepsy, a disease of the cortex of the temporal lobe (or the adjacent parietal lobe) of the brain.

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