CENTRE JEAN PERRIN / ISM / SCIENCE PHOTO LIBRARY CENTRE JEAN PERRIN / ISM / SCIENCE PHOTO LIBRARY
Normal brain activity. Coloured positron emission tomography (PET) scan of an axial section through the healthy brain of an 80-year-old man, showing normal activity. The radioactive tracer used was F18-FDG.
Model release not required. Property release not required.