Brain activity: speaking words

Brain activity: speaking words

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Credit: SOVEREIGN, ISM/SCIENCE PHOTO LIBRARY

Caption: Brain activity during speech. This is a composite of a 3-D magnetic resonance imaging (MRI) scan (blue) of the brain, overlaid with positron emission tomography (PET) scan data (red/green) showing brain activity. The brain is seen from the side, with the front of the brain at left. The active region is in the left cerebral hemisphere, which is associated with language skills. In this test, words are being spoken, and Broca's area, long associated with speech, is most active. For similar scans showing thinking about words and the reading and hearing of words, see images P335/076, 078 and 079 respectively.

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Keywords: 3-d mri scan, active, activity, area, biological, biology, brain, brain function, broca's area, cerebral cortex, cns, coloured, cortical, false-coloured, healthy, human body, left, magnetic resonance imaging, mri scan, nervous system, neuroimaging, neurology, normal, organ, pet scan, physiological, physiology, region, saying, scanner, speaking, word, words

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