Brain imaging was once thought to be too costly and difficult for widespread use in the developing world. But the technology soon may be available in poor countries. Brain imaging creates pictures of brain activity. It uses infrared light -- similar to the light produced by a television remote control. Brain imaging can identify the first signs of cognitive delays, mental problems, in newborns and young children. Such children could be suffering from malnutrition a poor diet.
The technology has a long name -- functional near-infrared spectroscopy, or f-N-I-R-S. It involves placing an extremely small, soft helmet around a babys head. Infrared light is sent through the bone protecting the brain. It helps to show whether babies are developing normally for their age.
f-N-I-R-S is considered safer than other imaging methods, including MRI or PET scan. And it also can be easily moved. The brain scanner equipment can be loaded into a vehicle. Health workers can drive it from village to village.
Clare Elwell is a professor of medical physics at University College London. She helped develop the relatively low-cost, non-invasive imaging technology. She says the device measures oxygen in the blood to learn how babies brains are developing.
And as you use different areas of your brain, you direct oxygen to those different brain areas. And so if we look at the change in the distribution of the oxygen in your brain, we can work out how active your brain is and what your brain is actually processing.
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