来源:普特英语听力 2019-04-01
— 查看译文 —

tips:怎样阅读才是有质量的阅读了? 中英对照请点击【中英对照】查看译文请点击 【查看译文】进行核对。


From VOA Learning English, this is the Technology Report.

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 malnutritiona 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 technologyShe says the device measures oxygen in the blood to learn how babiesbrains 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.”
Clare Elwell led a study of the testing method in rural Gambia. The babies involved were between four and eight months old. They were examined three times over 15 months. Researchers noted the babiesreactions to different images and sounds.
So if we present the babies with visual or auditory stimuli, then we expect certain brain areas to light up, essentially. We expect the oxygen to be diverted to certain brain regions.”
She says that shows if those brain areas are fully developed or mature. And, she says, it shows if they are performing normally.
The babies looked at pictures of objects and people. Human speech and non-human sounds such as running water and bells tested the babieshearing. And their brain recognition was compared to those of British children.
Clare Elwell says poor nutrition and childhood diseases threaten the African children. She says the goal is to identify babies needing to be better fed or treated for health problems that can harm brain development.
And that's the Technology Report from VOA Learning EnglishI'm Jonathan Evans.

本文来源于LK英语乐园[report整理] SENEWS-2014-09-08





Clare Elwell是伦敦大学学院医用物理学教授,她帮助研发了这种相对低成本、无损伤性成像技术。她表示该设备测量血液含氧量来了解婴儿大脑发育情况。


Clare Elwell在冈比亚农村地区发起了一项对该测试方法的研究。研究人员在15个月内,给四个月至八个月的婴儿检查了三次,他们注意到婴儿对不同图像和声音的反应。




Clare Elwell称营养不良和儿童疾病威胁非洲儿童。她表示目的在于识别出需要改善饮食或治疗可能损伤大脑发育的健康问题婴儿。

以上是美国之音慢速英语科技报道。我是Jonathan Evans