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SSS 2010-05-06

时间：2010-06-11 03:12:54

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（单词翻译）

The big dream for neuroscientists is to be able to watch our brain cells in action, in real time. 

Well, new research has maybe found the most promising1 tool yet—a technique to watch individual neurons light up in response to a stimulus2, like flipping3 on a light switch.

Scientists at the Max Planck Institute inserted a light-sensitive protein into a lab mouse. When a neuron fires, calcium4 ions flood through special cell channels. And when this light-sensitive protein binds5 to calcium, it radiates yellow light. So when the neuron fires it glows yellow.

When scientists shot a puff6 of air at the mouse’s whiskers, the brain cells in the sensory7 areas of the cortex glowed yellow. They watch this via thin glass fibers8 inserted into that brain region.

With this technique scientists now have a way to watch single cell activity in many different regions of the brain at once.

The hope is to investigate how the brain forms and loses neural9 connections during life experiences and when suffering from illnesses such as Alzheimer’s, Parkinson’s and schizophrenia.

—Christie Nicholson


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1 promising BkQzsk     
adj.有希望的，有前途的
参考例句：
  • The results of the experiments are very promising.实验的结果充满了希望。
  • We're trying to bring along one or two promising young swimmers.我们正设法培养出一两名有前途的年轻游泳选手。
2 stimulus 3huyO     
n.刺激，刺激物，促进因素，引起兴奋的事物
参考例句：
  • Regard each failure as a stimulus to further efforts.把每次失利看成对进一步努力的激励。
  • Light is a stimulus to growth in plants.光是促进植物生长的一个因素。
3 flipping b69cb8e0c44ab7550c47eaf7c01557e4     
讨厌之极的
参考例句：
  • I hate this flipping hotel! 我讨厌这个该死的旅馆！
  • Don't go flipping your lid. 别发火。
4 calcium sNdzY     
n.钙(化学符号Ca)
参考例句：
  • We need calcium to make bones.我们需要钙来壮骨。
  • Calcium is found most abundantly in milk.奶含钙最丰富。
5 binds c1d4f6440575ef07da0adc7e8adbb66c     
v.约束( bind的第三人称单数 )；装订；捆绑；（用长布条）缠绕
参考例句：
  • Frost binds the soil. 霜使土壤凝结。 来自《简明英汉词典》
  • Stones and cement binds strongly. 石头和水泥凝固得很牢。 来自《简明英汉词典》
6 puff y0cz8     
n.一口(气)；一阵(风)；v.喷气，喘气
参考例句：
  • He took a puff at his cigarette.他吸了一口香烟。
  • They tried their best to puff the book they published.他们尽力吹捧他们出版的书。
7 sensory Azlwe     
adj.知觉的，感觉的，知觉器官的
参考例句：
  • Human powers of sensory discrimination are limited.人类感官分辨能力有限。
  • The sensory system may undergo long-term adaptation in alien environments.感觉系统对陌生的环境可能经过长时期才能适应。
8 fibers 421d63991f1d1fc8826d6e71d5e15f53     
光纤( fiber的名词复数 )； （织物的）质地； 纤维，纤维物质
参考例句：
  • Thesolution of collagen-PVA was wet spined with the sodium sulfate as coagulant and collagen-PVA composite fibers were prepared. 在此基础上，以硫酸钠为凝固剂，对胶原-PVA共混溶液进行湿法纺丝，制备了胶原-PVA复合纤维。
  • Sympathetic fibers are distributed to all regions of the heart. 交感神经纤维分布于心脏的所有部分。
9 neural DnXzFt     
adj.神经的，神经系统的
参考例句：
  • The neural network can preferably solve the non- linear problem.利用神经网络建模可以较好地解决非线性问题。
  • The information transmission in neural system depends on neurotransmitters.信息传递的神经途径有赖于神经递质。

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