眼下,神经学的研究处在两个断开的层次。
The higher one, where the dimensions of features are measured in centimetres, has manytechniques at its disposal, notably functional magnetic-resonance imaging, whichmeasures changes in tissues fuel consumption.
在相对宏观的层次当中各个特征的规模用厘米来衡量,有很多技术可以使用,尤其是用来测量组织中能量消耗变动情况的核磁共振成像技术。
This lets researchers see which bits ofthe brain are active in particular tasksas long as those tasks can be performed by aperson lying down inside a scanner.
该技术可使研究人员找出在完成具体的任务时,大脑的哪些部分处于活跃状态。
At the other end of the scale, where features are measured in microns, lots of research hasbeen done on how individual nerve cells work, how messages are sent from one to another,and how the connections between cells strengthen and weaken as memories are formed.
而另一个度量的层次则要求用微米来测量各种特征,这一层次的研究很多都是关于单个神经细胞是如何工作的、信息在神经细胞之间是如何传递的以及当产生记忆的时候神经细胞之间的联系是如何得到加强和减弱的。
Between these two, though, all is darkness.
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