The researchers also found that a type of brain activity called sleep spindles played a role in the ability to remember new words.

研究这么还发现一种叫做睡眠纺锤波的的大脑活动在记忆单词的能力方面发挥着作用。

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One type of brain cell in the arcuate produces chemicals that activate the appetite. Another type makes appetite-quashing molecules.

一类弓状核的脑细胞产生引发食欲的分子，另一类则产生抑制食欲的分子。

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The researchers used a type of brain-imaging scan called a T1-weighted MRI which can map structural changes during brain development.

研究员使用一种叫“T1-加权核磁共振器”的大脑镜像扫描仪，可以绘制出在大脑发育时的结构改变。

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While it was an interesting and brain-filling type of employment, the job itself was rather thankless.

FORBES: A Sweet Career: From Day Job to Desserts in Jars

Certain epidemiologic studies (mainly from a single group in Sweden) indicate an elevated risk of glioma (the most malignant type of brain cancer) in long-term users of cell phones.

FORBES: Should The FCC Re-Examine Cell Phone Radiation?

The researchers knew this because they had introduced a radioactive tracer that selectively binds to the same type of receptor in the brain, the mu-opioid variety, as the endorphins.

ECONOMIST: Pain perception