主要讲的是研究者研究出一款软件程序，通过被试者的打字情况可以反映出被试者在当时的情况下是否适合工作，以及被试者的精神状态。下面前程百利小编带大家一块看一下这篇托福听力背景材料中出现的生词，希望能给正在备考托福听力的同学带来帮助。
Many of us spend lots of time tapping out (敲打出)words on a keyboard(键盘). Now a team of M.I.T. researchers thinks that how we type might reveal (显示)hidden information (隐藏的信息)about the state of our brains. They designed a study in which a computer could detect (察觉)which subjects were alert and which were fatigued(疲乏的), just from their typing.
The researchers focused on how long any particular key was depressed(沮丧的). They designed a program to evaluate(评估) the keystrokes(打键次数), and ignore the actual content being typed.
For the study, 14 volunteers, seven women and seven men, had to type a Wikipedia article (维基百科)when they were fully alert(警惕). Then they were woken up about 70 to 80 minutes after they’d fallen asleep, when they were in deep slumber(睡眠). They then had to type out another article while still drowsy(昏昏欲睡的).
The result: how long they held down the keys varied much more when they were sleepy (欲睡的)than when they were alert. The research will be published in the journal Scientific Letters.
In their write up the team says that such a system could be useful as a safety feature on software programs for night shifts, to identify users who have become incapacitated (丧失能力的)by sleepiness(睡意). A variation(变化) on the program could help diagnose or monitor neurodegenerative diseases such as Parkinson’s by tracking changes in someone’s ability to manipulate the common keyboard.
疑难词汇：
Fatigued adj. 疲乏的
Keystroke n. 击键;按键vt. 用键盘输入;击打…的键vi. 击键
Incapacitated v. 丧失能力，欠缺行为能力(incapacitate的过去分词)adj. 不能行动的
Neurodegenerative adj. 神经变性的
好了，以上就是前程百利小编为大家整理的“从托福听力背景材料中学单词—打字暴露你的一切”这篇托福听力背景材料中的疑难词汇，希望在备考的路上助大家一臂之力。最后，小编祝大家在托福考试中取得好成绩！
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