Typing Style Reveals Fatigue or Disease
打字风格预测疾病
How a person types can reveal the state of their brain, according to a study that tracked keystrokes when the typist was alert or groggy. Cynthia Graber reports
一项研究通过监测打字者在清醒或疲劳状态下的敲键情况，说明了一个人的打字习惯可以反映他的大脑状况。
撰文/播音 辛西亚·格雷伯（Cynthia Graber）
翻译 李轩
Many of us spend lots of time tapping out words on a keyboard. Now a team of M.I.T. researchers thinks that how we type might reveal hidden information about the state of our brains. They designed a study in which a computer could detect which subjects were alert and which were fatigued, just from their typing.
我们中的许多人每天都会花很多时间在键盘上敲击。近是，麻省理工大学的一个研究团队认为我们打字的方式可以揭示有关大脑状况的隐藏信息。他们设计了一个实验，可以利用电脑监测受试者的打字状况，来判断此人处于清醒状态还是疲劳状态。
The researchers focused on how long any particular key was depressed. They designed a program to evaluate the keystrokes, and ignore the actual content being typed.
研究人员将焦点放在了按键的下压时间。他们编写了一个程序来评估击键状态，而忽略了实际键入的内容。
For the study, 14 volunteers, seven women and seven men, had to type a Wikipedia article when they were fully alert. Then they were woken up about 70 to 80 minutes after they’d fallen asleep, when they were in deep slumber. They then had to type out another article while still drowsy.
该研究一共有14个志愿者——7名女性、7名男性。在他们完全清醒的状态下，他们被要求键入维基百科的文章。接着，在进入深度睡眠70到80分钟后，他们被叫起，在昏睡状态下键入另一篇文章。
The result: how long they held down the keys varied much more when they were sleepy than when they were alert. The research will be published in the journal Scientific Letters. [Link to come upon publication.]
结果是：他们在昏睡状态下的按键时间明显要长于清醒状态。研究将会发表在《科学快报》上。
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 by sleepiness. A variation 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.
研究团队在论文中称，这个系统可能可以作为夜间工作者的安全保障软件，可以判断是否有人被困意缠身而丧失了工作能力。一个更深入的应用可能是：通过跟踪一个人操作键盘的能力的变化来协助诊断并测控神经退行性疾病，比如帕金森综合症。
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