Whether it’s on a keyboard, a smartphone, or even a credit card reader, you spend a lot of your day typing. Well, researchers at MIT noticed the value of this daily habit, and are putting it to a secondary use; they’ve developed software that can gauge the speed at which a typist is tapping the keyboard to help diagnose Parkinson’s disease.
In order to type a word, your brain has to send signals down through your spinal cord to the nerves that operate your fingers. If your central nervous system is functioning perfectly, then you should be able to tap most of the keys at a fairly constant rate. But a number of conditions might slow the signal from the brain to the fingers, such as sleep deprivation (which slows all motor skills) and diseases that affect the central nervous system, including Parkinson’s.
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