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In early April, Adam Wilson posted a status update on the social networking website Twitter—just by thinking about it. Just 23 characters long, his message, “using EEG to send tweet,” demonstrates a natural, manageable way in which “locked-in” patients can couple brain-computer interface technologies with modern communication tools. A University of Wisconsin-Madison biomedical engineering doctoral student, Wilson is among a growing group of researchers worldwide who aim to perfect a communication system for users whose bodies do not work, but whose brains function normally. Among those are people who have ALS, brain-stem stroke or high spinal cord injury. Some brain-computer interface systems employ an electrode-studded cap wired to a computer.
Researchers in Brooklyn have recently accomplished comparable feats, with a single dose of an experimental drug delivered to areas of the brain critical for holding specific types of , like emotional associations, spatial knowledge or motor skills. The drug blocks the activity of a substance that the brain apparently needs to retain much of its learned information. And if enhanced, the substance could help ward off dementias and other memory problems. So far, the research has been done only on animals.
THE CITY HAS always been an engine of intellectual life, from the 18th-century coffeehouses of London, where citizens gathered to discuss chemistry and radical politics, to the Left Bank bars of modern Paris, where Pablo Picasso held forth on modern art. Without the metropolis, we might not have had the great art of Shakespeare or James Joyce; even Einstein was inspired by commuter trains. And yet, city life isn't easy.
I’m a pretty prolific blogger — between regular posts at Zen Habits, and writing regularly for blogs such as Web Worker Daily , FreelanceSwitch , NorthxEast and more, and writing guest posts for other blogs (such as the excellent Skelliewag ), I write a lot of posts every week. And what’s asked of me most often, besides “How can you write so much?”, is the more difficult question: “How do you come up with so many ideas for posts?”