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I Built a Brain Computer Interface for Tackling ADHD in Children

A playful headpiece called Agent Unicorn incorporates an EEG that detects P300, the neural signature of attention

4 min read
G.tec's commercialized version of the Unicorn EEG.
Photo: Anouk Wipprecht/g.Tec

G.tec's commercialized version of the Unicorn EEG.Attention Seeker: G.tec has introduced a commercialized version of the Unicorn EEG (above).Photo: Anouk Wipprecht/g.Tec

I am a fashion-tech designer: I combine fashion with engineering, science, and interactive user-experience technologies. When worn, many of my designs monitor physiological indicators—such as heart rate—and react to this information in some way, communicating the wearer’s internal state. In 2016, I was in Linz, Austria, as an Ars Electronica Futurelab artist-in-residence, and I decided to take the opportunity to see if I could apply my techniques therapeutically.

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From WinZips to Cat GIFs, Jacob Ziv’s Algorithms Have Powered Decades of Compression

The lossless-compression pioneer received the 2021 IEEE Medal of Honor

11 min read
Photo of Jacob Ziv
Photo: Rami Shlush

Lossless data compression seems a bit like a magic trick. Its cousin, lossy compression, is easier to comprehend. Lossy algorithms are used to get music into the popular MP3 format and turn a digital image into a standard JPEG file. They do this by selectively removing bits, taking what scientists know about the way we see and hear to determine which bits we'd least miss. But no one can make the case that the resulting file is a perfect replica of the original.

Not so with lossless data compression. Bits do disappear, making the data file dramatically smaller and thus easier to store and transmit. The important difference is that the bits reappear on command. It's as if the bits are rabbits in a magician's act, disappearing and then reappearing from inside a hat at the wave of a wand.

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