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Device aimed at allowing 'brain wave’communication unveiled

2012/06/30 22:11:17

Taipei, June 30 (CNA) A research team at National Central University on Saturday unveiled a device that it said could magnify brain waves to help physically challenged people communicate with others.

Lee Po-lei, an associate professor at the university, said a brain wave is usually triggered 0.1 seconds after the eyes see an object.

However, the signal is weak and can be easily disrupted by power sources or electromagnetic waves emitted by other devisessuch as cell phones, he said.

Moreover, the scalp is not a "good conductor," Lee said.

"But the research team put a small electrode on the head of the users to filter out unwanted signals and magnify the brain wave signal, which is sent out as from a base station,” he said. "In this way, one could have remote control over equipment within a range of 100 meters."

The technology could be used to help people whose range ofmotions is restricted due to diseases of the nervous system,strokes or spinal cord injuries, Lee said.

It will allow signal exchanges by means of brain waves, which would take over the function of the hands, he added.

The device could also be linked to a typewriter, mouse or key board to allow the physically challenged to communicate with others, Lee said.

The device was one of the innovations unveiled by Taipei Veterans General Hospital and University System of Taiwan (UST), which comprises National Central University, National Tsing Hua University, National Chiao Tung University and National Yang Ming University.

(By Zoe Wei and Lilian WU)
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