Man Walks With Aid of Brain-Controlled Robotic Legs: The new device... is controlled by electroencephalogram...
The test subject in the study wore such a cap while standing on a treadmill inside leg braces known as a “robotic gait orthosis.” The subject would imagine walking or standing, and the device was taught to associate each brain activity pattern with the appropriate action. Then, whenever those patterns were encountered, the braces would start or stop walking accordingly.
The researchers also measured leg muscle activity by electromyogram, or EMG, for three conditions: active walking (with the robotic braces powered off), cooperative walking (aided by the braces), and passive walking (with the leg braces making all the movements).
Showing posts with label EEG. Show all posts
Showing posts with label EEG. Show all posts
Wednesday, September 5, 2012
Thursday, July 5, 2012
Brain-Scanning Binoculars Harness Soldiers' Unconscious Minds to Locate Threats
Brain-Scanning Binoculars Harness Soldiers' Unconscious Minds to Locate Threats: Through electroencephalogram (EEG), the device can pick up on a brain signal known as P300 that signifies an unconscious recognition of something visual.
It can take the brain some time to become conscious of things it sees, and when seconds are critical--say, in the case of a convoy barreling toward a buried IED--the Sentinel recognizes the P300 signal imparted by the unconscious perception of that threat and alerts the soldier that he has just seen something significant, trimming the time between his seeing something and actually perceiving the threat.
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