ABERDEEN PROVING GROUND, Md. (Dec. 24, 2015) — Electroencephalography, or EEG, has been used for decades to measure voltage fluctuations in different parts of the brain to graph a person’s neural patterns.
IMPORTANCE OF EEG
EEG patterns, or waves, provide insights into what the person is seeing, hearing, thinking and feeling, sort of peering into individual’s mental and emotional state.
Medical facilities use EEGs extensively to test for such things as psychological disorders, brain injuries and monitoring the effects of sedatives and anesthesia.
The U.S. Army Research Laboratory, or ARL, also uses EEGs to help design equipment for Soldiers to help them with complex cognitive tasks, said David Hairston, an ARL neuroscientist here. Continue reading →
ABERDEEN PROVING GROUND, Md. (Nov. 5, 2015) — In a U.S. Army Research Laboratory facility here called “The MIND Lab,” a desktop computer was able to accurately determine what target image a Soldier was thinking about.
MIND stands for Mission Impact Through Neurotechnology Design, and Dr. Anthony Ries uses technology in the lab to decode the Soldier’s brain signals.
Ries, a cognitive neuroscientist who studies visual perception and target recognition, hooked the Soldier up to an electroencephalogram — a device that reads brain waves — and then had him sit in front of a computer to look at a series of images that would flash on the screen.
There were five categories of images: boats, pandas, strawberries, butterflies and chandeliers. The Soldier was asked to choose one of those categories, but keep the choice to himself. Then images flashed on the screen at a rate of about one per second. Each image fell into one of the five categories. The Soldier didn’t have to say anything, or click anything. He had only to count, in his head, how many images he saw that fell into the category he had chosen. Continue reading →