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The Internet Changes Your Brain, Study Shows

The Internet has firmly burrowed its way into our psyches. We think in 140-character bursts. We Google our memory when we can't, for the life of us, remember the name of that guy from 'Ghost.' We meet new people and imagine a reconfiguration of our Facebook friends list. The Internet has fundamentally changed the way we think, and a newly released study may provide hard, scientific proof of what we've always known.

In a recent UCLA study, adults with little Internet wherewithal showed noticeable changes in brain activity after just one week of online exposure. In fact, researchers suggest that the Internet may even help stimulate and enhance cognition in older adults, a finding that could have significant implications for Alzheimer's and dementia research. The study looked at a group of older adults, aged 55 to 78, half of whom used the Internet on a daily basis and half of whom hardly at all. After researchers used an MRI to examine brain activity while subjects performed online searches, the volunteers were sent home. While there, they spent an hour a day performing Web searches, for a total of seven days. Among the novices, researchers found increased activity in the neural regions controlling language, memory, and vision. Perhaps more interestingly, they discovered that after only one week, those with little prior experience displayed brain activity very similar to that of the more savvy users.

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Audio/Video, Computers

'Thought Helmets' Could Enable Voiceless Troop Communication

This won't mark the first time the US government has looked into other means for helping soldiers communicate on the battlefield, but it's one of the first instances where vocal cords aren't even necessary. The US Army has recently awarded a $4 million contract to a coalition of scientists, all of which will soon start developing a "thought helmet" to enable voiceless, secure communication between comrades.

In theory, at least, the helmet will boast a litany of sensors that will hopefully "lead to direct mental control of military systems by thought alone." According to Dr. Elmar Schmoozer, the Army neuroscience overseeing the program, the system will be like "radio without a microphone."

Oh, and don't think for a second that they aren't considering civilian applications as well -- passing along jokes on the boss via telekinesis? Yes, please.

[Via Slashdot]

Computers

Researchers Devise Neural Implant That Learns Over Time


Brain-machine interfaces have done quite a bit in helping handicapped individuals interact with prosthetic limbs, computers and other humans, but a new neural implant concocted at the University of Florida could make all those past devices look archaic.

Put simply, researchers have discovered a method that would enable brain-machine interfaces to "adapt to a person's behavior over time and use the knowledge to help complete a task more efficiently." Until now, the brain was the instrument doing all the talking while the computer simply accepted commands; with this method, "the computer could have a say in that conversation, too."

In all seriousness, this type of learning mechanism could be game-changing in the world of physical therapy, but we hesitate to give something mechanical inside of our body too much free will, ya dig? [Source: University of Florida News via Physorg]

Audio/Video, Cell Phones, Computers

Audeo Neckband Translates Your Thoughts Into Speech


Who wants to waste energy speaking words when just thinking about speaking will do? Audeo -- a neckband that detects nerve impulses sent to the larynx -- will help you do just that. The techo-accessory has previously been demonstrated controlling a motorized wheel chair, but now the scientists behind the device have added "voiceless" speech to its repetoire of tricks.

Ambient Corporation demonstrated a phone conversation where one side of the discussion was not spoken but thought, then converted words and vocalized by a computer. The Audeo could prove to be a boon not only for those who have lost the ability to speak, but those who simply don't want to discuss sensitive or private matters out-loud in public, since presumably one could just think of something and evenutally send it in an e-mail or text message.

The current model only understands 150 English-language different words, and suffers from a noticeable delay between thought and vocalizations.

Don't worry about your secret thoughts getting accidentally transcribed, however, since the device requires a "level above thinking" according to Ambient co-founder Michael Callahan, to actually translate into speech. In other words, you'd have to specifically think about speaking specific sentences for them to get vocalized or transcribed.

Ambient is working on a next gen model already that will have a vocalization engine based on phonemes that will give the device an unlimited vocabulary, but will come at the cost of even slower performance. Check out the video for a demonstration.

From NewScientist (via Engadget)

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Computers

The Computer That Reads Your Mood



Imagine a future where your computer knows when you're feeling stressed and adjusts to you accordingly. The same system can also, say, sense when an air traffic controller is feeling burned out, and pass the next airplane landing on to someone else -- automatically.

Well, with $445,000 from the National Science Foundation, researchers at Tufts University are hoping to make such a system a reality.

The project uses near infrared light to monitor blood flow in the brain. The near infrared light passes through the human body, but is absorbed by oxygenated and deoxygenated hemoglobin in blood cells. Researchers believe that by watching for increased flow of oxygenated blood to certain areas of the brain, they can monitor stress levels. Eventually, these stress levels could be checked automatically by a computer, which would adjust its interface in subtle ways to relieve said stress. (Or just force you off the system if you're doing something life-or-death-threatening like landing planes!)

Researchers made no mention of specifically how the computer might change its interface, only that it would be lightweight changes -- maybe dimmer lighting or fewer onscreen animations? -- to reflect the often subtle and imperfect information they glean from the readings.

From Slashdot and Computer World

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