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IBM's cognitive computing chip functions like a human brain, heralds our demise (video)
After having created a supercomputer capable of hanging with Jeopardy's finest, IBM has now taken another step toward human-like artificial intelligence, with an experimental chip designed to function like a real brain. Developed as part of a DARPA project called SyNAPSE (Systems of Neuromorphic Adaptive Plastic Scalable Electronics), IBM's so-called "neurosynaptic computing chip" features a silicon core capable of digitally replicating the brain's neurons, synapses and axons. To achieve this, researchers took a dramatic departure from the conventional von Neumann computer architecture, which links internal memory and a processor with a single data channel. This structure allows for data to be transmitted at high, but limited rates, and isn't especially power efficient -- especially for more sophisticated, scaled-up systems. Instead, IBM integrated memory directly within its processors, wedding hardware with software in a design that more closely resembles the brain's cognitive structure. This severely limits data transfer speeds, but allows the system to execute multiple processes in parallel (much like humans do), while minimizing power usage. IBM's two prototypes have already demonstrated the ability to navigate, recognize patterns and classify objects, though the long-term goal is to create a smaller, low-power chip that can analyze more complex data and, yes, learn. Scurry past the break for some videos from IBM's researchers, along with the full press release.
The Thinking Machines flashes back to 1968 for a lesson in computer logic, sideburns (video)
Another dusty gem's emerged from the vintage gold mine that is AT&T's Tech Channel archive, and this one's packed full of useful information and some classic Jetsons-style animation. The Thinking Machines pits man against computer to explain how the things reason, and it does so with a soundtrack that's straight out of, well, 1968. Unsurprisingly, the film's populated by giant, button-laden switchboards, early computer graphics, ladies sporting beehives, and gents rocking unfortunate facial hair, but if that doesn't do it for you, it also offers genuine pearls like this: "Best of all, they never get bored. Like other machines, they can do the same monotonous chores all day long without complaining." Someone should tell that to the disgruntled Roomba residing in our hall closet. Check out the full video in all its dated glory after the break.
Scientists study how the brain thinks about virtual avatars
This is fascinating stuff to think about over the weekend -- New Scientist has an article (sent to us by quite a few readers -- thanks!) about how we perceive our virtual selves in video games like World of Warcraft. A group of scientists at Dartmouth University hooked a few WoW players up to an MRI recently, and they found that when asked to describe themselves and their virtual avatars, the same areas of the brain activated -- areas normally suited to "self-reflection and judgement." In other words, you think about your avatar the same way you think about yourself. They found nearly no difference in the way the brain activated when subjects considered themselves and their avatars. But when you make the split between virtual and real worlds (including your friends in both), the brain's center for imagination tends to light up whenever you consider the virtual world. You've got the normal parts of your brain working when thinking about yourself or others, but when you add in the virtual component, the imagination center lights up as well.
Yogg-Saron in blues
This story's from last week, but I love it anyway -- over at the Greedy Goblin, Gevlon's guild was getting a little tired of all of the achievement-checking and gear requirements for endgame raiding, and so they set out to do something that many experienced raiders might admit seems impossible: take down Yogg-Saron with nothing but blues on. That means no epics at all -- no epic gear, dropped or crafted, no epic enchants, no epic gems. They did use profession bonuses, but everyone should have access to those by now (all it takes is money, and all that takes is time). And of course, they did it: toppled Yoggy with the group you see on the page there. The combat log is also posted, and it's about what you'd expect: none of the damage numbers are crazy high, but the group works so well together and plays so evenly that they get it done. That's the message to be taken away here: gear is nice, but nothing will get you farther than a well-oiled group of solid players.
Tetris players found to have greater brain efficiency, thicker cortex and better hair
You just knew all that Tetris playing you did as a kid yesterday was good for you, huh? A new study published by the big thinkers at Mind Research Network has found that "practicing Tetris" can actually improve brain efficiency and lead to a thicker cortex in other areas of the tabula rasa. In short, the study was done in order to show that the brain can change with stimulation, and that "a challenging visuospatial task has an impact on the structure of the cortex." Of course, this is far from the first published report to use the quarter century-old title as its testing tool, but it's certainly one of the best for getting your mum and pop to believe gaming really is good for the gord. Hit up the read links below for all the details -- you know they'll be firing off questions when you hit 'em with this.[Image courtesy of BumpyBrains]Read - Tetris study [PDF]Read - Press release
Researchers develop a robot that reads your intentions, says you're 'thick'
Robots won't be able to wrest control of the planet from us silly humans until they learn how to collaborate. Sure, they can mow the lawn or mix a drink, but only when you give 'em explicit instructions. Luckily for our future robot overlords, The EU's JAST project is studying the ways that humans work together, in the hope that it can someday teach robots to anticipate the actions and intentions of a human partner. "In our experiments the robot is not observing to learn a task," explains Wolfram Erlhagen from the University of Minho. "The JAST robots already know the task, but they observe behavior, map it against the task, and quickly learn to anticipate [partner actions] or spot errors when the partner does not follow the correct or expected procedure." This bad boy has a neural architecture that mimics what happens when two people interact, and the video below shows the rather melancholy automaton trying to convince his human partner to pick up the right pieces to complete a simple task. Watch it in action after the break.
Targeted muscle reinnervation enables your brain to control prosthetic limbs
If you're suddenly overcome with an eerie feeling of déjà vu, fret not, as this idea has certainly been brainstormed before. As scientists aim to make prosthetic limbs more user-friendly, a certain physiatrist at the Rehabilitation Institute of Chicago and professor at Northwestern University has developed a technique that enables artificial arms to react directly to the brain's thoughts. The process, dubbed targeted muscle reinnervation (TMR), works by rewiring residual nerves that once carried information to the now-lost appendage to the chest; when the person thinks to move their arm, the chest muscle contracts, and with the help of an electromyogram (EMG), the signal is "directed to a microprocessor in the artificial arm which decodes the data and tells the arm what to do." Currently, "only" four movements are possible after the procedure, but studies are already in full swing to determine if TMR could be used to bless future patients with an even fuller of range of motion.[Image courtesy of ScienceDaily]
