Brain-Like Chip Outstrips Normal Computers

ACM news – 26/11/2012

University of Heidelberg researchers have developed the Spikey chip, which features a neuromatic design that tries to recreate the brain’s hardware using analog circuitry. “On our system, you can physically point to the neuron,” says Heidelberg researcher Karlheinz Meier. The Spikey chip contains 400 “neurons,” or printed circuits. Similar to a real neuron, when the applied voltage reaches a certain level, the capacitor becomes conductive, firing a “nerve signal.” The analog components have variable levels of resistance to simulate the way connections between neurons become stronger or weaker depending on how much they are used. The researchers connected the neurons in different ways to mimic various brain circuits. So far the researchers have modeled six neural networks. “This is as good as you can get in simulating neural architecture,” says Boson University professor Massimiliano Versace. The researchers are currently scaling up Spikey as part of the BrainScales projects. “Instead of 400 neurons we have 200,000,” says Heidelberg researcher Thomas Pfeil. The researchers have printed all of the circuits onto a 20-centimeter silicon wafer, which enables them to incorporate many more connections.

More info here:  New Scientist (11/22/12) Michael Marshall

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2 respuestas a Brain-Like Chip Outstrips Normal Computers

  1. gold account dijo:

    The team is now scaling up Spikey as part of a project called BrainScales . “Instead of 400 neurons we have 200,000,” says team member Thomas Pfeil . The researchers have printed all the circuits onto a single silicon wafer, 20 centimetres across, which allowed them to incorporate many more connections. Next year, they will use it to simulate part of the cortex of a rat brain. From there, they plan to connect six wafers in parallel, simulating over a million neurons, and eventually model a rat’s entire visual cortex.

  2. One thing I’d prefer to say is the fact before obtaining more pc memory, have a look at the machine in to which it can be installed. When the machine is actually running Windows XP, for instance, a memory threshold is 3.25GB. Installing in excess of this would just constitute some sort of waste. Make sure one’s mother board can handle an upgrade quantity, as well. Interesting blog post.

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