Has this approach been successful for any "lesser" animals? E.g.; has anyone simulated an insect brain system connected to a simulated insect body in a virtual environment? Starting with a mouse brain seems a bit ambitious.
Since I haven't posted on the list before I guess I should introduce myself: I'm Jan Mattsson in Stockholm, Sweden. A software developer by profession, I first became interested in AI when I read "Gödel Escher Bach - an Eternal Golden Braid" many years ago (actually switched from physics to computer science because of it). More recently I read Kurzweil's "The Singularity is near", that brought me here. /JanM -----Ursprungligt meddelande----- Från: J. Storrs Hall, PhD. [mailto:[EMAIL PROTECTED] Skickat: lö 2007-04-28 19:15 Till: agi@v2.listbox.com Ämne: [agi] mouse uploading In case anyone is interested, some folks at IBM Almaden have run a one-hemisphere mouse-brain simulation at the neuron level on a Blue Gene (in 0.1 real time): http://news.bbc.co.uk/2/hi/technology/6600965.stm http://ieet.org/index.php/IEET/more/cascio20070425/ http://www.modha.org/papers/rj10404.pdf which reads in gist: Neurobiologically realistic, large-scale cortical and sub-cortical simulations are bound to play a key role in computational neuroscience and its applications to cognitive computing. One hemisphere of the mouse cortex has roughly 8,000,000 neurons and 8,000 synapses per neuron. Modeling at this scale imposes tremendous constraints on computation, communication, and memory capacity of any computing platform. We have designed and implemented a massively parallel cortical simulator with (a) phenomenological spiking neuron models; (b) spike-timing dependent plasticity; and (c) axonal delays. We deployed the simulator on a 4096-processor BlueGene/L supercomputer with 256 MB per CPU. We were able to represent 8,000,000 neurons (80% excitatory) and 6,300 synapses per neuron in the 1 TB main memory of the system. Using a synthetic pattern of neuronal interconnections, at a 1 ms resolution and an average firing rate of 1 Hz, we were able to run 1s of model time in 10s of real time! Josh ----- This list is sponsored by AGIRI: http://www.agiri.org/email To unsubscribe or change your options, please go to: http://v2.listbox.com/member/?&; ----- This list is sponsored by AGIRI: http://www.agiri.org/email To unsubscribe or change your options, please go to: http://v2.listbox.com/member/?member_id=231415&user_secret=fabd7936
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