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Abbrev Neurogrid  +
Address Stanford University  +, Clark Center W1.3  +, 318 Campus Drive West  +, Stanford CA 94305-5441  +
CurationStatus curated  +
DefiningCitation  +
Definition A specialized hardware platform that will A specialized hardware platform that will perform cortex-scale emulations while offering software-like flexibility. With sixteen 12x14 sq-mm chips (Neurocores) assembled on a 6.5x7.5 sq-in circuit board that can model a slab of cortex with up to 16x256x256 neurons - over a million! The chips are interconnected in a binary tree by 80M spike/sec links. An on-chip RAM (in each Neurocore) and an off-chip RAM (on a daughterboard, not shown) softwire vertical and horizontcal cortical connections, respectively. It provides an affordable option for brain simulations that uses analog computation to emulate ion-channel activity and uses digital communication to softwire synaptic connections. These technologies impose different constraints, because they operate in parallel and in serial, respectively. Analog computation constrains the number of distinct ion-channel populations that can be simulated–unlike digital computation, which simply takes longer to run bigger simulations. Digital communication constrains the number of synaptic connections that can be activated per second–unlike analog communication, which simply sums additional inputs onto the same wire. Working within these constraints, Neurogrid achieves its goal of simulating multiple cortical areas in real-time by making judicious choices. in real-time by making judicious choices.
Has default formThis property is a special property in this wiki. Resource  +
Has role Instrument manufacture +
Id nlx_97879  +
Is part of Stanford University; California; USA +
Keywords Simulation +, Neuron +, Cortex +, Synapse +, Analog VLSI +
Label Resource:Neurogrid  +
Modification dateThis property is a special property in this wiki. 2 February 2015 08:04:18  +
ModifiedDate 2 February 2015  +
PMID 17959490  +
Page has default formThis property is a special property in this wiki. Resource  +
SuperCategory Resource  +
Supporting Agency National Institutes of Health +
Categories Resource
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*Note: Neurolex imports many terms and their ids from existing community ontologies, e.g., the Gene Ontology. Neurolex, however, is a dynamic site and any content beyond the identifier should not be presumed to reflect the content or views of the source ontology. Users should consult with the authoritative source for each ontology for current information.