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  Orientation-selective aVLSI spiking neurons.

Liu, S. C., Kramer, J., Indiveri, G., Delbrück, T., Burg, T. P., & Douglas, R. (2001). Orientation-selective aVLSI spiking neurons. Neural Networks, 14(6-7), 629-643. doi:10.1016/S0893-6080(01)00054-5.

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 Urheber:
Liu, S. C., Autor
Kramer, J., Autor
Indiveri, G., Autor
Delbrück, T., Autor
Burg, T. P.1, Autor           
Douglas, R., Autor
Affiliations:
1Research Group of Biological Micro- and Nanotechnology, MPI for biophysical chemistry, Max Planck Society, ou_578602              

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 Zusammenfassung: We describe a programmable multi-chip VLSI neuronal system that can be used for exploring spike-based information processing models. The system consists of a silicon retina, a PIC microcontroller, and a transceiver chip whose integrate-and-fire neurons are connected in a soft winner-take-all architecture. The circuit on this multi-neuron chip approximates a cortical microcircuit. The neurons can be configured for different computational properties by the virtual connections of a selected set of pixels on the silicon retina. The virtual wiring between the different chips is effected by an event-driven communication protocol that uses asynchronous digital pulses, similar to spikes in a neuronal system. We used the multi-chip spike-based system to synthesize orientation-tuned neurons using both a feedforward model and a feedback model. The performance of our analog hardware spiking model matched the experimental observations and digital simulations of continuous-valued neurons. The multi-chip VLSI system has advantages over computer neuronal models in that it is real-time, and the computational time does not scale with the size of the neuronal network.

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Sprache(n): eng - English
 Datum: 2001-07-09
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1016/S0893-6080(01)00054-5
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Titel: Neural Networks
Genre der Quelle: Zeitschrift
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Seiten: 15 Band / Heft: 14 (6-7) Artikelnummer: - Start- / Endseite: 629 - 643 Identifikator: -