Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-17606
Bartolozzi, C; Nikolayeva, O; Indiveri, G (2008). Implementing homeostatic plasticity in VLSI networks of spiking neurons. In: Institute of Electrical and Electronics Engineers, [et al.]. 15th IEEE International Conference on Electronics, Circuits and Systems, 2008 (ICECS 2008), Malta, St. Julians, 31 August - 3 September 2008. Piscataway, NJ, US, 682-685. ISBN 978-1-4244-2181-7.
Homeostatic plasticity acts to stabilize firing activity in neural systems, ensuring a homogeneous computational substrate despite the inherent differences among neurons and their continuous change. These types of mechanisms are extremely relevant for any physical implementation of neural systems. They can be used in VLSI pulse-based neural networks to automatically adapt to chronic input changes, device mismatch, as well as slow systematic changes in the circuitpsilas functionality (e.g. due to temperature drifts). In this paper we propose analog circuits for implementing homeostatic plasticity mechanisms in VLSI spiking neural networks, compatible with local spike-based learning mechanisms. We show experimental results where a homeostatic control is implemented as a hybrid SoftWare/HardWare (SW/HW) solution, and present analog circuits for a complete on-chip stand-alone solution, validated by circuit simulations.
|Item Type:||Book Section, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Institute of Neuroinformatics|
|DDC:||570 Life sciences; biology|
|Deposited On:||06 Mar 2009 17:04|
|Last Modified:||09 Jul 2012 03:44|
|Publisher:||IEEE Service Center|
|Additional Information:||© 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.|
|Related URLs:||http://www.icecs2008.org/ (Organisation)|
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