Publication
A. A. Lazar and
E. A. Pnevmatikakis
Consistent Recovery of Sensory Stimuli Encoded with MIMO Neural Circuits
Computational Intelligence and Neuroscience , Hindawi Publishing Corporation , February 2010 , Article ID 469658, Special Issue on Signal Processing for Neural Spike Trains
Keywords:- sensory stimuli time encoding mimo mimo neural circuits stimulus reconstruction
BibTex DOI PDF Pubmed Central
We consider the problem of reconstructing finite energy stimuli encoded with a population of spiking leaky integrate-and-fire
neurons. The reconstructed signal satisfies a consistency condition: when passed through the same neuron, it triggers the same
spike train as the original stimulus. The recovered stimulus has to also minimize a quadratic smoothness optimality criterion. We
formulate the reconstruction as a spline interpolation problem for scalar as well as vector valued stimuli and show that the recovery
has a unique solution. We provide explicit reconstruction algorithms for stimuli encoded with single as well as a population
of integrate-and-fire neurons. We demonstrate how our reconstruction algorithms can be applied to stimuli encoded with ONOFF neural circuits with feedback. Finally, we extend the formalism to multi-input multi-output neural circuits and demonstrate
that vector-valued finite energy signals can be efficiently encoded by a neural population provided that its size is beyond a
threshold value. Examples are given that demonstrate the potential applications of our methodology to systems neuroscience
and neuromorphic engineering.
Consistent Recovery of Sensory Stimuli Encoded with MIMO Neural Circuits
Computational Intelligence and Neuroscience , Hindawi Publishing Corporation , February 2010 , Article ID 469658, Special Issue on Signal Processing for Neural Spike Trains
Keywords:- sensory stimuli time encoding mimo mimo neural circuits stimulus reconstruction
BibTex DOI PDF Pubmed Central
Reference
@article{LAP09e,
author = "A. A. Lazar and E. A. Pnevmatikakis",
title = "Consistent Recovery of Sensory Stimuli Encoded with MIMO Neural Circuits",
year = 2010,
journal = "Computational Intelligence and Neuroscience",
publisher = "Hindawi Publishing Corporation",
month = "Feb",
keywords = "sensory stimuli, time encoding, mimo, mimo neural circuits, stimulus reconstruction"
}