Synergies Between Intrinsic and Synaptic Plasticity Mechanisms
- 1 April 2007
- journal article
- Published by MIT Press in Neural Computation
- Vol. 19 (4) , 885-909
- https://doi.org/10.1162/neco.2007.19.4.885
Abstract
We propose a model of intrinsic plasticity for a continuous activation model neuron based on information theory. We then show how intrinsic and synaptic plasticity mechanisms interact and allow the neuron to discover heavy-tailed directions in the input. We also demonstrate that intrinsic plasticity may be an alternative explanation for the sliding threshold postulated in the BCM theory of synaptic plasticity. We present a theoretical analysis of the interaction of intrinsic plasticity with different Hebbian learning rules for the case of clustered inputs. Finally, we perform experiments on the "bars" problem, a popular nonlinear independent component analysis problem.Keywords
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