Learning is thought to occur by localized, activity-induced changes in the strength of synaptic connections between neurons. Recent work has shown that induction of change at one connection can affect changes at others (“crosstalk”). We studied the role of such crosstalk in nonlinear Hebbian learning using a neural network implementation of independent components analysis. We find that there is a sudden qualitative change in the performance of the network at a threshold crosstalk level, and discuss the implications of this for nonlinear learning from higher-order correlations in the neocortex.
Hebbian Crosstalk Prevents Nonlinear Unsupervised Learning
Published 2008 in Frontiers in Computational Neuroscience
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- Publication year
2008
- Venue
Frontiers in Computational Neuroscience
- Publication date
2008-02-21
- Fields of study
Biology, Medicine, Computer Science, Psychology
- Identifiers
- External record
- Source metadata
Semantic Scholar, PubMed
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