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The concept of backpropagation in neural networks actually occurs in the brain?

I recommend Yoshua Bengio's recent works. E.g.: https://arxiv.org/abs/1502.04156 and his slides from the NIPS 2016 Brains and Bits workshop. Also, Timothy Lillicrap's work: http://www.nature.com/...
Memming's user avatar
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4 votes

The concept of backpropagation in neural networks actually occurs in the brain?

Not in the same sense as in artificial neural networks. Importantly, there is no biological mechanism for errors to be back-propagated further than a single cell/synapse. You can look into spike ...
Bryan Krause's user avatar
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1 vote
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The role of PCA (Principal Component Analysis) in recording neurons

Like vkehayas mentions in a comment, they're using it for spike sorting, as you've guessed. This involves both identifying signals from putative neurons (vs noise) and separating different source ...
Bryan Krause's user avatar
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