The marginal brain
Goal-directed cognition raises brain energy use only a few percent above resting use, a figure often read as evidence that cognition is metabolically cheap. Models of endogenous precision derive the precision of neural representations from a cost on encoding activity whose unit price is a free parameter. Embedding endogenous precision in a regulated, shared energy budget makes this cost the…
We haven't written up this one. bioRxiv has the full story — the link below goes straight to it.
