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What keeps the brain from slipping into chaos? A simple model may explain

https://www.earth.com/science/what-keeps-the-brain-from-slipping-into-chaos-a-simple-model-may-explain/

Two ordinary feedback loops kept a simple model of the visual cortex from turning chaotic, cutting the swings in its activity by 93%.

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DK
Dominik Krzemiński
Reviewed on 29 Oct 2026
10
Evidence
10
Balance
9
Clarity

The article reports a computational study accurately and with commendable restraint. It states up front that this is equations, not brain recordings, and flags missing anatomy (no layers, one inhibitory cell type, squid-based neuron). Numbers are detailed and consistent: 0.325 to 0.024 is indeed about a 93% drop. It candidly notes the model’s irregularity (0.27) falls short of living cortex (0.7–1.0), and that links to epilepsy and schizophrenia are hypothesis only. Weaknesses: the headline implies “steady vision may depend on constant control” more strongly than a simplified model supports, and “ordinary feedback loops” glosses over abstraction.

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