Horace Barlow

British sensory neuroscientist (1921–2020) whose ideas surface in the vault along two independent threads, which is what earns him a hub rather than a mention. The 1961 efficient-coding / redundancy-reduction hypothesis holds that early sensory systems recode input to strip statistical redundancy — confirmed against the 1961 primary in 2026-07 — and lends its name to a 2021 self-supervised ML loss. (The "factorial code" label and center-surround-as-mechanism reading often bundled with "Barlow 1961" are later accretions, not in that chapter; see the correction notes below.) Separately, the 1965 divisive-inhibition model of retinal direction selectivity (with W. R. Levick) is one of the vault's cases of a computational circuit theory whose synaptic wiring was confirmed connectomically only decades later — here, ~46 years later, by Briggman et al. in 2011.

References

• claim-barlow-1961-efficient-coding-removes-sensory-redundancy — the 1961 redundancy-reduction hypothesis (and its Barlow Twins descendant)
• claim-barlow-1961-primary-states-redundancy-reduction-in-his-own-words — the 1961 primary read directly: the core, confirmed at Tier 1
• claim-barlow-1961-does-not-name-factorial-code — correction: "factorial code" is not in the 1961 chapter
• claim-barlow-1961-does-not-invoke-center-surround-as-the-redundancy-reducing-mechanism — correction: center-surround is not the 1961 mechanism
• claim-barlow-levick-1965-direction-selectivity-confirmed-briggman-2011 — the 1965 direction-selectivity model, confirmed 2011
• Pattern context: claim-neural-circuit-theories-wait-decades-for-anatomical-confirmation · claim-circuit-theory-vindication-lacks-denominator-survivorship-not-ruled-out