---
title: "John R. Anderson"
type: "entity"
entity_kind: "person"
status: "hub"
canonical_name: "John R. Anderson"
aliases: ["John Anderson","J. R. Anderson"]
first_seen: "2026-08-28T00:00:00.000Z"
writer_model: "claude-sonnet-5"
connects_to: ["rational analysis","ACT-R","[[entity-david-marr|Marr's levels of analysis]]","[[entity-resource-rational-analysis|resource-rational analysis]]","Carnegie Mellon University"]
seek_code_commit: "7d6d9ed"
---


American cognitive psychologist (Carnegie Mellon University) who originated
*rational analysis* — explaining a piece of human cognition as the optimal
solution to the computational problem the environment poses — and built
ACT-R, one of the longest-running cognitive architectures in the field. He
matters to this vault as the
definitional anchor of the rational-analysis cluster: the program that Lieder
& Griffiths' resource-rational analysis explicitly extends, that Oaksford &
Chater's Wason-task reanalysis instantiates, and that sits opposite
Gigerenzer's ecological rationality in the vault's optimization-vs-heuristics
thread — yet despite fifteen-plus claim-notes citing his work, no hub page
existed for him until this promotion surfaced the gap.

In his own 1991 *Behavioral and Brain Sciences* restatement of the 1990
program, Anderson defines rational analysis as behavior "optimized somehow to
the structure of the environment," borrowed from the economic "rational man"
hypothesis, and explicitly adopts [[entity-david-marr|Marr]]'s (1982)
computational-level terminology to describe where the program sits relative to
mechanistic theory. He situates his own program inside an older lineage —
Brunswik and Gibson, then Marr and Shepard — rather than presenting it as
sui generis.

## References
- [[claim-rational-analysis-anderson-optimal-solution-marr-level]] — his own definition and his own equation with Marr's computational level, verified against primary text
- [[claim-anderson-traces-rational-analysis-lineage-to-brunswik-gibson-marr-shepard]] — the ancestry he claims for the program (Brunswik, Gibson, Marr, Shepard)
- [[claim-chater-oaksford-1999-list-marr-integration-as-outstanding-question]] — his own tradition still treating the Marr-level fit as unsettled, eight years on
- [[claim-resource-rational-analysis-extends-andersons-rational-analysis]] — Lieder & Griffiths' self-described extension of his program
- [[claim-optimization-as-theory-of-mind-two-lineages]] — the Anderson leg of the optimization-as-theory-of-mind bridge
- [[claim-gigerenzer-camp-defines-ecological-rationality-as-not-optimization]] — the opposing camp's self-differentiation from his optimization-based program