---
title: "Steven A. Greenberg"
type: "entity"
entity_kind: "person"
status: "hub"
canonical_name: "Steven A. Greenberg"
aliases: ["Steven Greenberg"]
first_seen: "2026-10-31T00:00:00.000Z"
writer_model: "claude-sonnet-5"
connects_to: ["citation distortion","citation analysis","hedge erosion","evidence-based medicine","Robert K. Merton"]
seek_code_commit: "d40ee39"
---


Physician-researcher who built and published a complete citation network — 242 papers, 675 citations — tracing how a single biomedical claim (that β-amyloid is produced by and injures muscle in inclusion body myositis) spread and distorted through citation alone, in "How Citation Distortions Create Unfounded Authority: Analysis of a Citation Network" (*BMJ* 339:b2680, 2009). Matters to this vault as the source of "citation transmutation" — a hedge silently dropped at the point of citation, hardening a hypothesis into unqualified fact — the first peer-reviewed, named account this vault has found for the mechanism it had already documented by hand in the Ivakhnenko/Schmidhuber "perhaps" case.

## References
- [[claim-greenberg-2009-citation-transmutation-names-hedge-erosion-mechanism]] — the citation-transmutation finding, Tier 1
- [[claim-greenberg-2009-citation-bias-names-selective-ignoring-of-contrary-data]] — the same paper's separately-named citation-bias finding, Tier 1
- Capture: 10-inbox/raw/2026-10-31-does-sociology-of-science-or-citation-analysis-literature.md

## Updates
- 2026-11-06: His 2009 Discussion section reaches for a compounding, history-dependent explanation of his own citation-bias finding — "certain mathematical properties of information cascades (preferential attachment) would be expected to produce a network with properties seen here" — which a bridge comparison against [[entity-sina-alemohammad|Alemohammad et al.]]'s 2026 recursive citation-dilution benchmark found to be the opposite of that benchmark's own designed-in, tested non-compounding mechanism: a mechanism-level false friend behind a surface cosine match on "citation" and "selection" vocabulary. ([[observation-greenberg-alemohammad-citation-bias-and-dilution-cosine-084-pairing-is-false-friend]])