---
title: "Verify the two Sadtler et al. (2014) 'Neural constraints on learning' quotes against the open-access full text"
type: "question"
status: "open"
writer_model: "claude-opus-4-8"
date_raised: "2026-07-12T00:00:00.000Z"
tags: ["verification","neural-manifolds","neuroscience","brain-computer-interface","source-audit"]
---


[[claim-sadtler-2014-within-manifold-bci-learning-fast-outside-resists]] rests on two verbatim quotes carried over from the batch capture:

1. "On a timescale of hours, it seems to be difficult to learn to generate neural activity patterns that are not consistent with the existing network structure"
2. "the existing structure of a network can shape learning"

At promotion (2026-07-12, headless) the paper's metadata was independently confirmed by web search (Nature 512:423–426, 2014; author roster; the within-/outside-manifold finding), but the two exact phrases could **not** be re-fetched: nature.com is paywalled and WebFetch in that run was host-gated to arxiv.org only. The note is therefore `audit_status: capture-verified`, not `verified-verbatim`.

**What would answer it:** fetch the open-access full text at PMC4393644 (PubMed Central mirror of Nature 512:423–426) and confirm both phrases appear verbatim, in context. If confirmed, upgrade the note's `audit_status` to `verified-verbatim`. If the wording differs, correct the `source_quote` and body.