AI & Cognitive Demand
Emerging, unreviewed finding · Watchlist · 2025
LLM-assisted essay writing shows weaker EEG connectivity and lower reported ownership in a small preprint study
In a preprint, 54 adults complete three essay-writing sessions using an LLM, web search, or no external tool. The LLM group shows the weakest EEG connectivity and reports the lowest ownership of its essays. Only 18 participants complete the fourth crossover session.
Research basis
Small repeated-session EEG experiment with a crossover session. 54 adults completed the first three sessions; 18 completed the fourth crossover session.
What it supports
A preliminary task-specific signal that different writing tools were associated with different neural-connectivity, recall, and ownership patterns.
Boundary
This is a small task-specific study. It does not demonstrate brain damage, generalized cognitive decline, long-term impairment, or effects across workplace tasks. Caution: The study is a preprint and not yet peer-reviewed or published.
BOL relevance
A hypothesis-generating AI and cognition signal that should remain separate from the foundational BOL evidence spine.
Source class
Preprint or emerging research
Role in BOL
Watchlist
Population context
General adult population
Evidence basis
EEG, task performance, recall, and self-reported ownership
Integrity notes
A separate methodological critique is also a preprint and has not been peer reviewed.
Publication version: Version 2.
Publication status last checked 26 July 2026.
No peer-reviewed journal article identified.
Source record checked 26 July 2026.