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connectivity · kosmyna-2025-your-brain-on-chatgpt

Revision d60954b2-58e2-4f6b-88ad-5591b3a53939 · 9/26/2026, 3:08:38 PM UTC
Claim ID
connectivity
Assertion
In an EEG study of 54 Boston-area participants aged 18 to 39 writing essays, brain connectivity was weakest in the group using an LLM, intermediate with a search engine, and strongest with no tools.
Quote
Brain connectivity systematically scaled down with the amount of external support: the Brain‑only group exhibited the strongest, widest‑ranging networks, Search Engine group showed intermediate engagement, and LLM assistance elicited the weakest overall coupling.
Quote language
en
Locator
section: Abstract
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