BETA RELEASE

Summary

A pre‑review MIT Media Lab study finds ChatGPT users show lower brain activity and poorer essay performance compared to Google Search or no‑AI groups, raising concerns about critical‑thinking erosion.

Key quotes

“What really motivated me to put it out now before waiting for a full peer review is that I am afraid in 6-8 months, there will be some policymaker who decides, ‘let’s do GPT kindergarten.’ I think that would be absolutely bad and detrimental,” she says.
“It was more like, ‘just give me the essay, refine this sentence, edit it, and I’m done,’” Kosmyna says.
“The task was executed, and you could say that it was efficient and convenient,” Kosmyna says.
“Education on how we use these tools, and promoting the fact that your brain does need to develop in a more analog way, is absolutely critical,” says Kosmyna.

Claims using this source

The MIT Media Lab study involved 54 Boston-area participants who wrote SAT‑style essays using ChatGPT, Google Search, or no assistance while their brain activity was recorded via EEG. Results showed the ChatGPT group had the lowest neural engagement and produced highly similar, “soulless” essays, while the Google and brain‑only groups exhibited higher engagement and satisfaction.