CNN: AI’s Effects On The Brain

Omar Jimenez, on The Brief with Jim Sciutto

In a recent CNN¹ interview, MIT’ ²s Dr. Nataliya Kosmyna shared findings from a new study showing that relying solely on AI for tasks like writing can reduce brain activity and memory. The research highlights how overusing AI³ tools like ChatGPT may impact how we think – and why human effort still matters.

Transcript

OMAR JIMENEZ: Meanwhile, a new study from MIT is raising the alarm about how AI impacts learning and how convenience could come at a cost for your brain. The study looked at essay writing across three groups, people using AI, a search engine, or just their own brain power. That last group, no tools at all, showed the strongest brain activity plus better memory recall. They were followed by the search engine users and in last place, people relying on AI.

Now, as students and workers become more and more dependent on tools like ChatGPT, it does raise a lot of questions about the future of how we think.

Joining me now is Nataliya Kosmyna lead author on the study. Thank you for being here. Can you just explain what you learned from this study? Did it surprise you?

(https://www.media.mit.edu. Acesso em 21.07.2025. Adaptado)

GLOSSÁRIO:

¹. CNN: canal de noticiário na televisão e mídias.

². MIT: Massachusetts Institute of Technology, uma universidade de pesquisa nos Estados Unidos.

³. AI (artificial intelligence): inteligência artificial.