31/08/2026
THOUGHTS?
🧠🤖 What happens to your brain when ChatGPT starts doing some of the thinking for you?
MIT Media Lab researchers studied 54 people while they wrote essays, using EEG to track how their brains worked during the task.
One group used ChatGPT, another used Google Search, while a third had to write with no outside tools.
The difference was clear.
People writing on their own showed the strongest and widest brain connectivity. Search users came next. ChatGPT users showed the weakest connectivity during the task.
The ChatGPT group also had more trouble quoting from essays they had written only minutes earlier and reported feeling less ownership over their work.
In a final session, some people who had used ChatGPT in the earlier sessions had to write without it. Researchers still found weaker patterns of brain connectivity in that group, which helped lead them to the idea of “cognitive debt.”
The idea is simple: when a tool takes over part of the work involved in thinking, you may spend less mental effort on the task yourself.
But this study does not show that ChatGPT damages your brain or makes you less intelligent. The researchers explicitly warn against those claims. The study is also small, focused only on essay writing, and has yet to complete peer review. Only 18 people took part in the fourth session.
So the interesting question may be less about whether we should use AI, and more about when we use it.
If ChatGPT gives you the answer before you have tried to form one yourself, what part of the learning process are you giving up?
What did you think of this one? 🤔💬
