They discovered that subjects who used ChatGPT over a few months had the lowest brain engagement and “consistently underperformed at neural, linguistic, and behavioral levels,” according to the study.
The study found that the ChatGPT group initially used the large language model, or LLM, to ask structural questions for their essay, but near the end of the study, they were more likely to copy and paste their essay.
Those who used Google’s search engine were found to have moderate brain engagement, but the “brain-only” group showed the “strongest, wide-ranging networks.”
The findings suggest that using LLMs can harm a user’s cognitive function over time, especially in younger users. It comes as educators continue to navigate teaching when AI is increasingly accessible for cheating.