A new preprint study from MIT indicates that utilizing AI chatbots can lower brain activity and lead to poorer fact retention. Researchers analyzed the brain waves of college students while they wrote essays using different levels of assistance, including an AI chatbot. The study found that as the level of external assistance increased, brain connectivity patterns diminished significantly. The group using chatbots demonstrated the weakest engagement, with substantial drops in cognitive load measured through dynamic brain activity metrics, suggesting that reliance on such technology might hinder cognitive processes.
Neural connectivity patterns were consistently scaled down with the amount of external support used, showing the brain activity was significantly lower among LLM users.
The LLM cohort exhibited the weakest overall coupling in brain connectivity compared to their peers using a search engine or writing unaided.
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