The brains of people writing an essay with ChatGPT are less engaged than are those of people blocked from using any online tools for the task, a study finds1. The investigation is part of a broader movement to assess whether artificial intelligence (AI) is making us cognitively lazy.
Computer scientist Nataliya Kosmyna at the MIT Media Lab in Cambridge, Massachusetts, and her colleagues measured brain-wave activity in university students as they wrote essays either using a chatbot or an Internet search tool, or without any Internet at all. Although the main result is unsurprising, some of the study’s findings are more intriguing: for instance, the team saw hints that relying on a chatbot for initial tasks might lead to relatively low levels of brain engagement even when the tool is later taken away.
Echoing some posts about the study on online platforms, Kosmyna is careful to say that the results shouldn’t be overinterpreted. This study cannot and did not show “dumbness in the brain, no stupidity, no brain on vacation”, Kosmyna laughs. It involved only a few dozen participants over a short time and cannot address whether habitual chatbot use reshapes our thinking in the long-term, or how the brain might respond during other AI-assisted tasks. “We don’t have any of these answers in this paper,” Kosmyna says. The work was posted ahead of peer review on the preprint server arXiv on 10 June1.
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