Overview
- Researchers say habitual cognitive offloading to chatbots can reduce mental practice that keeps neural circuits active, and several small studies report weaker recall and lower task-related brain activity for AI users.
- A large American-British study of 1,222 people, currently under peer review, found short-term performance gains on arithmetic and reading tasks but later declines in results and willingness to persist when AI was not available.
- An MIT experiment reported that students who used ChatGPT showed substantially lower brain activity and poorer recall days later, a finding experts describe as worrying though limited in scale and peer review.
- Major AI firms have begun adding user-facing safeguards such as Socratic or guided-learning modes in ChatGPT and Gemini and explicit reminders in Microsoft Copilot to prompt reflection and reduce passive reliance.
- Scientists and clinicians warn that definitive answers require large, long-term studies and say the immediate policy and education steps should focus on teaching active use of AI and funding longitudinal research.