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MIT study suggests people outsourcing their work to AI are getting stupider

If someone or something does all your work for you then inevitably you're going to loose muscle memory and cognitive skills that took you ages to build up.

Key takeaways

  • In a new paper currently awaiting peer review, researchers from the school's storied Media Lab documented the vast differences between the brain activity of people who using ChatGPT to write versus those who did not.
  • Some have even stopped taking their psychiatric medication because the chatbot told them to.
Cite or link to this article

Griffin, M. (2025) 'MIT study suggests people outsourcing their work to AI are getting stupider', 311 Institute, 29 June. Available at: https://www.311institute.com/mit-study-suggests-people-outsourcing-their-work-to-ai-are-getting-stupider/ (Accessed: 1 October 2026).

A few months after researchers at Microsoft discovered that relying on Artificial Intelligence (AI) to do things for you too much significantly hurts your critical thinking skills scientists at MIT have found some startling results in the brain scans of ChatGPT users, adding to the growing body of evidence suggesting that AI is having a serious — and barely-understood — impact on its users' cognition even as it explodes in popularity worldwide.

In a new paper currently awaiting peer review, researchers from the school's storied Media Lab documented the vast differences between the brain activity of people who using ChatGPT to write versus those who did not.

The research team recruited 54 adults between the ages of 18 and 39 and divided them into three groups: one that used ChatGPT to help them write essays, one that used Google search – which itself is now becoming more of an Answer engine than a search engine - as their main writing aid, and one that didn't use AI tech. The study took place over four months, with each group tasked with writing one essay per month for the first three, while a smaller subset of the cohort either switched from not using ChatGPT to using it — or vice versa — in the fourth month.

As they completed the essay tasks, the participants were hooked up to electroencephalogram (EEG) machines that recorded their brain activity. Here's where things get wild: the ChatGPT group not only "consistently underperformed at neural, linguistic, and behavioral levels," but also got lazier with each essay they wrote; the EEGs found "weaker neural connectivity and under-engagement of alpha and beta networks." The Google-assisted group, meanwhile, had "moderate" neural engagement, while the "brain-only" group exhibited the strongest cognitive metrics throughout.

These findings about brain activity, while novel, aren't entirely surprising after prior studies and anecdotes about the many ways that AI chatbot use seems to be affecting people's brains and minds.

Previous MIT research, for instance, found that ChatGPT "power users" were becoming dependent on the chatbot and experiencing "indicators of addiction" and "withdrawal symptoms" when they were cut off.. A few months later, The Guardian found in an analysis of studies like that one that researchers are growing increasingly concerned that tech like ChatGPT is making us stupider, and a Wall Street Journal reporter even owned up to his cognitive skill loss from over-using chatbots.

Beyond the neurological impacts, there are also lots of reasons to be concerned about how ChatGPT and other chatbots like it affects our mental health. As other reporters recently discovered in a recent investigation many users are becoming obsessed with ChatGPT and developing paranoid delusions into which the chatbot is pushing them deeper. Some have even stopped taking their psychiatric medication because the chatbot told them to.

"We know people use ChatGPT in a wide range of contexts, including deeply personal moments, and we take that responsibility seriously," OpenAI told us in response to that reporting. "We’ve built in safeguards to reduce the chance it reinforces harmful ideas, and continue working to better recognize and respond to sensitive situations."

Add it all up, and the evidence is growing that AI is having profound and alarming effects on many users — but so far, we're seeing no evidence that corporations are slowing down in their attempts to injecting the tech into every part of society.

FAQ

Why does this matter?

If someone or something does all your work for you then inevitably you're going to loose muscle memory and cognitive skills that took you ages to build up.

Matthew Griffin

About the author

Matthew Griffin Founder, 311 Institute

Matthew Griffin is a multi-award winning Futurist and expert in Disruption and Innovation, Geopolitics, Leadership, and Technology, who NASA have described as a "walking encyclopaedia of the future" and a "futurist Polymath."

Read full bio

Matthew Griffin is a multi-award winning Futurist and expert in Disruption and Innovation, Geopolitics, Leadership, and Technology, who NASA have described as a "walking encyclopaedia of the future" and a "futurist Polymath." 15-time best selling author of the "Codex of the Future" series, Matthew is the Founder and Futurist in Chief of the 311 Institute, a global Futures and Deep Futures advisory firm working with royal households, world leaders, G7, G20, and G77 governments, NGOs, and multi-national mid and mega cap firms to help them explore, shape, and lead the next 50 years of business and society.

An award-winning YouTube creator with over a million followers, with an unrivalled global reach and impact, Matthew is a highly sought-after international keynote speaker, lecturer, and mentor who collaborates with global leaders through the United Nations Alliance of Civilizations (UNAOC) and United Nations General Assembly (UNGA) to shape pivotal initiatives such as the UN’s AI for Humanity program, the United Nations Conference of the Parties (UN COP), and the World Economic Forum in Davos.

As the former Global Head of Cloud, National Security, and Enterprise Sales for companies including Atos, Dell-EMC, and IBM, Matthew has a proven track record of building multi-billion dollar business units and turning failing divisions into market leaders. His ability to identify, analyse, and communicate the implications of hundreds of emerging technologies and trends is unparalleled, and his insights are trusted by many of the world’s most respected organisations, including ABB, Accenture, Adidas, AON, ARM, BCG, Centrica, Citi, Coca-Cola, Dentons, Deloitte, Dow Jones, EY, Google, KPMG, Lego, Legal & General, LinkedIn, Microsoft, PepsiCo, Qualcomm, RWE, Samsung, Siemens AG and Siemens Energy, T-Mobile, UBS, VISA, Walmart, Workday, Worldpay and many others.

Regularly featured in the global media including the AP, BBC, Bloomberg, CNBC, Discovery, Forbes, Khaleej Times, Telegraph, TIME, ViacomCBS, WIRED, and the WSJ, Matthews mission is to help organisations create a fair and sustainable future whose benefits are shared by everyone irrespective of their ability, background, or circumstances.

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Sources and further reading

  1. 2506.08872v1 arxiv.org
  2. The Guardian found theguardian.com
  3. even owned up wsj.com

Source: first published by the 311 Institute on 29 June 2025. Cite as: Griffin, M. (2025). MIT study suggests people outsourcing their work to AI are getting stupider. 311 Institute. https://www.311institute.com/mit-study-suggests-people-outsourcing-their-work-to-ai-are-getting-stupider/

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