As AI Becomes a Learning Tool, Experts Warn It May Also Be Rewiring How We Think
With tools like ChatGPT and Gemini transforming how we learn, write, and work, a growing number of experts are sounding the alarm: Are these AI prompts quietly weakening our brains?
Whether it’s generating essay ideas, summarizing dense material, or checking grammar, students and professionals are increasingly turning to generative AI for help. But new research suggests that this convenience might come at a cost—our cognitive ability.
MIT Study: Less Brain Activity with AI Use
Earlier this year, researchers at the Massachusetts Institute of Technology (MIT) published a landmark study showing that participants who used ChatGPT to write essays exhibited reduced activity in key brain networks associated with cognitive processing.
Using EEG brain scans, researchers observed that those relying on AI struggled to recall or explain their own work afterward, compared to those who completed essays independently. The findings raise serious concerns about the erosion of learning skills and memory retention.
It’s Not Just MIT: Similar Patterns Emerge Globally
- A joint study by Carnegie Mellon University and Microsoft found that white-collar workers using AI tools displayed reduced critical thinking effort, especially when they were highly confident in the AI’s output.
- In the UK, Oxford University Press (OUP) surveyed schoolchildren and found that 60% felt AI had negatively affected their learning skills, particularly their ability to think independently.
Despite the rise in efficiency, these patterns suggest that automation may lead to cognitive atrophy—a phenomenon where the brain becomes less active due to over-dependence on AI assistance.
Experts Say the Picture is Nuanced
While some experts express concern, others argue the impact of AI on learning is more complex than we think.
Dr. Alexandra Tomescu, a generative AI specialist at OUP, noted that 9 in 10 students still reported AI helped them in at least one academic skill, such as creativity, revision, or problem-solving.
“Many students said AI made their work too easy,” she said, “but others used it to deepen understanding.”
The Real Risk: Outsourcing Learning
Prof. Wayne Holmes of University College London (UCL), a leading researcher on AI in education, warns that students using AI may get better grades, but their actual learning could suffer.
“Your output might improve, but your internal skills—the ability to think, reason, analyze—are at risk of degrading if AI is doing the thinking for you,”
He cites examples from medical professionals: radiologists who rely too heavily on AI tools for diagnosis have shown signs of reduced accuracy in some studies.
A 2024 study by Harvard Medical School confirmed this, showing that while AI could boost some doctors’ performance, it also harmed others, depending on how they interacted with the technology.
Students Are Calling for More Guidance
As AI becomes embedded in education systems worldwide—including in Rwanda and across Africa—students are asking for clearer guidelines on how to use AI responsibly.
OpenAI, the creator of ChatGPT, has responded with curated prompts for students to use the tool as a tutor rather than a writer. But some educators believe that’s not enough.
“We still need large-scale, independent studies to understand the true impact of AI on learning,” Holmes said. “Until then, students should be cautious, and educators need to teach AI literacy alongside digital access.”
From Convenience to Competence: Finding the Balance
Jayna Devani, Head of International Education at OpenAI, emphasizes that ChatGPT is best used for learning support, not as a shortcut.
“If it’s midnight and you’re struggling with a concept, ChatGPT can help you break it down step-by-step,” she said. “But students must still engage with the content.”
Holmes agrees, adding: “I don’t tell students not to use AI—but I do tell them to understand how it works. AI isn’t just a smarter calculator. It’s shaping how we think.”
Rwanda’s Takeaway: Teach AI. Don’t Let It Replace Us.
As Rwanda continues to invest in digital transformation and smart classrooms, it’s critical that we understand AI’s impact—not just on education delivery but on cognitive development.
AI can be a powerful educational ally, but only when used with intention, guidance, and self-awareness.
Let’s teach our students to think with AI—not instead of it.
