MIT Study Finds AI Use Diminishes Critical Thinking Skills

Recent research from MIT indicates that reliance on AI tools like ChatGPT hampers students’ ability to think critically, with educators noting a concerning decline in analytical skills.

According to Dr. Susan Schneider, director of the Center for the Future Mind, “Brain atrophy does occur, and it’s apparent.” Educators observe that students submitting essays with minimal effort or prompts are less engaged and fail to internalize information.

The study involved 54 participants aged 18-39, divided into three groups: those using ChatGPT, those relying on Google Search, and a control group working independently. Over four months, each group wrote four SAT essays. EEG scans revealed that the ChatGPT group exhibited significantly lower brain activity during writing, particularly affecting regions responsible for creativity, memory, and language. Participants also showed less engagement and felt less ownership of their work.

Notably, over time, AI-assisted writers increasingly copied entire sections of text, indicating a decline in active cognitive processing. Furthermore, essays produced with AI were more similar and perceived as “soulless” by educators.

Students in the AI group also struggled to recall their previous work, suggesting weaker memory retention. The study’s lead researcher, Nataliya Kosmyna, warns that developing brains are at the highest risk, especially younger users, as dependence on AI could hinder broader cognitive development.

Experts like Toby Walsh caution against banning AI outright, advocating for its careful integration. Walsh highlights the value AI offers but warns that human cognitive decline may accelerate if dependencies grow.

Longtime educator Murphy Kenefick voiced concerns that students prioritize grades over developing essential skills, a trend he laments as increasingly troubling, especially as AI usage becomes more pervasive.