ChatGPT impact on cognitive abilities: MIT study findings

Published On Thu Jun 26 2025
ChatGPT impact on cognitive abilities: MIT study findings

MIT study finds ChatGPT use may impair brain function and memory

A recent study conducted by the Massachusetts Institute of Technology (MIT) has revealed concerning effects of using ChatGPT, an artificial intelligence software, on brain function and memory. The study investigated the impact of utilizing a large language model (LLM) like ChatGPT to write multiple essays over an extended period.

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Research Methodology

The study involved 54 participants who were divided into three groups for comparison. One group utilized ChatGPT to write essays, another group relied on a search engine, and the third group solely used their own cognitive abilities. The participants underwent several sessions where they completed assignments, and their brain activity was monitored using an EEG monitor to evaluate cognitive engagement and cognitive load.

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Findings from the study indicated that participants using tools like ChatGPT exhibited reduced brain connectivity compared to those relying solely on their cognitive skills. When participants switched from using ChatGPT to brain-only, they displayed weaker neural connectivity and lower cognitive engagement, with decreased ability to recall information from the essays they had written.

Implications and Recommendations

Researchers emphasized the potential negative impact of prolonged use of ChatGPT on learning skills, citing a decrease in cognitive abilities among users. While initial benefits of using such tools were evident, prolonged usage led to decreased performance levels in various aspects, including neural connectivity, linguistic skills, and overall scoring.

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Despite these findings, the study authors acknowledged the need for further research with larger and more diverse participant groups to validate the conclusions. They also suggested exploring longitudinal impacts of tool usage on memory retention, creativity, and writing fluency.

Expert Insights

Dr. Harvey Castro, an ER physician and "AI futurist," emphasized the importance of building cognitive strength before relying heavily on AI tools like ChatGPT. He warned that extended usage of such tools could potentially lead to cognitive atrophy over time, especially in developing brains.

Castro highlighted the significance of periods of "AI-free cognitive development," particularly in education, to maintain and enhance cognitive abilities. While AI tools like ChatGPT offer speed and convenience, they may not always be beneficial for long-term cognitive health.