A new study from the MIT Media Lab has found that frequent use of large language models (LLMs) like ChatGPT may lead to reduced brain activity and memory retention during writing tasks.
The research observed 54 participants over four months, using EEG scans to monitor neural engagement as they completed essays with and without AI assistance.
Why does this happen?
This study sheds light on the cognitive costs of overusing AI for everyday tasks. While ChatGPT and other AI writing tools offer convenience, MIT’s findings suggest that relying on them too often may cause users to mentally disengage. Instead of stimulating critical thinking, AI could be encouraging users to outsource their thought processes entirely.
As AI tools become more accessible in schools and workplaces—including in Malaysia—this raises important questions about how to use them responsibly. Rather than completely replacing personal effort, AI should act as a supplement that supports human cognition, not weakens it.
Key Findings from the MIT Study
Researchers divided participants into three groups:
- Those using ChatGPT
- Those using Google Search
- Those writing entirely unaided
Here is what the study revealed
- Lower Brain Activity: EEG scans showed that ChatGPT users had the weakest neural connectivity. In contrast, those who wrote unaided had the highest cognitive engagement.
- Reduced Memory Recall: 83 percent of participants who used ChatGPT were unable to accurately recall specific details or quotes from their own writing, compared to just 11 percent among unaided writers.
- Cognitive Offloading: Participants using AI felt less mental effort was needed. They also showed a tendency to copy and paste content rather than actively write.
- Lasting Effects: When ChatGPT users were later asked to write without any tools, their brain activity remained low, suggesting long-term cognitive impact.
What this means for AI users in Malaysia
The findings are relevant not just in academic settings, but also in professional and creative industries. In Malaysia, where digital adoption and AI use are on the rise, this study serves as a timely reminder that tool reliance should be balanced with mental engagement.
Educators, students, and knowledge workers may benefit from approaches like writing first drafts manually before refining with AI assistance. This helps maintain cognitive activity while still enjoying the benefits of efficiency.
Will this change how you approach writing with AI tools like ChatGPT? Are we trading convenience for long-term thinking ability?
Stay tuned to TechNave.com for more updates.
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