MIT study finds ChatGPT use may impair brain function and memory over time
Using ChatGPT on a long-term basis may have detrimental effects on brain function, according to a recent study conducted by researchers at the Massachusetts Institute of Technology (MIT). The study involved 54 participants who were divided into three groups to assess the impact of using a large language model (LLM) like ChatGPT on cognitive abilities.
Participants in the study were asked to write essays using different tools. One group used ChatGPT, the second group used a search engine, and the third group relied solely on their own brains. Over a four-month period, the participants completed multiple essay assignments using their assigned tools.
Throughout the study, researchers monitored the participants’ brain activity using an EEG monitor to measure cognitive engagement and cognitive load. The results showed that the group using ChatGPT exhibited weaker neural connectivity compared to the other groups. This decrease in neural connectivity was linked to lower cognitive engagement and reduced ability to recall information from the essays they had written.
In a subsequent session where participants were asked to switch tools, those who transitioned from using ChatGPT to relying solely on their brains showed weaker neural connectivity and poorer cognitive engagement. Conversely, participants who switched from using their brains to using ChatGPT had higher memory recall and greater cognitive engagement.
The researchers concluded that long-term use of LLMs like ChatGPT could lead to a decrease in learning skills and cognitive abilities. They emphasized the importance of building cognitive strength before relying heavily on AI tools. The findings from the study have been uploaded to a preprint service and are awaiting peer review.
While the study highlighted the potential negative impact of using LLMs on brain function, it also pointed out the need for further research with larger and more diverse participant groups. Future studies could explore the longitudinal effects of tool usage on memory retention, creativity, and writing fluency.
Dr. Harvey Castro, an ER physician and AI futurist, underscored the importance of this study as a wake-up call for younger brains. He noted that while AI tools like ChatGPT can boost productivity, they may come at the cost of decreased neural engagement and cognitive abilities over time. Castro emphasized the need for periods of AI-free cognitive development to promote strong foundational skills.
In conclusion, the study sheds light on the potential drawbacks of long-term reliance on AI tools like ChatGPT and highlights the importance of maintaining cognitive strength through independent thinking and problem-solving. It serves as a reminder to strike a balance between leveraging AI for productivity and preserving cognitive abilities for optimal brain function.
