That's not the only study that concluded that your cognitive abilities decline when using LLMs. There have been at least eight. Here are two:

"The impact of digital technology, social media, and artificial intelligence on cognitive functions: a review" (2023)

Result:

AI/digital overuse causes "digital dementia" with impairments in memory, attention, and decision-making; multitasking and offloading reduce gray matter in key brain areas, worsening sustained focus and analytical abilities.

"From tools to threats: a reflection on the impact of artificial-intelligence chatbots on cognitive health" (2024)

Result:

Excessive AIC reliance parallels "use it or lose it" brain principles, leading to underutilization and cognitive atrophy; interactive chatbots deepen dependency, risking long-term decline in core skills like memory and problem-solving.

> AI/digital overuse causes "digital dementia" with impairments in memory, attention, and decision-making; multitasking and offloading reduce gray matter in key brain areas, worsening sustained focus and analytical abilities.

This seems like a very dishonest misrepresentation. I guess that’s why you didn’t link to your sources, in the hope people would take your word for it?

> "The impact of digital technology, social media, and artificial intelligence on cognitive functions: a review" (2023)

Here’s the link: https://www.frontiersin.org/journals/cognition/articles/10.3...

I took a look at what you cite as:

> AI/digital overuse causes "digital dementia"

It starts out:

> Digital dementia is a term used to describe the decline in cognitive abilities caused by excessive use of digital technology

It talks a lot about this, and has a lot of citations. All but one of them are pre-AI boom. This is the one that isn’t:

> Overview on brain function enhancement of Internet addicts through exercise intervention: Based on reward-execution-decision cycle

— https://pubmed.ncbi.nlm.nih.gov/36816421/

It has nothing whatsoever to do with AI.

The part of the review that talks about AI does actually mention dementia:

> Notably, there are AI technologies being developed to detect early signs of dementia through speech and language patterns analyzing short snippets of speech to predict and monitor cognitive decline (Kwak et al., 2021)

It also says things like this:

> AI also has profound implications for learning processes. Adaptive learning platforms like Carnegie Learning provide personalized learning experiences tailored to individual needs, which can enhance learning outcomes

This is not the “AI rots our brains” proof you make it out to be.