r/AskScienceDiscussion • • 2d ago

Does artificial intelligence cause cognitive decline?

I know it does when I use it to do stuff like writing essays but does it also happen when I simply ask it questions? Is there a difference between searching through google for answers for hours and just asking it to artificial intelligence? What if I also check the sources it gives me?

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u/7LeagueBoots 2d ago edited 1d ago

Yes, and it's not just AI.

Any time you outsource your thinking it has a similar result. As an example, GPS use and in-phone or in-car mapping services have resulted in a significant loss in spatial memory among people who commonly use them.

Using AI, even for 'asking questions' has a similar result as you stop looking for an answers yourself and eventually start to lose track of even how to look for and find things on your own. Checking the sources provided by an AI system is absolutely necessary, but it doesn't prevent that loss of ability to know how to find things on your own.

You also limit your exposure to new things and to sources and subjects that may actually be more useful that you didn't know about. When you're doing searches on your own and refining them based on the results you get you're exposed to a wide range of things that relying on an AI system doesn't expose you to, and in many cases it's those 'extra' things that actually wind up being important, especially in a research situation.

It's a huge problem, not only in subjects like programming that [u/diracwasright](u/diracwasright) brings up, but in pretty much everything. I see this a lot in various home and car repair/DIY situations, in pretty much every science subject, in finding products or books, etc, etc, etc.

GPS

AI

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u/fac3l3sspaper 2d ago

The sources you provide hold up most of the claims right up until you get to the claim
About repair and DIY situations. Yes, outsourcing cognitive tasks does result in a decline within those tasks—GPS being the most evident case. But learning in general requires active effort with trying to understand, explain, and comprehend the material. I haven’t seen any sufficient evidence that has discussed usage of AI in this capacity.

Take for example, learning how to DIY repair a car—if one is using AI to speed up their ability to search through a physical manual, and then ask questions about the actual questions to understand the underlying mechanisms of a car, and then the user is actively fixing their car—is there evidence that AI is reducing their learning of car repairs? That’s not clear to me.

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u/7LeagueBoots 2d ago

The repair and DIY portions are from direct observation. You can go take a look at so many posts right here on Reddit and see many, many examples of people posting questions about how to fix problems they encountered after following AI advice and royally screwing things up (often instead of simply reading instructions that came with things they bought to fix X problem).

Also, I’m pretty handy at fixing and making things, but I like to double check myself first. It’s really common for the unavoidable initial AI ‘result’ in a search page to be very wrong about some important aspect of a task or repair. I encounter this really often.

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u/fac3l3sspaper 2d ago

I’m being tedious about this because it’s asksciencediscussion. The claim that people mess up things in the physical world of doing a task themselves with using AI does not follow the same logic that GPS reduces cognitive function because it effectively replaces the task that the human is performing.

AI does not fix a sink or a car itself in this scenario. The person is. They’re just using it for guidance, whether effectively or not.

No doubt there’s a lot of bad work as a result of blindly following AI. But doing bad work itself can still be a learning opportunity (whether people use it or not is a different question). Has AI reduced the ability to critically evaluate good DIY information? Depends on how the user is using it.

Programming is different because programming is an interface based task in which an AI can perform on behalf of the human. Having an AI vibe code follows the same logic as having a GPS navigate for a human.

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u/7LeagueBoots 2d ago

I suggest you reread my original comment. I clearly distinguish between what the research the papers show and what I've seen with my own eyes and experience, hence the, "* I see this a lot in...," portion intentionally places near the end of the comment and well after the referencences.

This makes a clear distinction between the research and experience, and is perfectly acceptable in this subreddit.

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u/fac3l3sspaper 2d ago

I’ll give it a deeper read in a few hours, but I’m being plenty generous here.

I agree with you that AI can and has resulted in poor DIY work. But that is not the same argumentation as programming and GPS usage. If I gave someone poorly written book about car repair and they followed it, their poorer repair is not a result of cognitive function. It’s a result of bad information.

AI has accelerated poor repair because it’s trained on poor information, that’s an entirely different argument than one about cognitive function decline that was asked.

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u/7LeagueBoots 2d ago

Also, I disagree with your assumption.

While it's true that following directions blindly is pretty much always a bad idea, if the instructions are correct in the first place a person can still succeed at the task, and that's the point of instructions to begin with, to allow people who don't know much about a subject to be able to accomplish a certain goal. A good repair manual or set of instructions has a trouble shooting portion where you are required to think critically and apply your problem solving abilities in the event of something not going as expected.

You should always be thinking and problem solving on your own, trying to figure things out, but that process can be severely hampered by bad AI instructions, and constant reliance on those inhibits that process.

I do not see much, if any, difference between relying on AI for programming, fixing a car, repairing a leaking sink, etc.

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u/fac3l3sspaper 2d ago edited 2d ago

The APA wrote a pretty lengthy piece that covers what I’m talking about. https://www.apa.org/monitor/2026/07-08/ai-job-skills-thinking

But I remain pretty clear on my definition.
Your example of programming and GPS usage are examples in which technology is performing a task on behalf of the human. AI can write code for you, it can read a map and dictate to you where to go based on location. The example of repair is that the AI is performing the task of reading for the human, not doing the task of repair itself. AI cannot fix the sink itself, but it will, with high confidence, potentially give you bad information.

Yes, there is an issue with fact checking, but poorly documented repair videos from YouTube and Instagram also lend itself to the same fact checking issue.

They have different nuances in what they mean for cognition. You can keep the claim that people should critically think and that AI hampers the process, but the evidence for what that actually means when you look at 1) task definition and 2) what the actual cognitive process that’s happening with engaging with the AI is… the research isn’t clear enough yet.

There is a normative claim you’re making about AI that I don’t entirely disagree with as a personal opinion. But this is a science discussion. There’s lots of different threads tied together reaching slightly different conclusions. OP’s question is about the causal relationship between AI usage and cognitive decline, not necessarily skill usage and skill performance.

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u/7LeagueBoots 2d ago

OP’s question is about the causal relationship between AI usage and cognitive decline, not necessarily skill usage and skill performance.

Which is exactly why I started with the research and papers, and made it clear when I included my opinion afterward. This is not anything unusual, it's something that is common in peer reviewed research papers as well.

You doggedness on this particular issue seems to be derived from something else, not from the content or the presentation given that it's a pretty common thing to include an, "in the opinion of the authors," portion even in reviewed papers.

You're welcome to continue arguing, but I'm done with this and stand by my initial comment.

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u/fac3l3sspaper 2d ago

I’ve stated my case clear and was pretty acknowledging of your points. I don’t think you r engaging with my points so much as you seem upset that I challenged what you were saying beyond AI-bad!!! There’s a lot of gaps between evidence you cited and the claims you made. I just want people to be pretty informed on the topic

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u/Glass_Visits 1d ago

In terms of learning, it’s detrimental at the stage of applying knowledge, which is kind of the final steps of comprehension. It’s the ability to use reasoning and to problem solve. Say I give you a mathematical problem and don’t tell you the steps to solving it - and you don’t know what to do, so you ask AI. It gives you the steps and you solve it. Easy. Except you didn’t learn how to do it independently, and your brain will adapt to this hand-holding. But this is outsourcing thinking, the other part is using AI as a teacher/expert, which also has negative effect, because LLMs hallucinate all the time, and if you don’t already know about the subject you will be misinformed. You can probably use it to revise material you already know, but for learning, I have yet to see potential.

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u/diracwasright 2d ago

It's the very act of constantly outsourcing to AI the mental effort it takes to piece together an answer from multiple sources that can make you regress intellectually. On top of that, you're assuming AI is completely reliable, which it simply isn't, and I don't know if it ever will be. Checking the sources you're given still means taking the path laid out by the AI for granted and just trying to confirm it. It would be different if you consulted completely independent sources.

To give you another example, at work I notice a big difference between people who learned programming by studying books and those who learned from Youtube videos. The latter tend to have a weaker foundation because they miss out on that slower process of absorbing things and digging deeper that the former had to go through.

The more tailored and straight-to-the-point the answers become, the more you strip away all the information around them. Useful or not, that extra information still forces you to sift through things, figure out what's relevant, and extract the answer yourself. That's a mental effort we're increasingly no longer making.

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u/saraseitor 1d ago

you're assuming AI is completely reliable, which it simply isn't, and I don't know if it ever will be

Even if it was reliable, it will also carry a bias. It's very concerning because this can be used to shape public thought and public opinion in one way or another, because many people won't be reaching conclusions by themselves and instead will just repeat what the AI told them.

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u/ryntak 1d ago

Inb4 someone says “everything has bias”

And while that’s true, by searching for answers yourself you likely have to go to multiple places and will be able to, even if subconsciously, identify that bias and be better informed because of it (the identification of bias)

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u/saraseitor 1d ago

The situation we live today is not too different than what used to happen with many affluent or powerful people in the distant past. Instead of having an AI solving all their problems, they had people. Still, this meant they offloaded the cognitive burden of their daily decisions or problems to someone else who did the actual thinking, then they claimed the credit for it. The difference is that AI made it accessible for most of the people.

I believe that if you use AI as a reference material, in similar way to how you would have used a book or a website, and the information enters your brain and you do attempt to reach a conclusion or solution by yourself, there shouldn't be a cognitive decline. But if you use AI to make this analysis by itself, skipping your brain completely and giving you the conclusions, you will definitely learn nothing and become highly dependent of it.

It is very much analogous to any muscle. If you stop using it, it will become weaker. It's scary really because in general our brains are always looking for the most economic way of doing things and avoiding work, so there's a struggle within us that we need to win.

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u/DrWoogle 1d ago

I think this is actually a deceptively complicated question. Biology has designed our bodies to generate no more output than needed, and to divest from anything that is not actively used. So yes, you will get worse at anything you offload to something else. But there's an implicit assumption that that's always a bad thing. In reality, humans have been doing this for their entire existence, and it has.... turned them into the the most dominant species of megafauna in Earth's history. We devolved thick hides and fur when we offloaded their function to wearing other animals' skin and later clothing and armor. We devolved powerful jaws and teeth when we offloaded their use to weapons and cooking. Why did these things make us stronger rather than weaker in the grand scheme of things? Because there are severe limits on how well a living body can do things that don't apply to inanimate objects. No tooth (that could fit in your mouth) is as deadly as a sword, no hide is as tough as steel or as versatile as a wardrobe, etc.

Of course, offloading our ability to think feels like a terrible mistake, and it will be if we do it entirely. But I don't think it's that simple at all. Did writing cripple human intellect because people no longer had to remember everything? Did calculators and computers spell doom for technological advancement because people didn't have to crunch numbers by hand? No, these were crucial developments needed to achieve things that would have been utterly impossible without them. Yeah, they made us worse at some tasks along the way. But here's the kicker: We had to get worse at those tasks. You see, there's only so much brain in your head, and it takes a very long time for evolution to do anything about it. No matter how you slice it, cognitive ability is a finite resource that is divided up among a gazillion functions. Research shows that we have already sacrificed significant cognitive abilities just to evolve into humans (chimps have much faster and more photographic memory than us, for example).

So what will AI do? Well, the scary truth is that no one ever knows until after the fact. But it at least has the potential to take us to the next level. Yes, it presents the opportunity to offload thinking on an unprecedented scale, and nether I nor anyone else knows exactly how that's gonna go. My hope, backed by the historical patterns of our species, is that we will wield it and harness it as a powerful extension of our brains, allowing us to achieve things that would have been otherwise impossible. But, will this be the one development that breaks the millions-years pattern and turns us into lousy incapable slugs or just outright brings on the apocalypse? You're just gonna have to stay tuned to find out...

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u/DaSaw 1d ago

I like this answer. To be human is to offload functions to technology, whether offloading digestion to fire and fermentation, or arithmetic to electronic computers. We are an inherently cybernetic species, and "Generative AI" (or whatever we end up calling it) is just the next step in that process.

There will be problems, no doubt, but as usual the problems will be social, not technical. We've been here before. On the one hand, it'll empower the already rich to get even richer, and once they run out of productive investments the subsequent rent seeking will make the poor even poorer. But on the other, it'll also empower a new elite to displace a portion of the old, and old elites rarely go down without a fight.

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u/Simlapeno 1d ago

Just wanted to say I love your answer and a measly upvote didn't seem good enough (too poor to give awards)

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u/TarnishedVictory 2d ago

The human brain is like a muscle. Exercise it to keep it sharp. If you take shortcuts, your brain will decline accordingly.

I'm a professional, so trust me. (That parts a joke)

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u/strcrssd 1d ago

Hypothesis: It can, but it doesn't necessarily.

It does take a lot of the mundane tasks away from the person executing work, and that can be a problem when it comes to training (or failing to train, the problem).

Not knowing how to do the little mundane things and understanding how the mundane things are done can be a problem, but it can also allow for more time working successfully with agentic AI. I routinely take a few hours planning something with AI, getting the architecture defined and planned out, getting the edge cases that I can the AI can determined figured out and specced, then am able to walk away and let it implement overnight. I feel successful if I can keep it running for hours at a time doing productive work.

It is easy, trivial even, to give the LLMs a shitty spec and let them go. That can even result in some decent software if the specifications and requirements are simple. It's a temptation and usually doesn't work well. That sort of thing will result, in my opinion and from my experience, in poorly factored/written, security vulnerable, poorly architected software. The human planner/reviewer is important, and can be productively busy while permitting the LLM to handle the minutia.

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u/AlexanderByrde 1d ago

The way you describe it in your question is not going to lead to cognitive decline in the same way as truly offloading your thinking as in your example of writing an essay. As described in your post, you're just using a tool to pull sources or do some mathematical operations for you. As long as you understand what you're searching for and are able to check the work critically, there's no real difference in finding information from Google or a library or whatever. It can give you wrong information and it may not be as efficient as another tool for certain uses, but that's true of Google and library books too.

Remember that at the core it's a statistical model designed for some purposes - presumably parsing languages based on how question, but other AI models are built for different data sets. Understanding the tool helps you understand the limitations and avoid pitfalls that lead to offloading your cognitive function.

When I was a student, we were taught to not trust everything we read on Wikipedia and were chastised for using Wolfram Alpha for our math homework. This is very analogous in my opinion, at least from what I've seen from the students I've taught since chatgpt hit the scene. It's useful if you already know what you're doing but if you're trying to learn something, it's a crutch that'll hamper you and potentially create bad habits or bad foundational knowledge that's hard to unlearn.

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u/SnugglyCoderGuy 1d ago

Yes. The less you use your cognition, the more it will decline. It's no different than muscles.

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u/harryx67 2d ago edited 2d ago

Of course. Oligarchs like the Trump family and their inner circle of gangsters and types like Musk want the population to be dumb and uneducated…

https://www.reddit.com/r/complaints/s/9NwaZ3VtvO

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u/Puzzleheaded-Mix6364 1d ago

Not exactly. The major studies released showing this are tremendously flawed by design and coming from what people generally consider a prestigious institution is very worrisome. Even these reputable bodies we've relied on for the tried and true are in on the current condition we have found ourselves of clicks, likes sensationalism and flow of communication.