Your Brain Is Probably Learning the Wrong Lessons

Why do we blame the wrong things?

You try a new café, love the coffee, and suddenly feel like that specific table, that seat by the window, or even the color of the cup had something to do with the experience. It sounds harmless, but this is exactly how the human brain often works: we connect outcomes to things that had nothing to do with them. 

Now, a new study by Ido Ben-Artzi, under the joint senior supervision of Liron Rozenkrantz of Bar-Ilan University’s Azrieli Faculty of Medicine and Gonda Multidisciplinary Brain Research Center, and Dr. Nitzan Shahar, published on Nature.com, reveals just how deeply this tendency shapes our decisions, and how some people may be far better at resisting it.

The hidden bias in everyday thinking

When we learn from experience, our brain is supposed to answer one simple question:

What actually caused this outcome?

But in reality, we tend to spread “credit” too widely. Instead of focusing only on what mattered, we also attach meaning to irrelevant details.

Researchers call this “outcome-irrelevant learning,” a kind of mental noise that can lead to poor decisions over time.

It’s one of the building blocks of many well-known biases in psychology and economics.

The experiment: separating what matters from what doesn’t

To study this, Dr. Shahar designed a simple but clever task.

Participants repeatedly chose between abstract shapes to win rewards. The important rule was clear:
only the shape mattered. But there was a twist: the position of each shape on the screen kept changing randomly, left or right, with no connection to success.

In other words, location was completely irrelevant, and yet, many people still started learning from it, Even when they were explicitly told to ignore it.

What most people do

Over time, participants without autism began to behave as if location mattered.

If they received a reward after choosing something on the left side, they were more likely to choose the left again, even when the shapes were different.

Their brains were building false connections.

This is outcome-irrelevant learning in action.

What the study found, and why it’s surprising

Participants who reported an autism diagnosis showed a very different pattern.

They were significantly less likely to learn from irrelevant information and focused more precisely on what actually predicted success.

In simple terms:
they ignored the noise better.

Even more interesting, this wasn’t just a group difference. Across all participants, those with higher levels of autistic traits showed the same tendency: less distraction by irrelevant details.

A different way of thinking

"These findings support a growing idea in cognitive science: that autism is not only associated with challenges, but also with distinct strengths in how information is processed," said Dr. Rozenkrantz.

In this case, the strength lies in a more selective, detail-focused learning style that resists common biases.

Instead of being pulled by intuition or habit, this type of thinking relies more on what is directly relevant.

Why this matters beyond the lab

In real life, we constantly make decisions in messy, unpredictable environments.

We choose schools, jobs, partners, investments, often based on incomplete or noisy information.

The ability to filter out what doesn’t matter may be one of the most important skills for making better decisions.

This research suggests that some people naturally do this more effectively than others.

Is this always an advantage?

Not necessarily.

A brain that filters aggressively may struggle in situations where the rules suddenly change, or where subtle, indirect signals become important, like in complex social interactions.

So this way of thinking comes with trade-offs.

But in stable environments, where the goal is to identify clear cause-and-effect relationships, it can offer a real advantage.

Rethinking rationality

For decades, scientists have assumed that human thinking is inherently biased; that our brains are wired to take shortcuts, even when they lead us astray.

This study challenges that assumption.

It shows that under certain conditions, people can learn in a more precise, less biased way, and that this ability may already exist along a spectrum in the population.

The bigger picture

At its core, this research isn’t just about autism.

It’s about how all of us learn from the world.

Every day, our brains are deciding what matters and what doesn’t.
Every day, we risk getting it slightly wrong.

And sometimes, the difference between a good decision and a bad one isn’t intelligence or effort, 

it’s simply knowing what to ignore.