Last Updated on May 14, 2026 by Staff
People are always trying to figure out what will happen next. We do this when we catch a ball crossing a road or think it will rain because the clouds are dark. Our brain is always using what happened before to guess what will happen next.
This is called making predictions. Scientists have a way to describe how we make predictions. It is called Bayesian inference. This is a phrase but it just means that we get better at guessing what will happen next when we get more information.
A lot of scientists think that our brain works in a way. It is always updating what it thinks will happen next based on what it sees and hears. Scientists are not really sure which parts of the brain are in charge of making these predictions.
Now some scientists from Radboud University and Erasmus University Medical Center in the Netherlands have found some clues. They studied mice to figure out how the brain makes predictions. What they found out is that some special brain cells called Purkinje cells are very important for predicting when things will happen.
This study helps us understand how our brain learns from what happens and uses that to help us do things.
Learning Patterns
To see how mice make predictions scientists did an experiment. They showed the mice a flash of light. Then gave them a little puff of air on the eye. After a while the mice learned to expect the air puff after they saw the light.
Then the mice started blinking before they got the air puff. This showed that their brain had learned to predict what would happen next.
The scientists made the experiment a little harder. Sometimes the air puff came sooner. Sometimes it came later. The mice changed how they blinked based on when the air puff came. This showed that they were not just remembering what to do. They were actually learning when things would happen.
This was a cool way that the mice were able to predict what would happen next.
Cerebellum Signals
The scientists looked at a part of the brain called the cerebellum. This part of the brain is usually in charge of helping us move and keeping our balance.
It looks like the cerebellum might also help us predict when things will happen. The scientists recorded what was happening in the brain cells called Purkinje cells. These cells are very special. Are found in the cerebellum.
As the mice learned when the air puffs would come the Purkinje cells started to work. They sent signals based on when the air puff was likely to come.
This showed that the Purkinje cells were helping the brain predict when things would happen.
Blocking Predictions
To make sure that the Purkinje cells were really important for predictions the scientists stopped them from working for a while.
When they did this the mice stopped blinking before they got the air puff. They had already learned to do this. They forgot how when the Purkinje cells were not working.
This showed that the Purkinje cells are very important for helping the brain predict what will happen next.
Future Insights
This study could help us understand how we learn and make decisions. It could also help us understand what happens in the brain when we have problems, like autism or anxiety.
The scientists think that predicting what will happen next is an important part of how our brain works. They want to keep studying how the brain makes predictions and how it helps us in our life.
The brain is always trying to figure out what will happen next. It is not just reacting to what’s happening it is always trying to predict what comes next.