Social Learning and the Brain: How Do We Learn From and About Other People?

When you think about learning, you probably think about things you are taught at school. But have you ever realized you use a different type of learning as well, on a daily basis? This type of learning is called social learning, and it has to do with the people around you. That is, you learn from and about others by watching and interacting with them. For example, seeing someone else’s mistakes may teach you to avoid falling into the same trap. Although social learning happens very often, you may not yet know much about it. However, social learning is very important because it helps us to learn more efficiently and to determine how best to behave around others. In this article, we introduce two different types of social learning, and explain how your brain plays an important role.

When you think about learning, you probably think about things you are taught at school. But have you ever realized you use a di erent type of learning as well, on a daily basis? This type of learning is called social learning, and it has to do with the people around you. That is, you learn from and about others by watching and interacting with them. For example, seeing someone else's mistakes may teach you to avoid falling into the same trap. Although social learning happens very often, you may not yet know much about it. However, social learning is very important because it helps us to learn more e ciently and to determine how best to behave around others. In this article, we introduce two di erent types of social learning, and explain how your brain plays an important role.

WHAT IS SOCIAL LEARNING AND WHY IS IT IMPORTANT?
When you think about the most recent thing you learned, the first thing that comes to mind is probably something you learned at school. For example, the French vocabulary you need to know for your upcoming test. Learning such things may be useful in the future: if you ever go to France on holidays, you will be able to ask for directions, for instance.
Clearly, learning knowledge (such as the French vocabulary) can be quite important. However, in addition to learning from books, you can also learn from and about the people around you. This is called social learning because, for this type of learning, people are the source. Most

SOCIAL LEARNING
Learning new information in a social context, with other people being the source of this information. Examples are learning from or about other people. of the time, you are surrounded by other people, including your family, teachers, and school friends. Therefore, you probably learn from and about others every day, perhaps without even realizing it! Because humans are such social beings, social learning is an important skill. Social learning is a very e cient way to learn things. For example, you do not have to figure everything out on your own, because you learn from other people's mistakes and successes. Also, social learning can enable you to get to know others better, and therefore to better understand how to behave around them. Such social learning skills help you to have good relationships with others, which is good for your well-being.
In this article, we explain two types of social learning: learning from other people and learning about other people. To show that you already use these types of social learning frequently, we will provide examples that you may encounter in school. Finally, because your brain plays a critical role in learning, we will explain how social learning works in the brain.

HOW DO WE LEARN FROM OTHER PEOPLE?
One important type of social learning is learning from someone else, by watching what they do. The idea is that other people's mistakes and successes can teach you whether you should behave the same way, or di erently [ ].
For example, imagine you are taking a test in school, but you just do not know enough of the answers to get a good grade. Your friend is sitting next to you, and you see she has already written down her answers. You may be tempted to take a quick look … but then, suddenly, one of your classmates gets caught cheating and is punished. Now you will probably think more negatively about cheating, because you have seen that it may result in punishment! In kids.frontiersin.org August | Volume | Article | other words, you have learned from someone else's mistake that it is better not to cheat during a test.
When you learn from watching other people, you are learning about the choices they make (such as cheating), and the results of those choices (such as punishment). If the results are positive, you are more likely to make the same choice. However, if the results are negative, you will probably make a di erent choice.
Scientists have discovered that people are good at learning about the best choices to make. However, we learn even better if we can also watch other people learning the same thing [ ]. When we watch others' choices, whether the results are good or bad, we have extra information on what the best choice may be. We use that extra information to improve our own choices. So, we benefit from learning from others, as it helps us to make better choices ourselves. This makes learning from other people's mistakes and successes more e cient than figuring things out on our own.

HOW DO WE LEARN ABOUT OTHER PEOPLE?
We have just explained that people learn e ciently from other people, by watching them. Another common type of social learning is learning about other people, by interacting with them. When you learn about other people, you learn what they are like and how they behave. For this type of learning, you need to pay attention to other people's behavior so you can use this information in future decisions.
For example, imagine you tell one of your classmates that you like the boy sitting two tables away. However, it turns out your classmate is actually untrustworthy: your secret ends up being passed on to the entire class and you are very upset! In this case, you may have learned that it is better not to tell her your secrets again.
Although there are a lot of things you can learn about other people, many scientists study how we learn about other people's trustworthiness. Learning who you can trust is very important, because it helps you to decide whether you can believe the things a person says.
Scientists have discovered that, during the teenage years, we become better and faster at learning who we can trust and who does not deserve our trust [ ]. So, during development, we become better at learning about others. This type of social learning therefore helps us to decide how to behave around others, which is necessary to build good relationships. would happen. Your brain notes this prediction error and makes sure you learn from it, updating what you already know with the new information.
In the case of social learning, consider the example we discussed earlier, when you told your classmate about your secret crush ( Figure  ). You expected her to keep quiet, but she did not. So, what happened was quite surprising because it was di erent from your expectation. Your brain notes the prediction error and uses this new information to update what you know about your classmate. That is, you have learned about your classmate, and you will not easily trust her with your secrets again .

WHICH PARTS OF THE BRAIN ARE INVOLVED?
To make all the calculations necessary for social learning, several areas of your brain are used [ ]. Scientists have discovered at least two brain areas that are important for social learning, called the ventral striatum VENTRAL STRIATUM Brain area that is, among others, involved in (social) learning because it calculates prediction errors. and the medial prefrontal cortex (mPFC) (Figure ). They made these

MEDIAL PREFRONTAL CORTEX (MPFC)
Brain area involved in, among others, social learning because when there is a prediction error, the mPFC updates your incorrect expectations in the brain with the new information you learned. discoveries by using an MRI scanner to scan people's brains. In Box , you can read more about how an MRI scanner works.
The ventral striatum is an area in the middle of the brain that you use when you make decisions, when you enjoy something, and when something is rewarding. Also, the ventral striatum is important for calculating prediction errors [ ]. It is therefore an important brain area for regular learning and social learning.
kids.frontiersin.org August | Volume | Article | Figure   Figure Brain areas involved in social learning. The ventral striatum (in the middle of the brain) calculates prediction errors, and these newly learned expectations are updated in the medial prefrontal cortex (mPFC, in the front of the brain). These two brain areas are therefore important in social learning.
The mPFC is an area in the front of the brain (behind your forehead), that seems particularly important for thinking about what others are thinking, and for making decisions that involve other people. Also, the mPFC is involved in learning: After prediction errors are calculated by the ventral striatum, your MPFC updates the expectations you had with the new information [ ]. The mPFC is, therefore, another important brain area for social learning.
So, the ventral striatum and the mPFC both play roles in social learning. However, it is important to realize that these brain areas are involved in other behaviors, in addition to social learning. Also, the ventral striatum and the mPFC are not the only parts of the brain used during social learning-many brain areas are involved. All these brain areas work together and communicate with each other while you are learning in complex social situations.

RECAP: WHAT YOU HAVE LEARNED ABOUT SOCIAL LEARNING
In this article, we have explained the two types of social learning and why social learning is an important skill. First, learning from other people's behavior and their resulting mistakes and successes is more e cient than figuring things out on your own. Second, learning about other people by interacting with them can help you to learn who you can trust and help you to build good relationships. When what kids.frontiersin.org August | Volume | Article | Box | Studying the brain: how do we know what is going on there?
To understand how social learning works, many scientists study the brain using a magnetic resonance imaging (MRI) scanner (Figure ). This scanner is a huge magnet that can take pictures of the brain through the skull. Scientists may use MRI to take pictures of someone's brain while that person is playing a computer game involving learning from or about others. In this way, scientists can find out which parts of the brain are involved during social learning. To find out more about how MRI scanners work and how they are used to study the brain, see [ ].

Figure
Researchers use MRI scanners to study people's brains. A research setting in which one researcher positions a participant on a bed that will slide into the MRI scanner. Two other researchers are behind a computer screen, where they will see images of the participant's brain after they start the MRI scanner.
actually happens does not match what you predicted would happen, prediction errors are calculated in the brain, and these prediction errors result in learning. Prediction errors are calculated in the ventral striatum, which the mPFC uses to update the information already stored in the brain.

CONFLICT OF INTEREST:
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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kids.frontiersin.org
August | Volume | Article | ILSE H. VAN DE GROEP I am a researcher at Erasmus University Rotterdam, and the Amsterdam UMC in Amsterdam, in the Netherlands. I am interested in understanding why some people show persistent antisocial behavior (such as aggression) throughout their lives, whereas others do not. To be able to understand these di erences, I look at the brain and behavior of young adults who were arrested for a crime when they were children. Amongst other things, I am curious to find out whether social learning and decision-making works di erently in these individuals.