People learn mathematics at school. Mastering operations such as addition, subtraction, multiplication, and division requires years of education. However, modern neuroscience suggests that the foundations of mathematical thinking begin to develop much earlier than previously believed—during the very first months of life. New scientific research has shown that the brains of babies as young as three months old can already distinguish numbers and quantities to a certain extent. This discovery is considered one of the most significant findings in understanding the early development of the human brain.
Babies Develop a Sense of Numbers Shortly After Birth
For many years, scientists believed that the ability to understand numbers emerged only after language had developed and children reached school age. However, studies conducted over the past few decades have revealed a different picture. Observations have shown that even very young infants react when the number of objects in front of them changes.
Some researchers, however, argued that babies were not actually recognizing numerical differences but were simply responding to any visual change in the scene. To clarify this question, scientists designed a more precise experiment.
A Study Conducted at Harvard University
Researcher Véronique Izard and her colleagues at Harvard University carried out an extensive experiment involving 36 healthy three-month-old infants.
During the study, each baby wore a specially designed cap equipped with highly sensitive sensors that recorded the electrical activity of the brain. This technology enabled researchers to accurately observe which brain regions became active while the infants viewed different images.
Throughout the experiment, the babies sat on their parents' laps while looking at images displayed on a computer screen.
How Was the Experiment Conducted?
Initially, the screen displayed the same number and type of cartoon characters repeatedly. For a period of time, neither the number of objects nor their appearance changed, allowing the infants' brains to become accustomed to the images.
In the next stage, researchers introduced two different types of changes. In some cases, they replaced the objects with completely different ones. In other cases, the objects remained the same, but their number either increased or decreased.
Whenever these changes occurred, the babies' brain activity was recorded using specialized equipment.
Remarkable Findings
After analyzing the collected data with advanced computer models, researchers discovered something fascinating.
When only the type of object changed, one specific area of the brain became active.
However, when the number of objects changed, an entirely different brain region responded.
This finding indicates that infants are not simply detecting that "something has changed" in the image. Instead, their brains are capable of distinguishing changes in quantity from other types of visual changes. In other words, even at just three months of age, babies process numerical changes as a separate category of information.
A Sense of Numbers Is a Natural Feature of the Human Brain
The researchers believe that humans are born with an innate "number system" in the brain. This system allows us to intuitively estimate which group contains more objects and which contains fewer, even without performing any formal calculations.
This early mechanism serves as the foundation upon which mathematical abilities are built later in life. Although children only begin learning addition, subtraction, and other mathematical operations once they start school, their brains have already been preparing for these skills since infancy.
The First Step Toward Mathematical Thinking
According to the researchers, the early development of numerical understanding plays a significant role in a child's future intellectual growth. This ability contributes not only to mathematics but also to logical reasoning, comparison, decision-making, and understanding the surrounding world.
From the earliest months of life, the human brain begins evaluating differences in quantity, and over time this simple mechanism develops into the foundation of complex mathematical reasoning.
Importance for Future Research
This study is valuable not only for understanding infant development but also for the fields of neuroscience and education. Scientists believe that findings like these may help identify developmental disorders at an earlier stage, detect learning difficulties sooner, and contribute to the development of more effective educational methods for children.
Conclusion
The Harvard University study demonstrates that the foundations of mathematical thinking emerge far earlier than previously assumed. The brains of babies as young as three months can distinguish changes in the number of objects from other visual changes. This suggests that the ability to perceive numbers and quantities is an innate characteristic of the human brain. In other words, the journey toward mathematics does not begin in the classroom—it begins during the very first months of life.