Sleeping newborns can distinguish between two sounds and three sounds before they ever open their eyes.
April 20, 2026
Original Paper
Newborn infants show neural sensitivity to changes in auditorily presented numerical information
PsyArXiv · 6ndur_v1
AI-generated illustration
The Takeaway
Newborn babies possess a neural sensitivity to numerical information that functions even while they are fast asleep. EEG recordings show that their brains produce specific electrical signals when the number of sounds in a sequence changes. This discovery proves that the human brain does not need weeks of experience or visual learning to understand the concept of more or less. A basic number sense is hardwired into the human neural architecture from the moment of birth. Our mathematical foundations are just as biological and innate as our sense of touch or smell. It implies that the capacity for higher math is an inherent part of being human rather than a purely cultural skill.
From the abstract
Human infants are assumed to be born with an innate understanding of quantities—a number sense— that enables them to detect non-symbolic number differences, for example, between sets of objects. This early ability has been found to be a predictor of later math skills. The assumption of innateness is based largely on studies in infants at 6 months of age or older and using visual stimuli with large numerosities, or in studies lacking statistical power. Using EEG, we studied pre-attentive discrimi