The study was conducted by a team of Swiss researchers at the Université de Genève.
In their findings, published in the peer-reviewed journal Child Development, researchers initiated experiments on 96 children at nine months old.
Such changes in the brain may even also be therapeutic, according to the study published in Cortex.
The study, conducted by researchers at the University of California, highlights continual learning during sleep, crucial in inhibiting the loss of old memories.
The internationally-based coalition of researchers examined more than 19,000 participants as part of the Health and Retirement Study.
The new findings were achieved by testing two participants who received implants with intracortical microelectrode arrays.
Researchers uncovered that astrocytes play a more vital role in the adult brain, regulating neuronal circuits associated with cognitive function.