The adult density of the synapses in the prefrontal cortex is achieved when?

The adult density of synapses in the prefrontal cortex is achieved during late adolescence to early adulthood, typically around the ages of 20 to 25. This process involves synaptogenesis, where new synapses are formed, followed by synaptic pruning, which eliminates excess connections to enhance the efficiency of neural networks. Environmental factors, experiences, and maturation of neural circuits significantly influence this developmental phase. Ultimately, the balance between synapse formation and pruning leads to the adult synaptic density characteristic of the prefrontal cortex.