You prune away the weaker branches so that the remaining, important branches, can grow stronger, and this process, which effectively fine-tunes brain tissue according to the species-specific environment, is happening in prefrontal cortex and in other brain regions during the period of human adolescence.
Pódanse as ramas febles para que as que quedan, as importantes,  crezan robustas e este proceso, que axusta  eficazmente o tecido cerebral ao ambiente específico de cada especie, ocorre no córtex prefrontal  e noutras rexións cerebrais durante a etapa da adolescencia.