They've crossed a brain threshold much earlier, that perhaps not at age 22 or 20, but even by age 15 or 16 you can begin to see the trajectory for development is quite different at the level of the brain, not at the level of behavior.
Prešli su moždani prag mnogo ranije, ne u 22. ili 20. godini, već i u 15. ili 16. može se zamijetiti da je razvojni tok poprilično različit na razini mozga, ne na razini ponašanja.