It's not. To be in first person point of view, the narrator would need to say "I" and "me" when referring to them self. Since <em>Romeo and Juliet</em> doesn't have a narrator that uses "I" or "me" it isn't in the first person point of view.
What exactly do you need help with? Writing an essay?
Answer:
"and this overload of stimulus could be altering the way their brains are getting wired."
