re: American Horror Story Season 3 Episode 5: I am Anne Frank, Part 2

That's what transorbital lobotomies do... disconnect two parts of your brain that deal with personality and emotion. Patients are usually "zombie-like" after the procedure, and are usually more pleasant to be around. More often than not, the two parts eventually grow back together, and usually, the patient resorts back to how they were before.

I don't think this the last we'll see of her.