Based on clinical observations, it is believed that the index of words is stored in your left brain, and the contents of words (actually and mostly pictures) in your right brain. The left brain communicates to the right brain by number, not by word.
Kulingana na uchunguzi wa kimatibabu, inaaminika kuwa faharasa ya maneno imehifadhiwa katika upande wa kushoto wa ubongo, ilhali yaliyomo katika maneno (hasa na kwa kawaida picha) huwa kwenye upande wa kulia wa ubongo. Ubongo wa kushoto huwasiliana na ule wa kulia kwa kutumia nambari na wala sio kwa neno.