Nínú ìwé What’s Going On in There ? — How the Brain and Mind Develop in the First Five Years of Life , tí Dókítà Lise Eliot ṣe , ó sọ pé ọ̀rọ̀ sísọ jẹ́ “ ohun ìyanu ńlá , ó nílò ọ̀pọ̀lọpọ̀ iṣan tó máa yára ṣiṣẹ́ pọ̀ láti darí ètè , ahọ́n , òkè ẹnu àti gògóńgò . ”
Ninu iwe What’s Going On in There ? — How the Brain and Mind Develop in the First Five Years of Life , ti Dokita Lise Eliot se , o so pe oro siso je “ ohun iyanu nla , o nilo opolopo isan to maa yara sise po lati dari ete , ahon , oke enu ati gogongo . ”