What you see here is performance on that head-turn task for babies tested in Tokyo and the United States, here in Seattle, as they listened to "ra" and "la" -- sounds important to English, but not to Japanese.
Her ser I den opgave med at vende hovedet, for babyer i Tokyo og i USA, her i Seattle, og de lyttede til "ra" og "la" -- det lyder vigtigt for engelsk, men ikke for japansk.