A whiny kid attracts a lot of attention, as any exhausted parent will tell you. But there may be an evolutionary reason for annoying tones.
Clark University doctoral candidate Rosemarie Sokol discovered that whines sound similar to the speech parents use with their children. Both whines and "motherese" are high, slow and varied in pitch. Yet motherese is considered an important part of the developing relationship between parent and child, while whining is considered a bad habit.
Sokol speculates that whining serves the same purpose as motherese. A slow, melodic voice helps a speaker attract the attention of a person who's important to her, whether that person is an infant or a parent. When someone secures the attention of an important person, says Sokol, she strengthens the attachment between them.
Sokol's preliminary experiment shows that whines are even more attention-grabbing than a loud table saw. Test-takers completed fewer questions when whines played in the background than when they heard the saw or other kinds of speech.










