Washington, Sept 23 : Ever wondered why a song sounds sexy sometimes and annoying at other times? Well, a study on songbirds has shed new light on this question, showing that a change in hormone levels may affect the way we perceive social cues.
Emory University’s Donna Maney, who used white-throated sparrows for the study, says that the changes in hormone levels affect the perception by altering a system of brain nuclei, common to all vertebrates, called the ‘social behaviour network.’
"Social behaviours such as courtship, parenting and aggression depend primarily on two factors: a social signal to trigger the behaviour, and a hormonal milieu that facilitates or permits it," said the study leader.