quote:
And, I dispute the statement from one scientist that this has no survival value.
I think you're dead on TPAW.
Anyone who's ever hunted or been in the military during an exercise (been there) or during combat (not done it, but imagine its doubly true) knows that our sense of hearing is critical for success in either venture.
Remembering subtle sound patterns, not only has this prosaic function, but intonations are a very important medium for communicating emotional information and social nuance in human conversation.
In both cases, it's not hard to see the survival value of having highly developed aural discrimination and memory faculties.
This is off-the-top-of-my-head speculation and, as such, has no place in a journal article.
But to categoprically deny that these abilities have survival value is just stupid, in my opinion.
By the way, TPAW, cool article. Ever see the NOVA show about music where they got American college students to choose what emotion was being conveyed by a particular electronic sound, surprise, anger, sadness, joy etc...?
They obtained exactly the same responses from Australian Aborigine elders, which showed that the emotional response to sound was not learned, but an innate human trait. Cool.