My girlfriend and I are arguing over the reasons. Can anyone please provide the reason, hopefully with analysis and a source? I'm really good about giving the 10 points so fear not, a solid answer will receive the 10 points.
2006-06-15 23:08:18 · 4 answers · asked by Doclkk 4 in Education & Reference ➔ Homework Help
squeaky sounds like brakes, scratching the black-board have very high frequencies. Human ear has an ear-drum which vibrates at same frequency as incoming sound waves. so high frequency sounds cause discomfort within our ears.
2006-06-15 23:12:31 · answer #1 · answered by Anonymous · 2⤊ 0⤋
I read somewhere that perhaps the way we react to the sound of nails is a survival mechanism to make us react to a predator's claws on rocks... we are tuned in to react to a certain type sound so we can run away from danger. (I can't recall where I read this).
I did find a book (in an online search) that has a series of essays, one of which discusses survival and fingernails...
http://www.amazon.com/gp/product/0345366085/002-8513467-8591266?v=glance&n=283155
if you read the review for that book they mention fingernails. might be worth tracking down the book...
Not everyone reacts to scratching nails... maybe they'd die if in a predator/prey situation for lack of a reaction? I am not "afraid" of such sounds, but they certainly make me cringe. Ever since reading about this theory (many years ago), I have thought it a very good reason for the cringing behavior so many people have to certain frequency, loud, scratching noises.
2006-06-22 02:06:59 · answer #2 · answered by mw 4 · 0⤊ 0⤋
its not that people are afraid of thses sounds, its more of irritating because the high frequencies can cause disruptiin in the ear.
2006-06-16 00:07:45 · answer #3 · answered by ang_kulit49 2 · 0⤊ 0⤋
They have sensitive ears that are not used to loud or high-pitched noises.
2006-06-16 01:15:12 · answer #4 · answered by Stewie Griffin 4 · 0⤊ 0⤋