ever notice when youre watching a horror movie in most cases when there's a part that startles you/makes you jump there is usually a sound that comes with it which is at least 50% responsible for your girlfriend squeezing the blood out of your hand at the moment.

can anyone define those types of sounds and maybe explain how they are made and how they can be re-created?

i know a lot of times its usually done with string instruments/drums n that stuff but it would be interesting to further analyze the subject...

:D