IUBio

Fingernails GRATING on a chalkboard...

greystroke at delphi.com greystroke at delphi.com
Wed Dec 7 19:53:37 EST 1994


I hope this is the appropriate message base...
 
Anyways, on to the question...Being a high school student, I can't help but
notice the severe irritation caused in some people by that nasty sound of a
teacher's fingernails accidently screeching accross a chalkboard.  Though
I know some people are merely annoyed by the sound, others, such as myself
absolutely cannot tolerate the noise.  Hearing it makes me cringe; I want
to flee from the sound and attack the person making the sound at the same
moment.  Others experience the same sensation.  WHY does such a sound
cause so much anger and irritation in many people.  I cannot understand
why it does so, considering the noise is not physically painful.  I have
checked with people from other countries (Ukraine, Russia, China, Spain, and
Japan), and the effect is the same there.  Since this is not something that
we have shared with other cultures mediawise, I assume that it must be
biological.
 
Anyone have any answers?
 
Thanks!
 
Scott.



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