Re: finger nails on blackboard

[Bob Carlyon <bob.carlyon@xxxxxxxxxxxxxxxxx>]

dunno exactly, but surprisingly it's the LOW frequencies thatare important=
=20
for the effect.
see D.L. HAlpern et al (1986) "Psychophysics of a chilling sound", Percept=
=20
Psychophys, 39, 77-80

bob

At 01:02 17/07/2001 +0800, you wrote:
>Dear list,
>
>A question that has reoccurred over the last year in my philosophising=
 about
>sound is:
>Why do we feel so uncomfortable when hearing the sound of finger nails
>scraping on a blackboard?
>
>I'm working on my PhD in ecological sound design and this question seems to
>turn up every now and then...
>
>
>-----------------------------
>Mikael Fernstr=F6m, M.Sc.
>Interaction Design Centre,
>Department of Computer Science and Information Systems
>University of Limerick, IRELAND
>Phone: +353-61-202606 Mobile: +353-86-8188079
>Web: www.idc.ul.ie www.softday.ie

Dr. Bob Carlyon
MRC Cognition and Brain Sciences Unit
15 Chaucer Rd.
Cambridge CB2 2EF
England
Phone: (44) 1223 355294 ext 831
Fax:   (44) 1223 359062
email: bob.carlyon@mrc-cbu.cam.ac.uk
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