question on localization with "horns"

[noam sobel <noamxj6c@xxxxxxxxx>]

Dear list

I remember once reading about an old (19th century?)
study where "horns" inserted into the ears were used
to improve auditory spatial localization in humans, as
a result of the artificially increased distance
between the ears.

I now tried to look for this reference, but failed to
find it.

Does anybody out there know what i am talking about?  
Any pointers would be great

Thanks,
Noam Sobel
UC Berkeley


 
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