How did this come about?

Re: Xenu ...

Originally posted by Chagur
Ran across a study many years ago that addressed the subject.
Unfortunately, it was so long ago, almost fifty years, I can't
remember the source (I was a psych. major at the time).

Essentially: The outer ear structure acts as a micro-delay circuit that
permits us to determine vertical orientation, peculiar to primates.

Included an interesting experiment: Blindfolded, determine the location
of a sound source with and without the outer ear distorted.
Horizontal location unafftected, vertical lost either in part or totally.

Take care.

Edit: Just remembered: Horizontal location is mildly affected if the
sound source is behind the subject.
Click to expand...

Yes, isn't that amazing? Something seemingly-worthless as the shape of the folds of the ear (pinnae) can do so much. Nature can be so graceful.

Just think if I Mike Tyson-ed someone and ripped off both of their ears. They wouldn't be able to tell if a sound was coming from front/behind above/below them.
 
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