Re: Cage & Anechoic Chambers -- a few questions (Didier A Depireux )

Subject: Re: Cage & Anechoic Chambers -- a few questions
From:    Didier A Depireux  <didier(at)ISR.UMD.EDU>
Date:    Mon, 26 Oct 1998 11:23:57 -0500

On Mon, 26 Oct 1998, Richard J. Fabbri wrote: > ... Does this "high frequency noise" appear in both ears ? > ... Or, just one ear ? > ... Your comment mentions "during an experiment" - Is the > "high frequency noise" perceived in the quiet of the a.c. ? We do a lot of physiology experiments, i.e. we do a surgery and subsequent recordings, which go 24 hrs a day until teh animal dies. Which means, someone has to spend the nights with the animal. I hear a high frequency swish in both ears, not localized, when I enter the room, esp if I am tired (like at 4am, it is almost unbearable). I go in and out of the sound room a lot, so I have a lot of experience with the feeling of a deadened, quiet room. Didier -- Didier A Depireux didier(at) Neural Systems Lab Institute for Systems Research Phone: 301-405-6557 (off) University of Maryland -6596 (lab) College Park MD 20742 USA Fax: 1-301-314-9920 Email to AUDITORY should now be sent to AUDITORY(at) LISTSERV commands should be sent to listserv(at) Information is available on the WEB at

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