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To: uunet!umbsky.cc.umb.edu!4700gbera@uu*.UU*.NE*
Subject: Re: "Cold Narc"
From: scifi!njs@uu*.UU*.NE* (Nick Simicich)
Cc: techdiver@opal.com
Date: Thu, 5 May 1994 23:47:33 -0400 (EDT)
In earlier mail, uunet!umbsky.cc.umb.edu!4700gbera said:

> Has anyone else had this type of experience at such a relatively
> shallow depth?

Am I the only person in this group who notices some (quite minimal)
narcosis symptoms at 60'?  At that depth, there is a slightly
unwarranted feeling of well being, like when you gape at the 12'
hammerhead shark.  By 80', they are really noticable, typically as
irrational nervousness and paranoia.  This is pretty consistent.  At
120' or so, noticable impairment, and at 170, vertigo and serious
light-headedness.  At 200', on air (once) silly behavior,
misinterpretation of other diver's actions, and paranoid fantasies.
Also laughing at silly things.

Personally, with some very rare exceptions, I believe that divers fall
into two groups:  Those who know that they are starting to get
impaired at 60'-80', and those that are not well enough in touch with
themselves to realize it.

Whether those that know admit it is a different story.

-- 
Nick Simicich - njs%scifi.uucp@uu*.uu*.ne* - njs@wa*.ib*.co*

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