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> 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.

I remember getting narcosis in an air chamber at 60FT.  When I switched 
from 100% O2 (yes I was getting DCS treatment) to chamber air, I felt 
like I had taken the quickest drink of my life.  The effect was small but 
noticable.  I have noticed slight narcosis in the water as shallow as 80FT 
during extremely rapid, high exersion decents to set anchors on wrecks.  

   Jody Svendsen
   MiG Technologies

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