From: siguy2@hotmail.com   
      
   On 25 Sep 2005 06:22:40 -0700, CoreyWhite@gmail.com wrote:   
      
   >I ordered the waverider from an online store.  It is a biofeedback   
   >instrument that runs around $1,700.  It records EEG/EMG signals on a   
   >PC, along with GSR & HRV.  I am also using the trial version of   
   >BioExplorer, a great piece of software  for any biofeedback instrument.   
   >   
   >I programmed BioExplorer to listen to my EEG signals while I slept, and   
   >filtered out the delta waves from everything else in the signal.  Then   
   >I set a threshold of 35u that triggered a sound file to be played   
   >whenever my delta waves went above the threshold for more than an   
   >instant.   
   >   
   >The sound file was a sample I took from the original Matrix.  It was   
   >the part where Neo said, "Do you ever feel like you are still   
   >dreaming?".  It would go off whenever my eyes started moving behind my   
   >eyelids.   
   >   
   >The electrodes fell off my head in my sleep, but as I fell asleep the   
   >sound file would be played whenever I started to have a light dream   
   >before I really fell asleep.  I'm fairly sure it started playing while   
   >I was asleep, because the dreams I had last night were as vivid and   
   >entertaining as I could hope for.   
   Hey dude; interesting.Just a couple of questions, if you will.   
   First, why are you using Delta as the threshold stimuli? Doesn't make   
   sense if you're trying to get feedback while in REM or Stage 1 (light   
   sleep). Delta ( point 5 to 4 cycles per second) waves don't even show   
   up until you've already gone through the first cycle of awake/stage   
   1/stage 2/stage 3/stage 4...delta here, around an hour or more after   
   sleep onset.   
   Could you possibly be referring to Theta (4 to 7 or 8cycles per   
   second)?   
   As to the electrodes, you might want to try using a workout headband   
   to hold them down (colodian, notwithstanding! :) or even fashion a   
   "helmet" using women's rubber swim cap (worked for me back in the 70s   
   :)   
   anyway, just wondering.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)