🚀 go-pugleaf

norlin@midway.ecn.uoknor.edu (Norman Lin) writes:

>stansbury-travis@yale.edu (Travis Stansbury) writes:

>I believe (does anyone know?) that the DreamLight detects REMs via
>a physical sensor mounted on the eyelids during sleep.  If you close
>your eyes and hold your finger lightly against your closed eyelid,
>you'll feel when you move your eye around, since your cornea protrudes
>a bit from the rest of the eyeball.  A sensitive switch or pad of
>some sort could detect this.

>My question:  what sort of a sensor would be delicate enough to detect
>the slight bulge of the cornea moving around beneath the closed eyelid,
>without causing uncomfortable pressure on the eye?

	(disclaimer: I don't know how the "Dreamlight" works).  
    Rather than sense the physical movement, how about a simple EMG monitor
that picks up muscle activity around the eye socket?  This should suffice as
an REM detector.  
    Another idea I had based on readings in dream physiology would be to
monitor the standard deviation of the respiratory rate.  This would be 
cheaper.  Don't how about how the accuracy would compare.
-- 
Ray Berry kb7ht ray@ole.cdac.com 73407.3152@compuserve.com /*inquire within*/