actograph

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GUPTA: He has her wear a special watch, called an actograph, to record her movements during sleep.

CNN Transcript Apr 30, 2006 2006
GUPTA: He has her wear a special watch, called an actograph, to record her movements during sleep.

CNN Transcript Mar 26, 2006 2006
GUPTA: He has her wear a special watch, called an actograph, to record her movements during sleep.

CNN Transcript Nov 23, 2006 2006
GUPTA: He has her wear a special watch, called an actograph, to record her movements during sleep.

CNN Transcript May 21, 2006 2006
GUPTA: He has her wear a special watch, called an actograph, to record her movements during sleep.

CNN Transcript Apr 29, 2006 2006
GUPTA: He has her wear a special watch, called an actograph, to record her movements during sleep.

CNN Transcript Mar 24, 2006 2006
You can barely make out the rhythm even in the light-dark cycle (white-gray portion of the actograph) and the rhythms in constant darkness (solid gray) are even less well defined - thus only statistical analysis (bottom) can discover rhythms in such records.

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