Tagged: polysomnography

Measuring sleep: The squiggles explained! (Part 2) - Sleep on it

Karyn O'Keeffe • Apr 07, 2011 •

• polysomnography,
• sleep,
• sleep stages

In a previous post, I provided an overview of the stages of human sleep.  But how do we determine what stage of sleep a person is in? The current gold standard for objectively measuring sleep is called polysomnography or PSG. This mouthful is derived from the Greek poly meaning ‘many’, somnus meaning ‘sleep’ and graphein meaning ‘to write’.  Polysomnography … Read More

Measuring sleep: The squiggles explained! (Part 1) - Sleep on it

Karyn O'Keeffe • Mar 23, 2011 •

• polysomnography,
• sleep stages

I’m sure you’ve been wondering all week about the strange ‘squiggles’ in my blog banner.  Well, perhaps not, but the sleep geek in me hopes that at least one of you has.  My blog banner has a segment of an electroencephalogram (EEG) or ‘brain waves’.  This is a recording of my EEG, in fact. At this point in the night, … Read More