Figure 6.
Frequency of sleep perception following naps as a function of the decrease in ORP.
Notes: (A) Frequency of sleep perception following naps as a function of the decrease in ORP from its highest value, integrated over the entire nap time in epochs. Open circles are the integral values that are perceived as sleep 50% and 80% of the time, respectively. (B) Average values of perception frequency and ΔORPINT in individual patients superimposed on the overall relation of Figure 6A.
Abbreviation: ORP, odds ratio product.