If you find randomization to be stimulating, we suggest you read this study:
“Effect of Vaginal Electrical Stimulation on Female Sexual Functions: A Randomized Study,” Serdar Aydın, Çağrı Arıoğlu Aydın, Gonca Batmaz and Ramazan Dansuk, The Journal of Sexual Medicine, epub December 3, 2014. The authors, at Bezmialem Vakif University and at Liv Hospital, Istanbul, Turkey, explain:
METHODS. Forty-two women… The probe was inserted, and a medium-frequency (50 Hz) alternating current was administered for a duty cycle of 5 seconds on followed by a 5-second rest.
CONCLUSIONS. The lack of significant difference… puts into question the effectiveness of electrical stimulation as a monotherapy…
Here’s further detail from the study:
(Thanks to investigator Ivan Oransky for bringing this to our attention.)