Rj. Levin et Rp. Macdonagh, INCREASED VAGINAL BLOOD-FLOW INDUCED BY IMPLANT ELECTRICAL-STIMULATION OF SACRAL ANTERIOR ROOTS IN THE CONSCIOUS WOMAN - A CASE-STUDY, Archives of sexual behavior, 22(5), 1993, pp. 471-475
The sacral anterior nerve roots were stimulated in a conscious female
paraplegic by means of an intradural implanted Finetech/Brindley stimu
lator activated by inductive radio signals. Changes in vaginal blood f
low were monitored by a photoplethysmograph. Stimulating S2 and S3 (bu
t not S4) caused significant increases in vaginal pulse amplitude indi
cating genital vasodilation and increased blood flow.