Related Experiment Video
Updated: Aug 14, 2026

Intracavernosal Pressure Recording to Evaluate Erectile Function in Rodents
Published on: June 6, 2018
Visual erotic and vibrotactile stimulation and intracavernous injection in screening men with erectile dysfunction: a
L Incrocci1, W C Hop, A K Slob
1Department of Endocrinology & Reproduction, Faculty of Medicine and Health Sciences, Erasmus University, Rotterdam.
Abstract:
To establish the number of patients with erectile dysfunction (ED) who appear to be sexually potent when exposed to visual erotic (VES) and vibrotactile stimulation (VIB) and to investigate whether or not older patients are less responsive to VES/VIB than young patients. Retrospective analysis of data on 406 consecutive patients screened for ED with VES, VES + VIB, VES + Intracavernous injection (ICI). Partial or full erection was obtained in 34% of patients with VES, 52% with VES + VIB, 82% with VES + ICI. Men < 40 y (n = 86) responded better than men > 40; between 40 and 80 no differences in penile responses were found. 50% of patients who reported no morning/night erections appeared to have good, rigid nocturnal penile tumescence (NPT). The use of VES, VES + VIB, VES + ICI is strongly recommended in the screening of men with ED of all ages; up to 80% will respond with a good erection. Only a positive penile response has diagnostic significance. The positive results reduce the necessity for further invasive investigations.

