Cortical evoked potentials in subjects with true premature ejaculation.

Cortical somato-sensory evoked potentials (SEPs) from pudendal stimulation were determined in 23 patients with true premature ejaculation (TPE) and in 25 subjects as a control group. SEPs give a cortical representation of the sensory stimuli arising from the genital area. The amplitudes of the evoked response in the cortical area (P1-N1-P2 wave) were 4.96 +/- 1.89 microV in subjects with TPE and 3.79 - 1.38 microV in the controls (means +/- SD). This difference is statistically significative (P less than 0.005). Our results show a greater cortical representation of the sensory stimuli from the genital area and suggest an organic basis for TPE.