A fMRI study by Voon et al. The ventral striatum is the primary region involved in sensitization to natural and drug reward [ ]. In line with these conditioning studies, the younger the age at which men first began regular use of Internet pornography, and the greater their preference for it over partnered sex, the less enjoyment they report from partnered sex, and the higher their current Internet pornography use [ 37 ]. In comparing sexual reward to substances of abuse, researchers Pitchers et al. He also realized that he had diminished sexual interest in his wife, manifested by his inability to maintain sustained erections, preferring to view pornography where he had no erectile issues. Neurobiology of Compulsive Sexual Behavior:
Male Sexual Response in the Brain While male sexual response is complex, several key brain regions are critical for achieving and maintaining erections [ 61 ].
Brain activation and sexual arousal in healthy, heterosexual males. For example, some researchers hypothesize that rising youthful sexual problems must be the result of unhealthy lifestyles, such as obesity, substance abuse and smoking factors historically correlated with organic ED. For example, it provides no statistical results for the erectile function outcome measure in relation to Internet pornography use. Male sexual arousal across five modes of erotic stimulation. When a fMRI study monitored brain patterns while men with psychogenic ED and potent controls viewed sexual films, those with psychogenic ED differed significantly from potent controls in the degree of activation of cortical and subcortical regions. Kinsey Institute researchers were among the first to report pornography-induced erectile-dysfunction PIED and pornography-induced abnormally low libido, in [ 27 ].