The science behind your brain on porn

All contents have been reviewed by PhD scientists (see our experts).

Does the brain develop tolerance to sex films?

[web, paperpile] Landripet, Busko, & Stuhlhofer (2019). Testing the content progression thesis: A longitudinal assessment of pornography use and preference for coercive and violent content among male adolescents. Social Science Research.
Design: Longitudinal, within-subject
Population: Adolescent male
Sample size: 248
Author summary: The preference for violent/coercive pornography was found to decrease over time.
Keywords: escalation; habituation

Does viewing sex films cause a person to become a sex offender?

[web, paperpile] Mellor, E., & Duff, S. (2019). The use of pornography and the relationship between pornography exposure and sexual offending in males: A systematic review. Aggression and Violent Behavior.
Design
: Review
Population: sex offenders
Sample size: 21 studies
Author summary: There is no clear evidence to suggest a relationship between pornography and offending. Men who offend report less exposure to pornography. Pornography use does not result in more harm to the victim.
Keywords: sex offender; sexual assault; recidivism; sexual violence

Does viewing sex films cause erectile dysfunction with a partner?

[web, paperpile] Grubbs, J. B., & Gola, M. (2019). Is pornography use related to erectile functioning? Results from cross-sectional and latent growth curve analyses. The journal of sexual medicine, 16(1), 111-125.
Design
: Longitudinal, within-subject
Population: sexually active US men
Sample size: 433
Author summary: Latent growth curve analyses demonstrated no significant relationships between any pornography-related variables and trajectories of ED.
Keywords: erectile dysfunction

[web] Prause, N., & Pfaus, J. (2015). Viewing sexual stimuli associated with greater sexual responsiveness, not erectile dysfunction. Sexual medicine, 3(2), 90-98.
Design: Laboratory, cross-sectional
Population: Adult USA male
Sample size: 280
Author summary: VSS use within the range of hours tested is unlikely to negatively impact sexual functioning, given that responses actually were stronger in those who viewed more VSS.
Keywords: erectile dysfunction; self-regulation

Anonymous Scientist