This presentation by Gary Wilson, who admittedly is not a psychologist but instead a physician, is very well laid out and explains the natural reasoning behind the fact that essentially every guy with an internet connection has had experience with porn. Its main effects, independant of the content, are a reconditioning of the dopamine system and potential rewiring of human sexuality. Gary Wilson honestly explains it pretty well, and includes pictures.

This may not sound like a big problem, except that we cannot deny it has effects. Likely due to the type of content routinely presented, exposure to online pornography among minors was connected to a 650% increase in the likelihood of them reporting sexually aggressive behavior (Ybarra et al, 2011).

As something that impacts so many people, and alters their perception of love, respect, and even what it means to “be a man,” this problem is not just found all over the web, but even as close to home as facebook. Porn is something we absolutely have to talk about. Keeping it in the dark: undiscussed, illegal, or unaccountable, only generates more victims. Transparency, responsibility, and open discussion are more in order than any knee-jerk reactions.

bikinicontest

Bikini contest, courtesy of Wikipedia.