You see, monkeys, humans, and other mammals all have something in their brain called a “reward pathway.” Part of the reward pathway’s job is to promote healthy living by rewarding you when you do something that either keeps you alive (e.g., eating) or creates a new life (e.g., sex), or enriches your life with satisfying experiences and relationships.
The way it rewards you is by pumping chemicals, especially one called “dopamine,” through your brain. Dopamine makes you feel great, but its effects are not just temporary. While you’re enjoying that good feeling, it’s also building new pathways into your brain connecting together the different parts of the experience you had so you can remember to do that again. That’s why the types of behaviors we link our pleasure response to rend to become habits and stick around. When this chemical learning process happens with healthy behaviors it helps us live well, but when it happens with secretive and unhealthy behaviors it has the opposite effect.
So when someone is looking at porn, while they think they’re just being entertained, their brain is busy at work building pathways between whatever’s happening on their screen and feelings of arousal. Here’s where it gets tricky: The kind of porn a user watches can—and usually does—change over time. So as their brain continually wires together what they’re seeing with feeling aroused, what turns them on can change too.
A few years ago, a researcher named Jim Faust did an experiment with rats. As you’d probably guess, rats usually don’t like the smell of death. But Faust found a way to change that instinct. Faust put virgin male rats in cages with female rats that had been sprayed with a liquid that smelled like dead, rotting rat. As it turned out, the drive to mate was more powerful than the instinct to avoid the smell, and the rats hit it off.
Once the male rats learned to associate sex with the smell of death, Faust put them in cages with dowels soaked in the same death smell. Consistently the male rats would play with the smelly dowels as though it were soaked in something they loved.
If you’re wondering how rats could possibly be trained to go against such a powerful natural instinct, the answer is dopamine. Since dopamine is released during sex, the rats’ brains wired together the pleasure of dopamine’s release with the rotten smell.
Sounds pretty gross, right? Well here’s the thing—remember how we said all mammals have the same reward pathway in their brain? Those rats’ preferences were rewired into their brains with the same process that many porn users’ brains go through when they look at porn. And more often than not, the images their brains are wiring sexual arousal to get more and more extreme.
In a 2012 survey of 1,500 guys, 56% said their tastes in porn had become “increasingly extreme or deviant.” Because consistent porn users’ brains quickly become accustomed to the porn they’ve already seen, they typically have to constantly be moving on to more extreme forms of pornography to get aroused by it. As a result, just like the rats, many porn users find themselves getting aroused by things that used to disgust them or that go against what they think is morally right.
And once they start watching extreme and dangerous sex acts, these types of porn users are being taught that those behaviors are more normal and common than they are. One study found that people exposed to significant amounts of porn thought things like sex with animals and violent sex were twice as common as what those not exposed to porn thought. And when people believe a behavior is normal, they’re more likely to try it.
Research has also found that watching degrading porn increases users’ dominating and harassing behavior toward women, and leaves the user feeling less compassion for rape victims. Porn watchers are also more likely to express attitudes supporting violence against women—which is especially scary since those who support sexual violence are more likely to commit that kind of violence in real life.
Obviously not everyone who looks at porn is going to turn into a rapist; but the reality is that studies have shown that even casual pornography use has the power to start changing ideas and attitudes, and changes to behavior often aren’t far behind.
This post is taken from the website, http://www.fightthenewdrug.org
Citations to support the statements in this post are available upon request.