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  • Part 3: The Reward Circuit

  • In this graphic

  • you can see the limbic system in dark color

  • and the cerebral cortex on the outside,

  • which is very large in humans

  • and much smaller in monkeys and rats

  • and other animals.

  • You can think of cerebral cortex as the rational,

  • logical brain,

  • sort of like Spock on Star Trek.

  • It's not emotional,

  • it's the planning,

  • thinking part of our brain,

  • which comes up with clever ideas.

  • Now,

  • the cerebral cortex

  • understands the consequences of our actions;

  • the limbic system does not.

  • Like car engines,

  • all have the same basic design,

  • so do all limbic systems.

  • Whether it belongs to a rat,

  • cat, dog, or us.

  • Now,

  • whether it's hunger, mothering,

  • mating or sexual desire,

  • or even addiction,

  • the same brain chemicals and structures

  • do the same jobs in all mammals.

  • You see,

  • scientists aren't studying rat brains

  • to trying to figure out how to help rats.

  • No,

  • they're studying them to help us

  • with our addictions

  • and other reasons.

  • The study is useful to us

  • because limbic systems are so similar

  • in all mammals.

  • It's important to remember

  • that the chemical balance of our limbic system

  • shapes how we see the world,

  • shapes our mood.

  • If our limbic brain is out of balance,

  • so is our decision making.

  • At its most basic,

  • the limbic system is all about avoiding pain

  • and repeating pleasure.

  • You see,

  • survival depends on the avoidance of pain,

  • both physical and emotional

  • and the repetition of pleasure,

  • hot stove = bad,

  • ice cream = good,

  • mommy = good,

  • snake = bad.

  • Porn = good?

  • You get the idea.

  • Now,

  • you're looking at the center of the brain,

  • sliced down in the middle

  • and you can see

  • there is this pretty small area

  • called reward circuit.

  • Sometimes you also hear the term

  • reward center

  • and you can see that it actually goes

  • from the limbic system

  • up to the rational brain.

  • This is so important.

  • We're going to be spending most of our time

  • talking about this circuit.

  • You see,

  • this is where you experience

  • all desire and most pleasures

  • such as sex and orgasm.

  • It's also where you decide

  • what you don't like and what you do like

  • and that's why it's pretty important.

  • It's small, but

  • in essence, it's running the show.

  • You never make a decision

  • without consulting your reward circuit.

  • If you're addicted to anything,

  • here's where it happened.

  • The reward circuitry is activated

  • whenever we engage in behaviors

  • that further our survival

  • or more importantly,

  • the survival of our genes.

  • The rule is this:

  • To get motivated,

  • you must be rewarded.

  • So this circuit gives you feelings of pleasure

  • and also the motivation

  • to seek out pleasure.

  • It drives you to eat,

  • engaged in sex,

  • take risks and bond.

  • It's where you fall in love with your spouse

  • and with your children and your parents.

  • It also gets activated

  • when your team wins,

  • or you feel like an alpha male,

  • or you're bungee jumping.

  • The more exciting the experience,

  • the stronger this reward circuitry is activated.

  • But, keep in mind

  • that it's also activated for simple pleasures

  • like watching a beautiful sunset,

  • or walk in the woods,

  • or even a smile from a girlfriend.

  • Chemicals turned on and off

  • certain parts of the brain.

  • For the reward circuitry,

  • it's dopamine.

  • It's the main chemical of a group

  • called neurotransmitters.

  • They turn the reward circuitry on.

  • The reward circuitry is the engine,

  • it truly is,

  • and dopamine is the gas.

  • If you really like high calorie foods,

  • that maybe because you actually get

  • a bigger blast of dopamine for it

  • than you do for low calorie foods.

  • You crave them more

  • because their register is more rewarding.

  • That's why you choose chocolate cake

  • over brussel sprouts.

  • It has been programmed:

  • Give me high calories!”

  • Think about sugar.

  • A sugar buzz

  • is dopamine acting on the reward circuitry.

  • It's not the sugar in your blood acting on the brain.

  • Now,

  • excluding drugs like meth or cocaine,

  • orgasm is the biggest blast of dopamine.

  • Dopamine has lots of nick names:

  • The craving neurochemical,

  • the “I got to have it no matter whatneurochemical.

  • You see,

  • it's behind all motivation to do anything.

  • You're not craving ice cream

  • or sex with a porn star.

  • No,

  • you're actually craving more stimulation

  • of your reward circuitry.

  • You don't want to win the lotto;

  • you want to activate your reward circuitry.

  • The bigger surge of dopamine

  • in response to something,

  • the more you want it.

  • Here's a question.

  • Why don't those hedge fund billionaires retire?

  • They certainly don't need any more money.

  • Yes, they want more dopamine

  • in the form of winning at the stock market game.

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Part 3: The Reward Circuit

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第3部分:奖励电路|您的色情大脑|动画系列(Part 3: The Reward Circuit | Your Brain on Porn | Animated Series)

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    joey joey 發佈於 2021 年 04 月 25 日
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