Actually it does both, but can we not let the take-home message get lost among the pointscoring. Not all ice users want to quit ice, even after an acute psychotic episode has resolved and a person is "thinking straight", the call back to the drug is so pervasive that the notion of going clean is not even on the cards for some users to the point where they would rather live on the streets and have their Centrelink benefits free for the shards than have accommodation and food.I like to think he'd want to change, I'm pretty sure all ice users would want to change, every time their coming down at least.
Your bang on in what you've said but one thing, dopamine doesn't actually give you the feeling of pleasure and reward it gives you the desire to feel pleasure and reward.
It's a very slight difference in terminology for the professional but a very big difference in hope for the patient.
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