How do you get feedback from doing experiments on rats? You study their behavior. How do you know what that behavior means? You fit it into whatever experiment you are doing.
stupid
Why hasn't anyone noticed damage to this part of the brain(amygdala) before?
"Crucially, these same rats also were significantly more sensitive to cocaine after just one exposure. And rats given repeated cocaine injections later showed even stronger expressions of the enduring changes in behavior – suggesting an overall hypersensitivity to the addictive process."
What about the rats who didn't have the surgery done? And how do you tell the behavior of a rat? What are the specifics? How do you tell if a rat is sensitive to cocaine after one exposure? Did you offer it cocaine in its water bowl as a test to see if it would go after it more than regular water?
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