Why? What they're suggesting is that the genetic markup of the rats made the difference (that's what strain differences mean), not the environment.
And your other linked experiment isn't at all similar and doesn't have similar results. It's not even about opiate addiction.
Btw, Bruce Alexander is still alive and it wouldn't be that hard for him to find the funding to replicate his experiment, with better controls, if he wanted to.
And your other linked experiment isn't at all similar and doesn't have similar results. It's not even about opiate addiction.
Btw, Bruce Alexander is still alive and it wouldn't be that hard for him to find the funding to replicate his experiment, with better controls, if he wanted to.