There is no technology that exists at this time that would allow you to selectively amplify dopamine, for instance, just in the nigrostriatal pathway or just in the mesocortical pathway. People with Parkinson's who actually have selective deficits of dopamine within the substantia nigra show deficits in what? In movement, in the smoothness of movement. Oftentimes they won't blink at all. They'll have kind of a blank stare. And they have other issues as well. I would strongly encourage you to look at that process as a very linear process in which there are right and wrong answers. The use of caffeine at appropriate dosages and dosages for caffeine were covered in the

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