"

 Notes 

Using Note b as an example, I'll try to illustrate what I have in mind. Here is the note as it is now:

Here is a modest step in what I would consider to be the right direction:

Here is a more extensive revision:

One could even delete the note in its entirety.   

 Disposition of behavior citations 
 This was originally part of this subsection, but it looks as if this issue will be easier to follow in its own level-2 section.
 Relating to this article section and its references: Phineas Gage#Exaggeration and distortion of mental changes
    

I've placed the references in five groups each with a headline. I think the next step is to decide which references are not needed in order to support the list in the article