Thank you both for the replies. I think you are saying that there is a distinction between books on prose style (prescriptive) and books on cognition (descriptive).
That may be true, but I still suspect that there has been scientific research into what makes verbal communication more effective, and why that is so. For example, style manuals talk about the importance of coherence & cohesion in writing, and I can't believe that cognitive scientists haven't accounted for that in terms of how the mind simulates objects.
Just doing a random google search for <linguistics coherence cognitive> I found two , of unknown prominence/relevance, which suggest that this line of inquiry does exist:
http://www.latest-science-articles.com/Philosophy_Humanities/A-Cognitive-Contrastive-Study-of-Discourse-Coherence-in-English-and-Chinese-17770.html
http://books.google.com/books?id=uZcs6poXkfEC&pg=PA186&lpg=PA186&dq=linguistics+coherence+cognitive&source=bl&ots=Vevj2qVhtQ&sig=-inO5sLNexeajJ7j7pxbHaOwDoc&hl=en&ei=20UOTsaMMY-0sAOa8NWEDg&sa=X&oi=book_result&ct=result&resnum=5&ved=0CDgQ6AEwBA#v=onepage&q=linguistics%20coherence%20cognitive&f=false
So I'm in the frustrating situation of knowing that the thing I'm looking for exists, but not knowing where to find it
