The answer would make a great coaching OrienteeringNZ blog post! I cant help with your request for a contact person. I’m sure its not just orienteering specific or sports specific.
As a collector of books I suggest some may contain helpful tips/techniques. This is just one example of factors which may impact concentration/focus.
- Carol McNeill’s 2010 book – “Crowood Sports Guides – Orienteering” chapter 14, Pg116 mentions ‘distraction by others’ in a list of “Some of the Demons of Concentration”. There are quite a few references in the index relating to concentration. Pg 67 ‘Loss of Concentration’ section mentions using trigger words to help and refer to Chapter 14.
- The 2010 book “Sport Motivation – Training your mind for Peak Performance” by Ken Hodge. http://search.aucklandlibraries.govt.nz/?q=Sport%20motivation&refx=&uilang=en I picked up an earlier 1994 edition of this book in a clearance sale. I see there is a 2004 and a 2010 paperback edition. You can see a select list of his publications and contact details here http://physed.otago.ac.nz/staff/khodge.html (He may be able to suggest a student with an interest in the area?)
There are likely other books in local libraries with keywords/titles like “sport focus” “sport concentration” and online resources too.