"His impressive CV shows a history of influential roles, such as team psychologist for NZ Olympic and Commonwealth Games teams, and team psychologist for the NZ Black Caps cricket team during their 2006-08 international campaigns."
Hermansson is professor of sport psychology at Massey University and a director of Hermansson-Webb Associates.
He holds the title of professor emeritus and was made an Officer of the New Zealand Order of Merit for services to the field of sport psychology, having written several books on the subject.
In Wanganui, he will cover areas such as developing mental skills, dealing with internal barriers to performance, counselling, and team development work.
Sport Performance Whanganui co-ordinator Nicole Dryden said she was pleased to have secured the doctor.
"Gary Hermansson's CV speaks for itself," she said.
"We're delighted that he will be able to work with our talented athletes, their parents and coaches, to help them develop the mental tools and strategies to take their game to the next level."
-Coaches outside of P2P and the Promising Athletes Programme who want to attend can email Dryden on nicole@sportwhanganui.co.nz.