In 1973, he left Germany for a second time and traveled to the USA to be trained for 9 months by Arthur Janov.
He has been an influential reviewer of books and authors, such as Wilhelm Reich, Alice Miller, Arthur Janov, Arno Gruen and Otto Mainzer.
1970 – Arthur Janov published his book The Primal Scream, which outlined his theory of the trauma-based Primal therapy.
Arthur Conan Doyle | King Arthur | Arthur Miller | Arthur C. Clarke | Arthur | Arthur Ransome | Port Arthur | Chester A. Arthur | Arthur Balfour | Arthur Sullivan | Arthur Rubinstein | Arthur Andersen | Sir Arthur Conan Doyle | Prince Arthur, Duke of Connaught and Strathearn | Arthur Wellesley | Arthur Godfrey | Arthur Fiedler | Arthur Schopenhauer | Arthur Honegger | Arthur Rimbaud | Arthur (TV series) | Arthur Machen | Arthur Askey | Arthur Symons | Arthur Streeton | Arthur Phillip | Arthur Lowe | Arthur Ashe | Sir Arthur Harris, 1st Baronet | Arthur Boyd |
Jenson studied primal therapy with Arthur Janov in the seventies, and then started her own practice in Hailey, Idaho.