Another important figure in the establishment of transpersonal psychology was Abraham Maslow, who had already published work regarding human peak experiences. Maslow is credited for having presented the outline of a fourth-force psychology, named transhumanistic psychology, in a lecture entitled "The Farther Reaches of Human Nature" in 1967. In 1968 Maslow was among the people who announced transpersonal psychology as a "fourth force" in psychology, in order to distinguish it from the three other forces of psychology: psychoanalysis, behaviorism and humanistic psychology. Early use of the term "transpersonal" can also be credited to Stanislav Grof and Anthony Sutich. At this time, in 1967–68, Maslow was also in close dialogue with Grof and Sutich regarding the name and orientation of the new field. According to Powers the term "transpersonal" starts to show up in academic journals from 1970 and onwards.