 This quickly evolved into a theory of stable brain quadrants, independent of brain anatomy facts, each with its own characteristic “genius.” He developed the Herrmann Brain Dominance Instrument (HBDI), the scored and analyzed Participant Survey, and designed the Applied Creative Thinking Workshop (ACT), which remains a leading personality assessment instrument and workshop topic in corporate training.Herrmann's contributions brought him worldwide recognition.In 1992, he received the Distinguished Contribution to Human Resource Development Award from the American Society for Training & Development (ASTD).