Masters and Johnson was a pioneering research team in the field of human sexuality, consisting of Dr. William Masters and Dr. Virginia Johnson. They conducted groundbreaking studies in the 1960s and 1970s that explored the physiological and psychological aspects of sexual response, leading to the development of the sexual response cycle model. Their work challenged societal norms and misconceptions about sexuality, providing valuable insights into sexual dysfunction and therapy. The duo's research laid the foundation for modern sex therapy and education, influencing both clinical practices and public understanding of human sexuality.