The humanistic approach emerged in reaction to Freudian and behavioral perspectives. It focuses on personal responsibility, living in the present, and fulfilling one's potential through self-actualization. Key figures like Rogers, Maslow, and Frankl emphasized unconditional positive regard, hierarchy of needs, and finding meaning. While popular initially, the approach faces limitations due to difficulties operationalizing concepts and measuring success. However, it paved the way for positive psychology by focusing on human strengths.