PDP Group
The PDP Group, or Patterns of Developmental Pathways Group, was formed in 2004 with the goal of bringing the profound knowledge of the Enneagram to science through a developmental model. The group in alphabetical order includes Laura Baker, PhD, David Daniels, MD, Denise Daniels, PhD, Jack Killen, MD, and Daniel Siegel, MD. Together the PDP Group spans the fields of the Enneagram, psychology, neuroscience, and medicine. More specifically, the group has expertise in affective neuroscience, interpersonal neurobiology, transpersonal psychology, AI and data science, contemplative and mystical traditions, and mind-body-based practices, including meditation, breath, and yoga.