Scientific Enneagram

Dan Siegel's Patterns of Developmental Pathways (PDP) framework is one of the first serious attempts to bridge Enneagram ideas with neuroscience, developmental psychology, and clinical practice. In this episode, I break down the core concepts behind PDP: temperament vs. adaptive strategies, neuroplasticity, the role of "wholeness" in personality development, and the three pillars of the framework...

Find all our material on Dr. Siegel's Book : HERE In this episode, Jeff Cook sits down with Danielle Fuller (Scientific Enneagram) for a deep conversation on Dr. Daniel Siegel’s Personality and Wholeness in Therapy —the book many are calling the most important scientific contribution to Enneagram theory in years. Together they unpack the book’s core framework around agency, bonding, certainty, emo...

Connect with Danielle : HERE Connect with Melissa : HERE Danielle returns to the Scientific Enneagram podcast to share the story behind her unexpected absence—her father’s sudden transition to hospice the very day the podcast launched, and his passing shortly after. Joined by Melissa Kircher, the conversation moves through grief as it actually unfolds: nonlinear, unpredictable, and often impossibl...

On this episode of Scientific Enneagram , Danielle—engineer, Type 9, and endlessly curious mind—kicks off a foundational series by tracing the (surprisingly recent) history of psychology and asking a practical question: where does the Enneagram fit when we try to study people with scientific rigor? Starting with early introspection and its “observer problem,” Danielle walks through the major movem...

We sit down with Danielle Fuller, creator of  Scientific Enneagram , to preview her brand-new podcast coming to our channel in January 2026. Subscribe : on iTunes or on Spotify . Danielle is an engineer and a systems thinker who sees a huge gap between the world of Enneagram teaching and the world of science and research. Her passion is to become a bridge-builder between those two spaces, hel...

The Scientific Enneagram is where curiosity, data, and depth meet. In this trailer, host Danielle—an engineer, Enneagram Nine, and lifelong bridge-builder—shares the story behind the show and why she’s obsessed with bringing more nuance and research to the Enneagram space. Drawing on 15 years in the defense sector, a master’s degree in the psychology of mental health from the University of Edinbur...