Grounded in Neuroscience

The Narrative Enneagram approach is built on decades of research into how human personality patterns form, persist, and can be identified through language.

The Narrative Tradition

The Enneagram has been taught in the West since the 1970s, but the Narrative Tradition — developed by Helen Palmer and the late Dr David Daniels — brought something distinctive: the understanding that type is best discovered through speech, not self-scoring.

In the Narrative approach, people describe their inner experience in their own words. They’re not choosing between options on a scale. They’re finding language for sensation, motivation, and pattern — and in doing so, they reveal structure they might not see consciously.

The Narrative Enneagram is the longest-running certifying Enneagram school in the world and the first to receive International Enneagram Association Accreditation with Distinction. It’s the tradition I trained in, and the foundation of everything at Enneagram Cafe.

Patterns of Developmental Pathways

Dan Siegel — clinical professor of psychiatry at UCLA and one of the world’s leading voices in interpersonal neurobiology — first met David Daniels, and subsequently Helen Palmer, in the early 2000s. Over approximately 15 years, Siegel and the PDP Group (David Daniels, Denise Daniels, Laura Baker, Jack Killen) examined around 50,000 narrative accounts collected by Daniels in typing interviews and panels.

The aim was to establish whether the patterns clearly reflected in the Enneagram amounted to something measurable in terms of human psychological development. The result was the Patterns of Developmental Pathways (PDP) framework, which grounds the nine Enneagram patterns in interpersonal neurobiology.

In parallel, Carol Dweck’s research (2017, 2022) identified three core psychological needs — through entirely separate datasets and methodologies — that aligned with the findings of the PDP Group. This consilience from different scientific disciplines strengthens the validity of the underlying framework considerably.

The book Personality and Wholeness in Therapy, with lead author Daniel Siegel, was published by Norton after David Daniels’ death. It is targeted at clinicians and scientists who study affective neuroscience and interpersonal neurobiology, and represents the most comprehensive account of the PDP model to date.

The Three Core Motivational Drivers

The PDP model identifies three core motivational drivers that map onto the three centres in the Enneagram. We all need all three — but one becomes more sensitised and intensified very early in development (likely in utero through to infancy), shaped by genetic, neurobiological, and relational factors interacting together.

This is what Siegel calls temperament, the neurological wiring we don’t choose. It could be genetic or epigenetic; that’s an area of ongoing research.

Core Need	Enneagram Centre	When Thwarted	Dweck’s Term
Agency	Body (Instinct)	Anger / Irritation	Competence
Bonding	Heart (Relational)	Separation distress / Sadness	Acceptance
Certainty	Head (Thinking)	Fear / Anxiety	Predictability

Attendency

The second temperamental element in the PDP model is what Siegel calls attendency, where attention has a tendency to go. This is neither extroversion/introversion nor a system of emotional regulation. It’s simply where attention flows unconsciously and ahead of thought:

Outward — attention goes into the world and toward others

Inward — attention turns inward toward the self

Dyadic — attention is simultaneously on self and other (relational tracking)

These two temperamental elements — the motivational driver and the attendency — form the two axes that give us what the PDP model calls the personality palette: nine distinct patterns of developmental experience.

	Inward	Dyadic	Outward
Agency	Toward internal templates and learned patterns	Assimilates conflicting inward/outward information	Toward objects of need, desire, or threat
Bonding	Toward emotional motivations to be seen	Balances being seen while individuating	Toward the emotional needs of others to maintain connection
Certainty	Toward readiness and resources if danger comes	Inherent doubt about inner and outer perceptions	Toward scanning or engaging the environment to resolve uncertainty

These elements are temperamental, and in the current research there is no evidence of any change in these over the course of a lifetime.

Mode — Means of Deploying Emotion

When our core need feels threatened, we all regulate emotion in one of three ways. This is a significant part of how we deal with our innate temperament — how we respond under stress when familiar patterns show up.

Regulation Pattern	What Happens	Enneagram Types
Contain & Channel (Down ↓)	Emotion is held in and organised	One, Three, Five
Experience & Express (Up ↑)	Emotion is amplified and intensified	Eight, Four, Six
Reframe & Redirect (Shift →)	Emotion is moved aside and redirected	Nine, Two, Seven

When the means of emotional regulation is added to the personality palette, the familiar patterns of the Enneagram begin to emerge — each with what Siegel calls a neutral verb to describe the pattern:

The Nine Patterns

The table below brings together the motivational drivers (Agency, Bonding, Certainty) with attendency (inward, dyadic, outward) to produce the PDP codes — such as A-o (Agency, Outward) or C-i (Certainty, Inward) — alongside each pattern’s mode and a description of how it is experienced from the inside.

PDP	Pattern	Mode	How the Pattern Is Experienced
A-i	Mapping (One)	Contain & Channel ↓	Contains anger by tightening attention around internal standards, restoring clarity and composure before responding.
A-d	Harmonising (Nine)	Reframe & Redirect →	Nullifies anger by shifting attention away from activation to keep the internal and external environment even enough to prevent escalation, even when something important is lost in the process.
A-o	Directing (Eight)	Experience & Express ↑	Applies energy outward to assert presence and impact when anger arises, re-establishing a felt sense of being here with force (vitality and effectiveness).
B-i	Immersing (Four)	Experience & Express ↑	Amplifies emotional intensity to contact a sense of personal depth when separation distress arises; connection is restored when the self can be felt, even if what is felt is what is missing.
B-d	Producing (Three)	Contain & Channel ↓	Shapes emotional expression to match what feels expected or workable in the situation, maintaining connection by keeping things moving and on track.
B-o	Caregiving (Two)	Reframe & Redirect →	Shifts away from the vulnerability of one’s own attachment need by intuiting and meeting others’ needs; connection is restored through being recognised without having to ask.
C-i	Preparing (Five)	Contain & Channel ↓	Withdraws inward during uncertainty to reduce demand and recover clarity, so capacity can be rebuilt before re-engaging.
C-d	Questioning (Six)	Experience & Express ↑	Tests internal uncertainty against others and the environment to determine what is stable enough to proceed, restoring certainty through verification.
C-o	Seeking (Seven)	Reframe & Redirect →	Avoids the anxiety of limitation by generating possibilities and future-maps; openness itself provides relief because the options are certain.

Adaptive Strategy

In addition to the means of deploying emotion — a habituated response to our innate pattern — we also respond to our temperament through a whole series of different stimuli, which in turn lead to the development of recurring patterns. These enduring patterns of emotion, thought, and behaviour that persist across situations and stages of life are what Siegel refers to as personality. They are separate and discrete from — although invariably developed as a result of — our temperament.

To explore these patterns, Siegel draws upon Carol Dweck’s research. She introduced the concept of BEATs — Beliefs, Emotions, and Action Tendencies — alongside a theory of core needs (Competence, Acceptance, Predictability). These are the same core needs identified by the PDP Group, albeit from a cognitive-developmental angle rather than a developmental-interpersonal neuroscience position.

BEATs represent the recurring micro-patterns that arise when a core psychological need is activated:

Core needs → generate goals → which produce BEATs (Beliefs, Emotions, Action Tendencies) → which become stable over time through reinforcement and perception.

Core Need	BEAT Formed When Need Feels Uncertain
Competence	“I must be effective” → frustration / anger → action to assert capability
Acceptance	“I must be valued” → longing / sadness → action to connect or please
Predictability	“I must be safe” → vigilance / fear → action to plan or prepare

In short, Dweck describes the expression of the patterns and the PDP Group describes their developmental and neurobiological origin. Siegel describes the combination of an individual’s BEATs and their Mode as an Adaptive Strategy, a habituated way of restoring equilibrium to the self when one’s core need becomes thwarted.

Attachment and Developmental Adaptation

While the motivational driver and attendency reflect early temperament and neurobiological predispositions, the way these patterns become organised into stable personality responses emerges through relational experience — especially with early caregivers.

Siegel defines secure attachment as being adequately soothed, seen, and safe. He posits that those in the Agency group need to be soothed above other needs, those in the Bonding group need to be seen above other needs, and those in the Certainty group need to be safe above other needs. This aspect is an ongoing area of refinement and discussion within the PDP research community.

Layer	Determined By	Description
Vector (a/b/c)	Temperament	Which core need becomes sensitised
Attendency (i/o/d)	Temperament	Direction of attention and energy
Mode (↑/↓/→)	Attachment and relational learning	Learned modulation to manage emotional activation
BEATs / Patterns	Lived experience	Familiar, repeated ways of responding

When developmental relational environments are inconsistent or misattuned, individuals develop adaptive overrides — patterns that maintain connection or stability under conditions of emotional uncertainty. These adaptations are functional, automatic, and relationally-shaped. Over time, they can become familiar personality strategies.

Integration

Integration is central in the PDP model. It does not change your motivational driver or attendency. It increases range and flexibility in the regulation pattern and strategy layer. In other words, integration refers to our development of capacity.

For Siegel, Integration = Differentiation + Linkage. We differentiate parts of our experience — we notice what is happening, without collapsing or fusing into it — and then we link them in a coherent, flexible, adaptive way. This is the core definition of mental health in interpersonal neurobiology.

When a system is not integrated, we frequently see either rigidity or chaos, as the channel of integration is narrow and hard to navigate. By widening these pinch points, it becomes easier to continue in the river of integration. This is Siegel’s Window of Tolerance model.

Integration increases our range and reduces automaticity, allowing for greater responsiveness and relational presence, without requiring our underlying temperament to be changed or eliminated. The proposal is not to get rid of our personality pattern, but to free it up — to access its own integrative strengths, as well as the strengths of other pathways.

Going Deeper

The Mammalian Emotion Systems

The PDP model didn’t emerge in a vacuum. Its foundations rest on decades of research by Jaak Panksepp, an affective neuroscientist who spent his career mapping the emotional systems we share with all mammals.

Panksepp identified seven primary emotion systems hardwired into the mammalian brainstem — three negative (rage, panic, and fear) and four positive (seeking, care, play, and lust). It’s the three negative systems that matter most here. Each maps directly onto one of the three Enneagram centres:

Centre	Brainstem Circuit	What It Does
Body (Agency)	Rage / Anger	Mobilises energy in pursuit of needs or against obstruction. Activated when freedom of action is blocked or resources are threatened.
Heart (Bonding)	Panic / Separation distress	Monitors connection to caregivers and significant others. Activated when bonds feel at risk — generating the distress cry that calls for care.
Head (Certainty)	Fear / Anxiety	Orients attention toward potential danger. Activated when safety or predictability is uncertain — focusing the mind on threat assessment.

These systems are ancient, primal, and pre-conscious. They fire before the rational brain has time to make sense of what’s happening. As Killen (2009) proposed — and Siegel later developed through the PDP model — the structure of each Enneagram type is built around a particular pattern of regulation relating to one of these three systems. The system that becomes most sensitised in early life (through some combination of temperament and relational experience) forms the emotional bedrock of a person’s type pattern.

This is why type can feel so automatic and so hard to shift. It isn’t a set of beliefs we picked up along the way: it’s rooted in the oldest emotional architecture we have.

Evidence From Identical Twins

If type were purely genetic, identical twins should share the same type. They don’t. In a 2008 study, Betsy Maxon and David Daniels examined 36 pairs of identical twins reared together. Each twin’s type was established using a written assessment followed by a one-hour typing interview with an experienced Narrative Enneagram teacher.

The results were striking: only 2 of the 36 pairs (5.5%) shared the same type — actually fewer than a randomly matched control group (16.8%). Yet 83.3% of the twin pairs had types that were connected on the Enneagram diagram — adjacent on the circle, or linked by the internal lines. The twins weren’t random from each other, but they weren’t the same either.

The researchers concluded that while genetics appears to influence the broad territory (the connection between the twins’ types on the diagram suggests a shared foundation), environmental factors — especially the drive to individuate from a genetically identical sibling — play a decisive role in which specific pattern develops. The twins in the study had spent considerable time defining how they were different from each other, not how they were alike.

This finding aligns with the PDP model’s view: temperament (which may have a genetic component) sets the stage, but the relational environment shapes which pattern becomes most resonant. Laura Baker, a member of the PDP Group, is currently continuing this line of research with a new twin study in the United States.

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