Modalities / Lineages /

The Attachment Lineage

The idea that changed everything: we are wired for connection, and relationships shape the brain

Attachment theory is arguably the single most influential framework in contemporary psychotherapy. John Bowlby proposed that human beings are biologically wired to seek proximity to caregivers — and that the quality of early attachment relationships shapes personality, emotion regulation, and relational patterns throughout life. Mary Ainsworth gave the theory empirical teeth. Mary Main added disorganized attachment and intergenerational transmission. Allan Schore and Daniel Siegel brought neuroscience, showing how attuned relationships literally shape brain development. From these foundations, an entire tradition of attachment-based therapies emerged — all sharing the conviction that healing happens in relationship.

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  1. John Bowlby

    1907–1990

    Broke with Freudian drive theory to propose attachment as a primary biological need. Infants seek proximity to caregivers for safety, and disruptions produce predictable patterns of anxiety, protest, and despair.

    Concepts: Attachment behavioral system · Internal working models · Secure base · Safe haven · Separation protest

  2. Mary Ainsworth

    1913–1999

    Designed the Strange Situation (1969), operationalizing attachment patterns. Identified secure, anxious-ambivalent, and avoidant patterns. Maternal sensitivity predicted attachment security.

    Concepts: Strange Situation · Secure attachment · Anxious-ambivalent · Avoidant · Maternal sensitivity

  3. Mary Main

    1943–

    Discovered disorganized attachment (Type D) and created the Adult Attachment Interview. A parent’s narrative coherence about their own history predicts their child’s attachment pattern — the transmission mechanism.

    Concepts: Disorganized attachment · Adult Attachment Interview · Narrative coherence · Unresolved loss/trauma · Intergenerational transmission

  4. Allan Schore

    1943–

    Integrated attachment with developmental neuroscience. Right-brain-to-right-brain communication between caregiver and infant shapes the orbitofrontal cortex and affect regulation circuits.

    Concepts: Right-brain affect regulation · Orbitofrontal development · Implicit relational knowing · Interactive repair

  5. Daniel Siegel

    1957–

    Created interpersonal neurobiology (IPNB). Popularized the window of tolerance, mindsight, and the hand model of the brain. Integration as the mechanism of mental health.

    Concepts: Interpersonal neurobiology · Window of tolerance · Mindsight · Integration

  6. Sue Johnson

    1947–

    Created EFT for couples (1988). Identifies pursue-withdraw as attachment protest and helps partners access primary emotions beneath reactive positions.

    Concepts: EFT for couples · Pursue-withdraw cycle · Attachment injuries · Bonding events · Hold Me Tight

  7. Peter Fonagy & Anthony Bateman

    Developed MBT for BPD. Mentalizing — understanding behavior in terms of mental states — develops through secure attachment and fails under attachment stress.

    Concepts: Mentalizing · Reflective functioning · Epistemic trust · Pretend mode

  8. Alicia Lieberman

    1946–

    Created CPP, the most evidence-based dyadic treatment for young children (0–5) exposed to trauma. Building on Fraiberg’s "ghosts in the nursery."

    Concepts: Ghosts in the nursery · Angels in the nursery · Dyadic treatment · Reflective functioning in parenting

  9. Diana Fosha

    Created AEDP, making the therapist’s emotional presence the primary vehicle for "undoing aloneness." An innate healing drive (transformance) is released through corrective emotional experience.

    Concepts: Transformance · Undoing aloneness · Core affective experience · Metatherapeutic processing

  10. Cooper, Hoffman & Powell

    Created Circle of Security (1998). The Circle shows the child’s need for secure base and safe haven. "Shark music" names the caregiver’s triggered defensive responses.

    Concepts: Circle of Security · Shark music · Bigger, stronger, wiser, kind · Safe haven and secure base