Understanding Mentalization in Attachment Theory

Mentalization in therapy refers to the ability to understand our own and others’ thoughts and feelings within attachment relationships. In this episode, we explore how mentalization develops, why it collapses under stress, and how therapists can support reflective capacity in the counselling room.

What You’ll Learn in This Episode

• What mentalization actually means in clinical practice
• How mentalization develops through early attachment relationships
• The difference between baseline (trait) and moment-to-moment (state) mentalizing
• Why mentalization collapses under stress and dysregulation
• The link between nervous system regulation and reflective capacity
• How therapists can adopt a not-knowing stance
• Recognising when certainty replaces curiosity in the therapy room
• Working with “resistance” through a mentalizing lens
• The role of supervision in restoring reflective thinking

Mentalization in the Therapy Room

A key takeaway from this episode is simple but powerful:

You cannot mentalise if you are not regulated.

When clients enter fight, flight, or shutdown, reflective capacity collapses. This is where therapists must prioritise regulation before reflection.

Equally, therapists must monitor their own state:

• Certainty = loss of mentalizing
• Curiosity = restoration of mentalizing