The approach
How Threat Recalibration Therapy works
TRT is a structured therapy and psychoeducational approach to stress and anxiety recovery. Work with a qualified TRT Therapist who guides you through the Human Stability Framework and practical recovery steps. Our support welcomes individuals, athletes and teams.
Understanding the threat response
TRT focuses on learned patterns of attention, interpretation and behaviour that can keep the body's threat response active. Therapy works with these patterns to support greater stability in everyday life.
The Human Stability Framework turns this understanding into practical recovery steps. Your therapist helps you recognise unhelpful patterns, work through the structured programme materials and apply the approach in your daily life.
The Institute behind TRT
Charles Linden began his anxiety-recovery work in 1996. The Institute's earlier programme was known as the Linden Method; today's approach is presented as Threat Recalibration Therapy™ (TRT), supported by the Human Stability Framework. Historical publications remain available under their original programme names.
The Institute's published evaluation of its earlier programme reports mean GAD-7 anxiety scores falling from 18.28 to 2.84—an 84.5% reduction—among 61 participants who followed the programme as directed. This was a single-group outcomes evaluation, not a controlled comparison between therapies.
The Institute's research pages set out its methods, findings and publication status. Its Working Paper Series is released before formal peer review.
Read the Institute's history
Read the Institute's evaluation record
Read the research methodology
TRT in Spain
Threat Recalibration Therapy™ was developed by the Institute of Applied Psychophysiology. Our team provides personalised TRT support for individuals, athletes and teams, with sessions online and in person by arrangement near Oliva Nova.
Working with your TRT Therapist
Your first conversation focuses on you: what you are experiencing, how anxiety affects your life and what you want to change. We explain the approach and agree how your sessions will work.
Your TRT Therapist guides you through the recovery process and helps you put the practical steps into action between sessions. You have a clear approach to follow and someone to ask as you work through it.
Our team are qualified TRT Therapists and Psycho-educators accredited by the IOAP.
Sessions online and in person
One-to-one sessions can be arranged via Zoom, FaceTime, or in person at Oliva Nova or nearby.
- One-to-one sessions in English
- Online appointments via Zoom or FaceTime
- In-person appointments at Oliva Nova or nearby
- Group and residential enquiries
Speak with our team about the session format you prefer. For clubs, organisations and teams, tell us about the people you want to support and the arrangements you need.
For individuals, athletes and organisations
We welcome individuals seeking help with stress and anxiety, as well as athletes, clubs, organisations and teams. The focus is on the person and their recovery needs, whether anxiety is connected to sport, work or everyday life.
Contact our Spain team to talk about your situation, ask about TRT sessions and arrange your first conversation.