The evidence behind the model.

The Interference Window is not a therapy and does not claim to be one. It is a plain-language model built on a well-established body of psychological research.

The core claim — that your thinking about a situation generates more interference than the situation itself — is one of the most replicated findings in behavioural science. This page sets out the research foundations so you can assess them for yourself.

Acceptance and Commitment Therapy.

The Interference Window draws primarily on Acceptance and Commitment Therapy (ACT), developed by Steven C. Hayes and colleagues. ACT is one of the most extensively researched frameworks in psychology, with over 325 randomised controlled trials published since its first study in 1986 — conducted across six continents and a wide range of populations and settings.

Meta-analyses spanning more than 12,000 participants confirm ACT's efficacy across anxiety, stress, burnout, depression, and performance contexts. No counter-indications or adverse effects have been reported in the published literature.

ACT works by reducing the impact of unhelpful internal interference through increasing psychological flexibility — the ability to be present, open to experience, and able to act in line with what matters, regardless of what thoughts and feelings are present. Its six core processes include acceptance, cognitive defusion, present-moment awareness, values-based action, and reduced identification with self-narratives (Hayes, Strosahl and Wilson, 2012).

What the research shows in organisational settings

A substantial body of ACT research has been conducted specifically in workplace and leadership contexts. Consistent outcomes have been observed across managers, clinicians, educators, corporate leaders, and frontline staff including reduced job stress and burnout, improved engagement and role clarity, increased psychological flexibility under pressure, better emotional regulation in difficult conversations, and improved leadership effectiveness.

These outcomes appear in both individual and group settings and have been demonstrated to persist over time, not just immediately after an intervention.

Other fields pointing in the same direction

Daniel Kahneman

Research on cognitive load shows how mental noise degrades decision quality independently of the objective difficulty of the decision.

Mihaly Csikszentmihalyi

Decades of flow state research shows that optimal performance is consistently associated with reduced self-referential thinking and low internal interference — not heightened effort.

Daniel Goleman

Work on emotional self-regulation shows that managing internal states — rather than external ones — is the primary differentiator of effective leaders under pressure.

Dr Jill Bolte Taylor

Neurological research on identity and attention points to the same conclusion: the self-narrative the mind constructs around experience is a significant source of suffering that is separable from the experience itself.

Across all of these fields, the consistent finding is the same. Clarity, engagement, and effective action emerge when internal interference is reduced — not when people try harder to control or eliminate their thoughts.

What the Interference Window is and is not

The Interference Window is not a therapy, a treatment, or a clinical intervention. It is a reference model — a plain-language way of making visible the same mechanisms that this research identifies, without requiring clinical language, formal programmes, or professional support.

It is designed to be useful in the situations where most wellbeing tools are not available — in the middle of a working day, under pressure, when stepping away is not an option.

Through the Window

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