What actually happens in CBT, and where it came from

By Dr Bobbie Scott, Clinical Psychologist · 3 November 2026

In the early 1960s, a psychiatrist at the University of Pennsylvania called Aaron Beck was trying to prove a psychoanalytic theory about depression. The theory said depressed people were angry, and that the anger had turned inward. Beck expected to find that hostility in his patients’ dreams. It wasn’t there. What he found instead was that his patients saw themselves through a filter, and as he later put it, “a negative self-image screened out the positive things in their lives”.

The second discovery came from watching faces. Beck noticed a patient’s expression shift mid-session and asked what had just gone through her mind. She had been having a quick, unspoken thought about him and about herself, the kind most of us never notice. Beck called these automatic thoughts. He then did something simple that became the backbone of cognitive behavioural therapy: he asked his patients what the evidence was for them.

That is still the heart of CBT when I see someone in Tunbridge Wells today. You arrive with something that feels like a fact, such as “I’m going to mess this up” or “they think I’m boring”, and together we treat it as a hypothesis instead. We look at what supports it, what doesn’t, and what you’d tell a friend who believed it. Then we test it in real life, because a belief that has been tested out in the world shifts far more than one that has only been argued with in a therapy room.

In practice, sessions are structured. We agree what to focus on at the start, we work on something specific, and you leave with a small task to try before next time. CBT stays mostly in the present. Your history matters and we will talk about it, but Beck’s shift was to ask what keeps a problem going now, because that is the part you can change this week. Many people need somewhere between six and twenty sessions, depending on what they bring and how long it has been around.

If you’re in Tunbridge Wells, Tonbridge or the surrounding villages and want to know whether CBT fits what you’re dealing with, I offer an initial consultation where we can work that out together. Get in touch or read more about how I use CBT.

Written by Dr Bobbie Scott, DClinPsy, HCPC registered clinical psychologist (registration PYL-CHECK). Examples of people in articles are illustrations, not real clients. Research findings describe what studies found, not a promise of any individual result.

Ready to talk?

A free 15-minute phone call is a chance to ask questions and see whether working together feels right. There's no obligation.

Book a free call