CBT vs EMDR for anxiety: how I decide with clients

Brain Botanics

Sep 1

9 min read

If you've been researching anxiety therapy in Glasgow, you've probably run into two names again and again: CBT and EMDR. Both work. Both are evidence-based. Both get recommended for anxiety, sometimes by the same clinician.

So how do you actually choose between them?

That's the question I want to answer here, honestly and from the chair I sit in. I'm Rebecca Mackillop, an NCPS-accredited trauma and anxiety therapist based in Glasgow, and I use both approaches, along with exposure work, which I'll come to. You can read more about the

EMDR side of my practice on my EMDR therapy in Glasgow page. What follows is a look at how I choose between these approaches, or combine them, so you can walk into your own consultation with better questions.

One thing to flag from the start: I'm a clinician who favours practical application. Understanding your anxiety matters, but understanding on its own rarely shifts it. Real change usually needs you to do something differently, in your body, in your behaviour, or in how your nervous system responds to a trigger. That shapes how I work across every approach here.

A note before we start: this isn't a substitute for a proper assessment. It's a look behind the curtain at how one clinician makes this call.

The short answer

If your anxiety is mostly driven by unhelpful thinking patterns, avoidance, and a lack of coping tools, CBT is usually where I start.

If your anxiety is rooted in specific events, memories, or a nervous system that keeps flooding you with the same old alarm signals, EMDR often gets us further, faster.

And if you've been avoiding specific situations, sensations, or places, and your world has been shrinking to keep the anxiety manageable, exposure work is often the piece that makes the difference. It's also, honestly, the piece most missing from many people's previous therapy.

Most of the people I see sit somewhere in the middle. So most of the time, the honest answer is: we'll use a combination, in the order that helps you the most.

The rest of this piece is about what "helps you the most" actually means in practice.

What each approach actually does

The labels don't tell you very much. Here's what's really going on.

CBT (Cognitive Behavioural Therapy)

CBT works with what you're currently thinking, feeling, and doing. Together we look at:

The situations that trigger your anxiety
The thoughts that go through your head when they do
How your body responds
What you do next, which is usually some form of avoidance, safety behaviour, or reassurance-seeking

The work is to notice those patterns, test whether the thoughts you're having are actually accurate, and gradually change what you do so your nervous system learns something new. It's structured. It's collaborative. There's usually something to try between sessions. It gives you tools you can keep using long after therapy ends.

CBT is the treatment NICE recommends first for most anxiety disorders in the UK, including generalised anxiety, panic, health anxiety, and social anxiety. There's a mountain of research behind it.

EMDR (Eye Movement Desensitisation and Reprocessing)

EMDR is often thought of as a PTSD treatment, and it is one of the two main evidence-based options for PTSD alongside trauma-focused CBT. But it isn't only that.

EMDR works on the idea that a lot of what we call "anxiety" is actually your brain and body running an old survival programme in response to present-day triggers. Something happened. Your system didn't fully process it at the time. Now it fires whenever anything reminds you of it, even distantly.

In an EMDR session, we identify the memory or memories driving that alarm response, and I use bilateral stimulation (usually eye movements, sometimes taps or sounds) while you hold the memory in mind. The process helps your brain process the memory differently, so it stops setting off the alarm.

You don't have to talk through the memory in detail, which is often a relief.

Exposure therapy

Exposure is the most direct anxiety treatment there is. Its logic is simple: anxiety shrinks your life through avoidance, and the way to grow your life back is to gradually, safely re-approach what you've been avoiding, so your nervous system can learn it isn't as dangerous as it currently believes.

I use several forms of exposure depending on what your anxiety looks like:

Graded exposure and behavioural experiments for feared situations (leaving the house, driving, social settings, work environments). We build a hierarchy together and work up it at a pace you can tolerate.
In-vivo exposure where you approach the feared thing in real life, sometimes with structured support between sessions.
Imaginal exposure where we work with a feared scenario in the safety of the room, useful when the real thing is impractical or when we're preparing for it.
Interoceptive exposure for panic specifically, where we deliberately bring on the body sensations you're afraid of (racing heart, dizziness, breathlessness) so you learn they aren't dangerous and don't need to be feared.

Exposure gets a bad reputation because people hear the word and imagine being thrown into the deep end. That's not how it works. It's collaborative, graded, and paced. If you're too overwhelmed to start, we don't start. We build tolerance first.

The questions I'm actually asking in the first session

When someone comes in with "I have anxiety" and asks which approach we'll use, I'm not deciding on the spot. I'm gathering information over the first one or two sessions to answer these questions:

When did this anxiety start? If you can point to an event or a period ("it started after the breakup", "it kicked in when I had that health scare", "I've had it since childhood"), that's a strong signal.
What does your anxiety look like on a bad day? Is it looping thoughts? Physical panic? Dissociation? Avoidance of specific places or people?
What have you already tried? If you've done CBT before and got some benefit but the anxiety keeps coming back, that tells me something important.
How's your window of tolerance? Can you feel your feelings without getting flooded, or does even talking about the anxiety start to overwhelm you?
Is there a trauma history? Not just capital-T trauma. Also things like a chaotic home life, a critical or unpredictable parent, chronic illness in childhood, or bullying that no one addressed at the time.

The answers shape the plan.

When CBT is the right approach for anxiety

I usually start with CBT when:

The anxiety feels more "cognitive" than "somatic": the thoughts are loud, the body sensations follow
There isn't a clear event or memory driving the anxiety
You've been coping by avoiding things, and getting your life back means gradually facing them
You've had no therapy before and want a structured, skills-based introduction
The anxiety pattern is well-understood (generalised anxiety, health anxiety, panic, social anxiety, OCD-adjacent patterns)
You want practical tools you can use between sessions and after therapy ends

CBT is also often the safer first step if your window of tolerance is narrow. We can build skills and stabilise before doing any deeper trauma work.

When EMDR is the right approach for anxiety

I usually lean EMDR when:

You can identify a specific event, series of events, or period that your anxiety is tied to
You've already done CBT and understand your patterns intellectually, but the feelings haven't shifted
Your body reacts before your thoughts do: racing heart, tight chest, freeze, nausea, all before you've consciously registered what's set you off
There's a trauma history, whether or not you'd have used that word yourself
You're exhausted by managing your anxiety and want the underlying charge to actually lower, not just be coped with better

EMDR sits alongside memory reconsolidation work (based on Bruce Ecker's model) and Janina Fisher's trauma-informed methods in how I approach these cases. The common thread is working with the parts of the nervous system that don't respond to logic alone.

When exposure therapy is the right approach for anxiety

I lean into exposure work when:

Your life has been shrinking to accommodate your anxiety (fewer places you'll go, fewer things you'll try, more workarounds and safety behaviours)
You have specific feared situations, sensations, or triggers you've been avoiding
Panic is a significant part of what you're dealing with (interoceptive exposure is one of the most effective interventions for panic there is)
You've had CBT before and it didn't give you the relief you were hoping for

That last one is worth spelling out.

A lot of people I see have already done a round of CBT somewhere and come away thinking "I understand my anxiety much better, but I still have it". If that's you, the missing piece is often the doing. Talking about the thoughts, mapping the patterns, and understanding the cycle only takes you so far. The change usually comes when you actually approach the thing you've been avoiding, in a graded and supported way, so your nervous system gets a chance to learn something new.

This is the practical bit that I think gets under-used in a lot of anxiety therapy. It's not about "positive thinking" or "just push through it". It's structured, collaborative, and paced. But it's also the piece where the anxiety actually starts to loosen, rather than just being better understood.

When we combine them

Honestly? Most of the time.

A very common plan looks like this:

We start with CBT-style work to get you stable, understand your patterns, and build coping skills
We bring in exposure as soon as it's appropriate, so the work is practical from early on and your world starts to expand rather than shrink further
Once your window of tolerance is wider, we shift into EMDR to work on the underlying memories or events
We come back to CBT and exposure tools in the closing phase to consolidate what's changed and make sure you leave with something you can keep using

This isn't rigid. Sometimes we start with EMDR because the anxiety is so clearly memory-driven that skills alone won't shift it. Sometimes exposure is the whole game, especially with specific phobias or panic. Sometimes we stay in CBT the whole way because that's what the presentation calls for. But some combination of these three is the shape most of my work with anxiety takes.

What clients most often ask me about this choice

A few questions come up nearly every week. Here's how I answer them.

"Which one is faster?"

For a clean, single-event trauma, EMDR is often faster. For more diffuse or long-standing anxiety without a clear origin, CBT tends to be more efficient because the work is structured and skill-based. But "faster" depends more on the person than on the modality. I'd rather do the right work at the right pace than promise a timeline I can't keep.

"Which one is more evidence-based?"

Both are. CBT has the longer research history and broader guideline coverage across anxiety disorders. EMDR has strong evidence for PTSD specifically, and a growing evidence base for anxiety more broadly. Neither is "better" as a category. What matters is which one fits your presentation.

"Will I have to talk about everything in detail?"

Less than you probably think. CBT focuses on patterns more than history. EMDR asks you to bring the memory to mind, but not to narrate it in detail to me. If detailed retelling would be too much right now, that's information we work with, not something we push past.

"What if I don't know what caused my anxiety?"

That's fine. It's very common. We don't need to know the cause to start work, and the work itself often surfaces the answer.

"Can we switch approaches if one isn't working?"

Yes. That's part of what makes an integrative approach useful. If we're four sessions into a plan and it's not landing, we talk about it and adjust. Nothing is set in stone.

"I've done CBT before and it didn't really help. Is there any point trying therapy again?"

Genuinely, yes. When people say CBT didn't help, one of two things is often going on. Either the previous work stayed at the level of understanding without moving into practical exposure, so the anxiety was mapped but never actually challenged. Or the anxiety was memory-driven from the start, and CBT alone was never going to be the right tool for it. Both of those are addressable. It doesn't mean you're untreatable. It means the last round was missing something.

A note on evidence and where the guidelines land

For anyone who wants the short version of the current UK guideline picture:

Generalised anxiety, panic, social anxiety, and health anxiety: NICE recommends CBT as the first-line psychological treatment. Worth noting: the CBT the evidence base is built on almost always includes exposure work as a core component, not just cognitive work.
Specific phobias and panic disorder: exposure-based approaches have some of the strongest evidence in the whole of psychotherapy.
PTSD: NICE recommends trauma-focused CBT and EMDR as the two main evidence-based options.
Complex trauma, and long-standing anxiety with a trauma history: the guidelines are less prescriptive here, and a well-trained therapist will use clinical judgement, often integrating several approaches.

Guidelines aren't the whole story. They're a floor, not a ceiling. The right approach for you also depends on your history, your goals, and what your system can tolerate right now.

How to choose between CBT, EMDR, and exposure therapy

If you're trying to decide before you book, four honest questions to sit with:

Can I point to when this started, or does it feel like it's always been there?
When I'm anxious, is it mostly in my head, mostly in my body, or both?
What am I avoiding because of my anxiety, and how much has my life shrunk to accommodate it?
What have I already tried, and what happened?

Whatever your answers, a good initial consultation should include a therapist actually asking these things (or their equivalents) rather than telling you their approach and hoping it fits.

If you'd like to talk through where you'd land in this framework, book an initial consultation. I offer a free 15-minute call before anything is booked, so you can ask questions and we can both check the fit.

About the author: Rebecca Mackillop is an NCPS-accredited trauma and anxiety therapist and the founder of Brain Botanics Therapy in Glasgow. She trained in EMDR, David Muss's Rewind Therapy, Bruce Ecker's Memory Reconsolidation, Janina Fisher's trauma-informed methods, and Internal Family Systems.