Transcript
Professor Jennifer Hudson Welcome, my name’s Jenny Hudson. I am a Professor at the Black Dog Institute at the University of New South Wales in Sydney, Australia. Thanks so much for taking the time to watch this session on how we can use exposure more effectively for children and young people with anxiety. Science tells us that we’ll learn better when we attempt to implement skills, so I encourage you to practice the strategies that we talk about today. They might seem easy, but what we know from research is that it’s really important that you use your own experience to practice and to learn how to use these strategies. And you’ll know from your own experience of anxiety that facing fears is really hard, and it causes distress and it’s really hard to make kids do things that make them scared or worried, so getting some practice is really important.
But welcome. What we’re going to be covering today is three key things. I’m going to cover, first, the research evidence on exposure use and then, talk about some of the common barriers that people have in using exposure and the common myths and misconceptions that really prevent people from using exposure in their therapy with children and young people. And then, I’m going to talk really exposures, step-by-step, and how to deliver a good exposure, how to use it effectively, and more effectively than perhaps you have in the past.
Alright, so research evidence to start with. We know that cognitive behavioural treatment is recommended as the first line of care for children and young people with anxiety disorders. Around the world there are a number of different guidelines, and they all recommend cognitive behaviour therapy as, really, the first line of care. There’s been a number of other techniques or approaches that have been tested, but the research consistently shows that CBT is the most effective and the one that has the most evidence to support it. The research that’s really led to these recommendations typically evaluates a whole treatment package, kind of, delivered in the same way to all children, and almost all of these treatments really include two components. There’s the anxiety management strategies and exposure.
So, the anxiety management strategies, kind of, vary from treatment package to treatment package. Some might include some psychoeducation, understanding anxiety, what it’s like, understanding the, kind of, normal process, the natural processes of anxiety and fear. Then there might be cognitive restructuring that’s added, so helping children to think differently. We know that children with anxiety tend to expect the worst in situations. They’re more likely to look for bad things to happen, and more likely to predict bad things to happen in a situation. So, cognitive restructuring is a technique that is used to help children think differently, look at situations in a different way. Sometimes anxiety management strategies might include relaxation, helping children to be calmer or, kind of, lower their arousal in situations. Some treatment packages might include problem-solving, kind of, a range of different anxiety management techniques. So, I’m, kind of, lumping all together really as anxiety management techniques, but they vary from package to package.
But most treatment packages also include the second component, which is exposure, and that’s what we’re going to be talking about today, of – which is really gradually – can be gradually, most likely it’s gradually, facing situations that a child or a young person is scared of. Using these packages, what we know is that about a half to two thirds of children and young people respond favourably. I’m using the terms “children and young people,” I’m really talking about school-age children from first year of school through to high school, end of high school, and those words will differ depending on what country you’re in, but in terms of the application of the strategies today, it’s really focusing on those children who are of school age. But we know that using these packages with the anxiety management techniques and exposure, about half to two thirds of children will respond favourably to CBT, so that’s pretty good outcomes.
What we also know – this is a systematic review that was conducted by Stephen Whiteside in 2020 showing that the more treatment focus there is on in-session exposure, so, kind of, facing your fears with a Therapist and child together in a session, the better outcomes for children and young people. So, that’s pretty good information about the importance of including exposure, and also, when comparing effect sizes across all the different studies that have looked at these treatment packages, treatments that included exposure were stronger when relaxation strategies were not included.
That’s really interesting information, ‘cause what it tells us is that if we want to improve our outcomes for the children and young people that we see, we really need to do more in-session exposure. And actually, what it tells us is maybe adding these additional techniques like relaxation, or cognitive restructuring, perhaps, actually may impact on how effective exposure is, and we don’t know why that is. It could be that it’s just not leaving enough time to do good exposure, and we know that the more exposure that is done in session, the better the outcomes the child will have. We don’t really know why that is, but we do know that when relaxation is added, actually the effect sizes are weaker.
There’s another study also conducted by Peris and colleagues, and that showed that better outcomes were actually produced when the child and Therapist conducted more challenging exposure. So, we’ll talk later about, kind of, starting off with easier exposures and, kind of, moving to more difficult ones, but the more the child challenged or faced harder situations on their hierarchy of fears, the better the child did in treatment and the greater reduction in anxiety. So, this is, kind of, also some more evidence to that idea that the more extra stuff you add in-session, the more anxiety management techniques that you might use, actually the less time that leaves you for exposure. And we know that you need – we need to have those harder, more challenging, exposure sessions to get good – get better outcomes. So, really what this does suggest is that treatment that includes more in-session exposures and perhaps less of a focus on those other strategies, might be more effective for getting good outcomes for children and young people.
So – and about – the research was really telling us that exposure is considered central and when you ask a lot of Clinicians or Academics about this topic, they’ll say that exposure is probably a pretty critical ingredient, but yet, there’s actually really limited research on the technique on its own. So, I’ve been talking about the fact that the treatment tends to evaluate packages altogether, rather than the specific techniques. We can pull them apart using our systematic reviews, like in the research I just talked about, but actually, there’s really limited research just using the technique on its own of exposure, specifically in young people with anxiety.
We also know that few children with anxiety disorders receive evidence-based care. So, we know from the research that, actually – some research that we conducted in our team was a community study in Australia showing that children who sought help for their anxiety, only a third of them had received cognitive behavioural techniques or evidence-based care. And we asked them, also, kind of, what treatment they received, and this was relying on families’ and children’s memory, but only 5% of them actually recalled receiving exposure of any type, when the Therapist helped them to face their fears, kind of, in a systematic and planned way.
So, this is really interesting in terms of its use. Even though we know that it is an effective technique, people are finding it – Clinicians are finding it hard to deliver it. They tended to report, the parents in the study, that they received a lot of other treatments, like mindfulness, and a range of other supportive techniques, but less on exposure, and we know that strategies like mindfulness actually have limited efficacy in children and teenagers. Even though we know that they work well with adults, because of the different cognitive development of children and young people, mindfulness is something that is not as effective as it is in adults, at least in terms of the effect sizes that are delivered, particularly in reducing anxiety. This really highlights a gap between science and practice, even we know that anxiety – that anxiety’s reduced through exposure, that it’s not being delivered as much in community practice.
So, let’s talk a little bit about what exposure is, and I’ve been mentioning it a lot so far, but let’s talk a little bit more about what it is. So, it’s really confronting fears in a planned way, in a systematic way. At least in therapy, we, kind of, do it in that systematic and planned way, and there are lots of different variations of way that exposure is used, a lot of different variations. We conducted a review very recently and looked at the literature in how exposure is delivered, and there are huge amounts of variation in what people call exposure. But I’ve, kind of, listed them here, that sometimes it’s in vivo, which is face-to-face, so the Therapist and the child, or the parent and the child, doing – facing their fear in a situation. So, it might be a child facing a dog, approaching a dog, or doing a speech in class, that’s an in vivo exposure.
Then, in contrast, sometimes it’s really hard to set up exposures that are face-to-face or, kind of, in real life, so we do imaginal exposures, as well, where it’s just getting the child to face the, sort of – imagine the situation and think about it, and getting them to really visualise it and immerse themselves in it in a, kind of, gradual way if the – facing the situation’s either too hard or too difficult, or to, kind of, schedule or co-ordinate. We can do exposures in a graded way, or in a random way. So, graded is that you can step it up, doing – facing the feared situation with easier steps first, moving up to harder steps, or it could be random, and we don’t actually have any evidence over which is more effective. We think that perhaps they’re both just as effective as each other, and maybe even random, which is, kind of, just selecting any level. There might be some benefits for that as well, but for children and young people, having control over it or doing it in a graded way might actually increase engagement, or be less likely that – for the child or the parent to drop out of therapy. So, most of the time, therapy is delivered – or exposure therapy’s delivered in a graded way.
We can use additional strategies. Exposure can be done just facing the situation, without any cognitive restructuring or without any relaxation, or you can add additional strategies. But what we know from the research is, potentially, that these additional strategies might impact. We don’t really know why at this point, we can add some theories about it, but adding these additional strategies might impact on it. We’re doing some research at the moment trying to look at that, sort of, you know, when you add cue reminders perhaps, or when you increase the expectancy of violation or, you know, rehearse what it is that the child’s worried about happening and, kind of, checking in whether or not that happened during exposure. We’re looking at whether or not those, kind of, additional strategies of cognitive restructuring, relaxation, as well, whether that actually impacts on the efficacy of exposure treatment. We’re working on that at the moment, so perhaps we’ll come back to you on that research.
Also, kind of, doing it with or without deliberate response prevention, and it – treatment for e – obsessive compulsive disorders, OCD, that’s anxiety – very similar with those obsessions and compulsions, that exposure tends to be done with deliberate response prevention. So, where the child is asked to face the situation, but without doing their usual compulsions. So, it might be getting their hands dirty and then, deliberately not washing your hands, even though that might be a usual thing that we do in real life, deliberately not doing that prevention of – reducing the anxiety, and you’re letting them sit with that worried thought and sitting with the anxiety.
With or without modelling. Exposures done differently, whether the Therapist is modelling how to do it first, or the parent perhaps, is another way of varying the type of exposure. With or without technology. There’s a lot of treatments, I’m working on one at the moment, looking at exposure treatment delivered through technology and digital treatments. Different studies have also looked at with or without eye movements as well, in – particularly in post-traumatic stress, another way of varying the type of exposure, eye movement desensitisation. That can be weekly or intensive exposure therapy, as well.
There’s a lot of great research coming out looking at mass exposure, so doing it all in one. We’re, kind of, used to therapy which is weekly, one hour a week, but actually, intensive therapy can work much more quickly if you do it all in one go. But often, that’s harder to co-ordinate and doesn’t necessarily fit with funding models, but we know that intensive therapy works effectively, as well. It can be in-session or done at home.
Alright, so how does it work? Exposure therapy was really – it was originally developed from the principles of associative learning. There’s been lots of different theories that have been used to try and explain why exposure works. The initial focus on extinction learning, that idea a young person, kind of, has that habituation that you get used to the fear and habituate to that fear, and exposure allows that person to habituate to that fear of emotion, sorry, that emotion of fear. Can be fear of emotion, as well. Others have said, too, that the mechanism behind it might be that it actually helps a young person to disconfirm their beliefs about the situation. So, kind of, facing the fear lets a – the young person know that what they thought was going to happen is not as likely.
However, more recently, there’s – the inhibitory learning theory model has proposed another slight – a different approach, in that exposure’s successful because it establishes new memories about the feared object or the situation, that, kind of, competes with old memories. So, it’s that idea that, you know, the old memory doesn’t actually go away, but it just weakens over time and then, with exposure, actually helps to create a new memory that competes with that old memory. So – well, this theory really helps to explain relapse of fear as well, why these – why once you’ve done therapy with a child and perhaps they go through a difficult transition, going to high school or have a stressful event, or going through puberty, that fear might relapse.
So, this theory does nicely help to explain why there might be that relapse of fear, and that that old memory is always there, but a new memory has been re – doesn’t replace the old memory but it, kind of, runs alongside of it. And the idea of exposure strengthening that new memory, and the more practice you do, the stronger that memory has been. So, I’ve been using these – this rationale, really, to explain it to young people, and it helps them to understand why they’re doing exposure, that the more practice they do, that’s not just doing it once, but they really need to, kind of, practice and strengthen that new memory.
So, let’s talk about why – what the barriers are to exposure. If it is such an effective technique, why are people not using it? I’ve, kind of, hinted to some of this at the beginning, but let’s talk about it. There are common beliefs and misconceptions. So, I’ve heard – we’ve done a bit of research with Clinicians, asking them and asking parents about their use of exposure, what stops them, what are the barriers, what makes it easy, what makes it so difficult? And Therapists have told us that it’s – particularly for adolescents and any – even children, as – younger children as well, but it is really hard, sometimes, to engage young people in therapy. They don’t want to be there, they – this is a weird scenario. They don’t – it’s not a usual setup.
Usually when they’re one-on-one having, kind of, deep, meaningful conversations, they’re in trouble with the Principal at school, or they’re having an intense conversation with their parents, it’s not usually how things work, kind of, kids and adults facing off in a therapy. So, it is a weird situation for children, and it is really hard to engage young people in therapy in this way that’s been traditionally developed for adults. And so, Therapists have told us that they’re scared of actually doing exposure because they’re worried about engagement and alliance with the young person and they’re worried that if they push them to do something that makes them scared, that they won’t come back. They’re worried that it might impact on that alliance, the child won’t like them if they make them scared. They’re also worried, too, that there’s a lot of other comorbidities.
If a child presents with a lot of fears and there’s also depression or eating – body image issues that – or there’s so many comorbidities that really – you know, “The research has only been conducted with kids with anxiety problems, the research isn’t really a good fit for my client. So, I’m not going to use the research evidence because it doesn’t fit for my – for the young person that I’m seeing.” Also concerns around doing exposure for more generalised worries, that children with what we refer to as generalised anxiety, it’s, kind of, worrying about everything, worrying about school performance, about their friendships, about what’s happening in the world. Kind of, just that worrying about everything, that you can’t do exposure with those types of anxieties, a common misconception I’ll talk about in a minute. And also, a lot of concern around using exposure in children with trauma backgrounds, if they PTSD or have experienced trauma in the past, that using exposure – is the belief that it’s not okay to use exposure in children with trauma backgrounds.
So, let’s have a look at what the research says about all of those misconceptions. There’s still a lot of work that really needs to be done in this area, but from the research we have so far, we know that alliance and engagement is actually stronger in therapies that include exposure. This is some work done by Edna Foa and also Carly Johnco, showing that engagement is really strong when we know – when Therapists use treatments that work and you can get change quickly, that actually, alliance and engagement is stronger than – and this – these studies compared client-centred therapy. So, it wasn’t – it was a really client-focused therapy, but actually, engagement and alliance was stronger with exposure therapy. We also know that exposures work with GAD.
In a study I conducted with my team, actually exposure-based therapies were even more effective than for separation anxiety. They work well, if not better, compared to other anxiety disorders, and we’ll talk about some – later, some other strategies that can be used for those generalised worries. As for the question of a comorbidity, we know that particularly for depression comorbidity, it can impact on the young person’s end-state following exposure-based therapy. So, there’s still – if you have depression, they’re still more likely to be severe – more severe at the end of treatment, but we know that the rate of change is just as quick as those children without depression. So, the rate of change is similar. We know, also, that ADHD doesn’t impact on the efficacy of exposure, as well, and treatments with exposure. So, the evidence that not using exposure treatment when there are comorbidities doesn’t really hold up here.
And also, exposure-based therapies we know are really effective for young people with PTSD. They can be used effectively to treat trauma system – trauma symptoms. So, to me, it’s really important that, you know, we – when we’re conducting exposure therapy, that the young person is safe and that any therapy that is delivered doesn’t place the young person in a situation in which they are in danger. But when that is done sensitively, we know that exposure therapy is effective, and having a trauma background shouldn’t exclude you from evidence-based therapies and really, that if we, kind of, we make those choices that not delivering exposure-based therapies for young people with trauma backgrounds, they’re not receiving evidence-based therapies and they’re missing out.
Alright, so, where do we go wrong? Why is it that we’re not delivering exposure in community, and why is it not, kind of, working as well, perhaps, when you are delivering exposure? So, I think, kind of, one of the issues is that perhaps we’re trying to deliver exposure or introduce it too late in the session. Often, there’s a lot of strategies that are delivered first, you know, often, in treatment packages, there’s a lot of introduction of coping strategies, relaxation, problem-solving, and then, actually, we don’t introduce exposure until later on in therapy. But what we know, actually, is that it’s the exposure bit that starts to deliver change.
And actually, I want to tell you about a programme my colleagues and I are developing at the moment, Deanna Francis, for children with reading difficulties. We were trying to target reading difficulties and anxiety at the same time, so we’d spend each time – each week in the therapy session focusing on both a child’s reading difficulties with, kind of, a package, was addressing their reading, as well as their fear of anxiety. And interestingly, in our pilot versions of this programme, we thought we wanted to build the child’s skill first before that we started getting them to read in front of others, and we wanted to, kind of, establish these new positive memories rather than, potentially, getting them to read awkwardly in front of others, to have a negative experience.
So, we did this, but what we found – we found really great effects on their reading, but we didn’t shift their anxiety. We, kind of, waited too late, and this is what we think happened, is that we, kind of, focused on the other coping strategies and they didn’t get sufficient time in the therapy sessions to actually practice their fear of reading and their worries. So, what we did is we shifted the programme around and introduced exposures much earlier on, and then, we started to get really great shifts in anxiety, as well. So, lessons learnt, we don’t want to leave it too late.
One of the other issues is around – Therapists might, kind of, introduce the idea of exposure and start with the easy situations, the situations the child’s comfortable with, that might be a little bit challenging but not too much, and they, kind of, gradually move up to the challenging ones. But if you’ve, kind of, got a limited number of sessions, either you’re limited by, kind of, the practice that you’re in, or the funding model, then, you know, by the time you get up to the more challenging exposures, you, kind of, maybe run out of time, or maybe that other issues might start to hijack the sessions.
So, a child might, you know, come in with other issues and then, you may not ever get to the challenging situations. So, a child might leave the therapy without actually having addressed those challenging situations. And as I mentioned, that study before looking at the long-term efficacy of CBT treatments by Tara Peris, and she showed that when Therapists reported spending more time on those difficult, challenging exposures, so, kind of, mild to moderate ones, rather than the easy ones, there were better outcomes [audio cuts out – 2642] – to remember.
Often Therapists also might not pick up situation – or might, kind of, pick situations, sorry, that the child’s facing that doesn’t actually approach the situation, or doesn’t actually face the situation, so, kind of, doesn’t target the fear. So, you know, it might be that a child’s fearful of making a mistake, reading in class, and so, they practice answering questions in class, but don’t actually ever deliberately make a mistake. So, they’re not actually really facing the situation that they’re scared of. So, they don’t actually get to create a new memory about, you know, deliberately making a mistake or being able to, kind of – sorry, yeah, being able to create a new memory about making a mistake so that, then, they can, you know, have different – a different view of that, or different memory of it. So, what we actually do is getting – get children to deliberately make a mistake, to see if they can handle it, [audio cuts out
45] – we do in our exposure. So, making sure that you’re picking a situation where the child’s confronting the fear. We think that might be one place where people go wrong. And finally, what our – in some of the research that we’ve been doing with parents and young people, they’ve told us a lot about their lived experience of exposure therapy and doing homework. And often, they feel really ill-equipped when they walk out of the session, to actually do exposure on their own. Parents feel really at a loss without the Therapist there, and young people don’t really know what role the parents have to play and what their role is. Parents, too, have told us that, that they don’t know what to do. Even though we, kind of, go through structured information for parents, often that they feel like they’re not as equipped and they’re not sure how they should be best supporting their – the young person.