Children often have a fear of concrete things, such as spiders. Such specific fears often peak between 7 and 9 years of age and decrease in children 10 years and older. For some, however, their fear persists and grows into a phobia.
A specific phobia is an intense and persistent fear caused by the presence of – or anticipation of – a specific object or situation. Exposure to this provokes a direct anxiety response or panic attack, so the stimulus is dodged or, when this is not possible, undergone with extreme stress. This avoidant behaviour hinders the school life, social life and family life of the child. According to Lang's three-part model (1998), the fear response consists of three components: cognition (catastrophic thoughts), physiology (activation of the autonomic nervous system including increased heart rate, sweating, shaking and breathing faster) and behavior (crying, running, freezing or clinging to the parent).
There is a high prevalence, as 5-10% of children and adolescents suffer from a specific phobia. The average age at which it starts is 9 to 10 years. Animal phobias usually start at age 7, blood and wound/injection phobias at age 9, situational fears around the age of 13 and claustrophobia around 20 years of age. Regularly, in 25-72% of cases, there is a comorbid diagnosis, especially other anxiety disorders (other phobias, GAD, SAD, social anxiety disorder and OCD) but sometimes also mood disorders and externalizing disorders (such as ODD and ADHD). The comorbidity does not seem to have a negative effect on the outcome of the treatment!
Twin studies show that phobias are common in families, with children more likely to develop the same kind of specific phobia as their parent. The specificity of this genetic vulnerability is still unclear (some studies suggest a shared vulnerability to animal phobias and situational phobias and another genetic vulnerability to blood and wound/injection phobia; other studies suggest a common genetic risk factor). Parental factors also play a role in the development of phobias in children. Parents of anxious children are often overinvolved and overprotective in their parenting style. As a result, the children do not learn that the situation is less bad than they expect, or that they are actually well able to deal with the situation. According to Rachman's theory (1976, 1977), three learning pathways are associated with developing a phobia:
- Direct/classic conditioning (a direct negative experience with the stimulus)
- Vicarious conditioning (modelling, seeing how someone else like a mother or a father reacts to a specific stimulus)
- Encoding negative information about stimuli
In recent years, more and more research has been conducted on the role of the emotion ‘disgust’ in the emergence and perpetuation of anxiety disorders. This research has focused on animal phobias (especially spiders) and blood and wound/injection phobias. Disgust would interact with anxiety and result in more avoidant behavior, especially in small animal phobias such as spiders. More research into the role of disgust is needed.
Ideally, multiple methods (a clinical/diagnostic interview, questionnaires, observation) and multiple informants (child, parents, teacher) are combined to get a complete picture of the nature of the disorder. Given the high comorbidity, many measurements are needed to facilitate differential diagnosis (such as a SAD versus a fear of being in the dark) and to identify comorbid problems.
A BAT – Behavioural Approach Test – is a standardized test in which the client is asked to approach a dreaded object or feared situation. Although it is often a lot of hassle to organize, there is a unique possibility for the therapist to observe the anxiety response immediately. For example, the child can be asked to enter the room, walk towards the box, open the box, pick up the spider and hold the spider for 20 seconds and calmly put the critter back in the box. The child only has to do what he/she feels comfortable with. The extent to which the child performs the actions gives insight into the degree of avoidance. At various times during the BAT, the therapist may ask to rate the anxiety level on a scale from 0 (no fear) to 10 (very anxious).
The expectations and catastrophic cognitions maintain the avoidant behavior. Therefore, these should be carefully analysed before starting treatment. In order to obtain an objective measure of phobic beliefs, the child may be asked to indicate on a scale how likely they are to believe in the conviction (probability), how bad it would be if it really happened (danger) and how confident they are that they could cope with it (self-efficacy).
Exposure therapies are very effective. In addition, therapies such as systematic desensitization (SD), encouraged practice and (participant) modelling are also widely used and proven effective.
Systematic desensitization (SD), developed by Wolpe (1958), is based on the fact that one might not experience two competing emotions (such as fear and relaxation) simultaneously. The therapist confronts the patient with the dreaded stimulus, while the child simultaneously learns an anxiety-reducing technique (especially relaxation techniques, but also nice food and humour are ways to reduce the anxiety response). In recent years, there has been a lot of criticism of this "counter-conditioning" hypothesis of SD.
RP - reinforced practice, or also called contingency management is based on the principles of operant learning. Avoidant behaviour is addressed by encouraging the child to approach the most feared situation step by step through a hierarchical ladder compiled by the therapist. The avoidant behaviour is changed by manipulating the consequences of the behavior. Together with the child, the therapist develops a list of desirable rewards (stickers, something tasty to eat) when the next success is achieved. Unlike SD, there is no competing emotion. The goal of SD is to stop the child from experiencing fear; the purpose of RP is to allow verifiable levels of anxiety and reduce avoidant behavior in that way.
Modelling, based on social learning theory, means that the therapist demonstrates how the dreaded object or the dreaded situation can be approached and how to deal with it. Participant modelling (PM) extends this by encouraging the observant to interact with the model and the dreaded stimulus. Like RP, PM has not been tested as a single form of therapy, but it does have additional value. PM has the advantage of building up skills (for example, how to remove a spider from home) and breaking up exposure into smaller tasks (letting the child hold his hand under your hand while your hand holds the spider). It is often thought that PM is only effective in animal phobias, but that is not true.
CBT focuses on addressing and changing avoidant behavior and physiological arousal associated with avoidance, catastrophic cognition, attention biases and cognitive biases. CBT usually includes behavioural techniques including gradual exposure, use of rewards, PM (participant modelling), psycho-education and behavioural skills as well as cognitive techniques to address cognitive biases and biases. CBT, also the "one session treatment" (OST), is the first-line treatment for specific phobias.
OST is an intensive, 3-hour treatment of specific phobias for both children and adults. Such treatment includes psycho-education, skills training, cognitive restructuring, gradual and in vivo exposure, PM and RP. Prior to this treatment, there is a 45 minute session with the child and the parent in which the phobic cognition is mapped, a gradual exposure hierarchy is compiled, information is given about the OST session and if necessary, motivation is increased. The child is given the role of "detective" who has to test cognitions by conducting experiments. Nothing is rushed during the OST, and therefore there is no standard format for structuring the OST session.
A significant proportion of children and adolescents, as many as 20-50%, do not fully respond to treatment with CBT. This does not seem to be related to the sociodemographic data of the child, the severity of the diagnosis, or the type of specific phobia. It is unclear what factors are involved. According to Ollendick and colleagues (2009), there is an algorithm available to make the right treatment-related decisions.
Children often have a fear of concrete things, such as spiders. Such specific fears often peak between 7 and 9 years of age and decrease in children 10 years and older. For some, however, their fear persists and grows into a phobia.