Introduction 

Intermitted explosive disorder (IED) is a psychological disorder and falls under the umbrella of personality disorders. It is characterised by intense anger and aggressive outbursts but is not to be confused with anger issues, as it goes beyond the failure to control anger. IED is a biological adaptation to previous stress or trauma in which the brain learns to respond to threatening situations with intense outbursts; it can be compared to an extreme flight or fight response. 

Therapeutic interventions such as Cognitive Behavioural Therapy (CBT) are a common treatment used for IED. The different facets of CBT can help restructure this flight or fight response and equip the patients with skills and coping mechanisms that can help them manage their outbursts in the short and long term.

This article will talk about IED and its challenges, how CBT can help, what makes it effective, and some considerations in the use of CBT for the treatment of this disorder.

Understanding Intermittent Explosive Disorder (IED)

Intermittent explosive disorder (IED) is a psychiatric condition in which the patient experiences frequent episodes of anger and aggression to an amount that is disproportionate to the stressor or trigger. Episodes often occur suddenly and unpredictably with no warning but can vary in their nature, which can be physical aggressive behaviours or angry verbal outbursts. These outbursts usually less last than 30 minutes and may occur often or be separated by weeks or months.¹

According to the Diagnostic and Statistical Manual of Mental Health, Fifth Edition (DSM-5) the diagnosing criteria for intermittent explosive disorder are as follows: 

• Recurrent outbursts resulting from a failure to control aggressive impulses. These imply behavioural outbursts such as damaging property, physical injury to themselves, or others or verbal aggression such as verbal arguments, fights, and temper tantrums
• The magnitude of aggression expressed is grossly out of proportion to the provocation or any other stressors
• The aggressive outbursts are not better explained by another mental disorder, medical condition or as the result of substance abuse
• The recurrent episodes of rage are causing distress or impairment in the person's personal, social, occupational life, or other important areas of functioning
• The last criteria suggest that the outbursts are not premeditated

Additionally, the DSM-5 discusses the timeline of the development of IED, specifying that this would occur during late childhood or adolescence, although it can sometimes be developed in adulthood. If left untreated, the disorder may persist over many years and it can have dire consequences for a person's relationships, employment status, legal status, physical health, and overall quality of life.²

Impact on life 

Being close to someone who is suffering from IED can be very difficult as these episodes can sometimes result in harm to the person, other people, or animals and make others fear for their safety. The patient may suffer long-term effects of actions they may have taken during episodes, impacting various areas of their life.³ Here are some key aspects to consider:

1. Social and interpersonal relationships: frequent aggressive outbursts can put a strain on relationships with family members, friends, romantic partners and even colleagues making it difficult to maintain healthy relationships. The intensity and unpredictability can cause fear, anxiety, and resentment leading the patient to be socially isolated
2. Employment or academic performance: IED can interfere with a person's career or academic performance as it can lead to disciplinary action, job loss, academic failure or even expulsion as a result of outbursts. These can result in financial instability a loss of self-esteem, and higher levels of stress
3. Emotional and psychological well-being: IED can be a frustrating condition, in which the patient may feel a lot of frustration and helplessness due to their inability to control this condition. They may feel guilt shame or embarrassment after the outbursts and facing the consequences of the condition. These factors can contribute to the development of depression, anxiety, and substance abuse disorder

Cognitive Behavioural Therapy (CBT)

To treat IED often medical personnel will recommend a combination of medication, therapy, and lifestyle changes to decrease the intensity and recurrence of outbursts. Pharmacological interventions are limited in their effect, however, psychological interventions including CBT have shown improvement in anger management behaviours and an increase in positive behaviours.⁴ CBT has multiple roles in the treatment of IED, but how can CBT help? 

1. Psychoeducation– psychotherapy is the process of teaching the client about their illness, progression, treatment etc. It ensures that the patient has insight into their illness, it can teach them to identify triggers and underlying issues and therefore prevent relapses. Psychoeducation also plays an important role in helping patients engage in crisis management and prevention by highlighting the importance of treatment⁶ 
2. Cognitive restructuring aims to identify automatic patterns of behaviour, automatic thoughts and their sources. These patterns of behaviour and automatic thoughts are usually distorted or irrational beliefs that contribute to anger and aggression. Through cognitive restructuring techniques, individuals learn to replace maladaptive thinking patterns with more realistic perspectives⁸ 
3. Behavioural experiments transfer learned skills into the real world. They encourage testing the validity and truth of negative beliefs and maladaptive thoughts. This aims to give the patient a better understanding of the relationship between their thoughts, emotions, and actions by collecting data and analysing outcomes³ 
4. Anger management- in IED, CBT teaches ways of managing frustration and anger in healthy ways such as relaxation techniques (belly breathing, progressive muscle relaxation), problem-solving, assertiveness training, and communication skills to express emotions^4,9 
5. Stress management techniques- CBT teaches to effectively cope with stressors and triggers contributing to explosive episodes. This may involve identifying stressors, developing coping strategies (e.g., time management, problem-solving, relaxation techniques), and practising self-care activities to reduce overall stress levels^3,9
6. Relapse prevention- CBT highlights the importance of developing strategies for long-term management and maintaining progress over time. CBT can teach patients to identify early signs of relapse, create a management plan and implement strategies in high-risk situations⁴ 

CBT has low variation in its effectiveness, meaning that there is little variation in how effective it can be for IED patients regardless of considerations such as gender, age, ethnic background, and other comorbid disorders.⁴ A pilot study also found that it is efficacious in an individual and group modality.⁷ Relaxation treatments in addition to CBT can also be highly effective.⁸ 

CBT emphasises the importance of managing symptoms, breaking down unhealthy patterns of thought and behaviour, developing healthy coping mechanisms and improving the overall quality of life. By targeting both cognitive and behavioural aspects of the disorder, CBT can help individuals gain better control over their emotions and behaviours, leading to long-lasting improvements in functioning and well-being making CBT an effective intervention.

Challenges and considerations

Although CBT is a great treatment as shown by research and engagement from patients, we must acknowledge some of the challenges and considerations that patients may face such as feelings of shame, embarrassment or scepticism. Patients may be resistant to attending an initial assessment or adhering to therapy sessions as they may be questioning the effectiveness of the treatment or may find it hard to build a rapport with the therapist, and in the case of group therapy, the rest of the group.^4,5 

Therapy is also not an easy process, patients may have difficulties recognising or articulating their thoughts feelings and situations leading to outbursts, which can lead to the patient feeling discouraged, frustrated and questioning the therapeutic process. It is important for therapists to use engaging techniques and strategies such as behavioural experiments and self-monitoring techniques to help the client identify triggers. 

Some patients may also lack the ability to emotionally regulate themselves, making it difficult for them to engage in managing techniques when feeling intense emotions. In these cases, techniques such as mindfulness exercises and distressed tolerance skills can help them cope and effectively manage their emotions.⁴

Comorbid conditions that co-exist with IED such as anxiety, depression or substance abuse can make the treatment of IED more difficult. Addressing these comorbid conditions alongside IED may require a comprehensive and integrated approach that targets multiple symptoms and underlying issues.⁷

Maintaining progress over the long term and preventing relapse is also a challenge and requires work on the patient’s part as well as the provision of adequate tools from the therapist. Therapists may provide ongoing support for maintenance however this is not sustainable for everyone; to resolve this issue therapists may provide tools to help recognise signs of regression and develop a relapse prevention plan. 

Although these challenges are present and may affect the quality and outcome of the treatment there are ways in which the therapists can counteract, minimise, and resolve these concerns. 

Summary

In conclusion, Intermittent Explosive Disorder (IED) presents significant challenges to individuals' lives and relationships, characterized by intense anger and aggression that can have far-reaching consequences. However, CBT offers a beacon of hope for those grappling with this disorder. By targeting the underlying cognitive and behavioural patterns that contribute to IED, CBT equips individuals with valuable skills and coping mechanisms to manage their symptoms effectively.

Through psychoeducation, cognitive restructuring, anger management techniques, and stress management strategies, CBT empowers individuals to regain control over their emotions and behaviours. The evidence supporting the effectiveness of CBT for IED is promising, demonstrating its ability to bring about positive changes in both the short and long term.

Nevertheless, implementing CBT for IED is not without its challenges. Patients may initially resist therapy, struggle to recognize triggers, or lack the emotional regulation skills necessary for success. Addressing these obstacles requires patience, empathy, and a tailored approach that meets the individual needs of each patient.

Despite these challenges, CBT offers a reliable and effective treatment option for individuals with IED, providing them with the tools and support needed to improve their overall quality of life. By embracing the principles of CBT and working collaboratively with skilled therapists, individuals with IED can embark on a journey towards healing and recovery.