Have you ever seen, or experienced, a sudden burst of laughter for no reason, or an uncontrollable outburst of crying? Sometimes, you react more to something small than to the sadness or happiness you feel. If you have had this experience, it is important to know about the condition we are going to talk about today, Pseudobulbar Affect, or PBA for short.
Do you know what Pseudobulbar Affect (PBA) is?
Simply put, Pseudobulbar Affect (PBA) is a neurological condition that causes you to laugh or cry uncontrollably, in a way that doesn't match your true feelings. Imagine that you're in a sad situation, but you can't stop laughing. Or, you're at a happy party, but you feel like crying all the time. This is the main symptom of PBA.
This condition is caused by damage to the brain or by another neurological condition. For example, a person with a disease like ``Amyotrophic Lateral Sclerosis (ALS)`` can develop this condition.
Sometimes, even though this laughing or crying may seem appropriate at the time, it is harder to control than usual. Also, these emotional expressions can be very intense and last longer than usual . It's like turning on a tap and you can't stop it.
PBA is also called by several other names:
- Emotional lability
- Pathological laughing and crying
- Involuntary emotional expression disorder
- Compulsive laughing or weeping
- Emotional incontinence (inability to control emotions)
PBA can have a huge impact on your life, your family, and those who care for you. It can cause feelings of shame, anxiety , and even isolation.
How common is PBA?
Researchers estimate that between 2 and 7 million people in the United States alone suffer from PBA. The reason for this wide range in numbers is that PBA varies in severity and is not recognized properly. It is possible that people with this condition in Sri Lanka are also not receiving treatment due to ignorance.
Who is most affected by PBA?
This condition, called Pseudobulbar Affect (PBA), can affect anyone of any age, including children and adults, with some form of neurological disease in the brain.
As studies have shown:
- About 50% of people with Amyotrophic Lateral Sclerosis (ALS) may have PBA.
- About 48% of people with traumatic brain injury (TBI) or serious brain injury.
- This condition affects about 46% of people with Multiple Sclerosis (MS).
Is Pseudobulbar Affect a mental illness?
Some people may think that PBA is a mental illness. Because these things like laughing and crying are related to our mood. However, because PBA is caused by damage to the neural circuits in the brain , it is classified as a `neuropsychiatric syndrome`, that is, a collection of neuropsychiatric symptoms. Simply put, PBA is a disorder of emotional expression that occurs with a brain condition.
What are the symptoms of PBA?
To understand PBA, it's important to know the difference between 'mood' and 'affect'. Mood is the feeling you have inside yourself. That is, things that only you can feel, like sadness, anger, or happiness. Affect is the way your feelings are expressed outwardly, like smiling or crying, that others can see.
Thus, the main symptom of Pseudobulbar Affect (PBA) is the expression of emotions (affect) that does not match your mood or the intensity of your feelings. The most common symptoms are crying and laughing.
This laughing and/or crying could look like this:
- Unexpected, sudden, and out of control.
- Too much for the event. (e.g. laughing for hours at a small joke)
- It occurs for no apparent reason.
Sometimes, uncontrollable anger or frustration can arise.
Because PBA is often associated with an underlying neurological condition such as a brain injury or amyotrophic lateral sclerosis (ALS), people with PBA may also have other symptoms related to the underlying condition.
What are the causes of PBA?
Researchers still don't know the exact cause of Pseudobulbar Affect. They think it's caused by disruptions in the neurological pathways in our brain that control the expression of emotions.
There are several neurological conditions associated with PBA that can cause these disturbances:
- Traumatic brain injury
- Amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's disease.
- Multiple sclerosis (MS)
- Alzheimer's disease and other forms of dementia
- Stroke
- Parkinson's disease
- Brain tumors
- Epilepsy
- Wilson's disease
What parts of the brain does PBA affect?
It is thought that PBA most likely affects various areas of the brain along the cerebro-ponto-cerebellar pathway.
Part of this pathway is our cerebellum . It monitors our emotional responses and ensures that they are appropriate for the social situation. If the neural pathways from certain areas of the brain to the cerebellum are disrupted, we may lose control over our emotional expression.
Additionally, the following neurotransmitters may be involved in PBA:
- Serotonin
- Norepinephrine `(Norepinephrine)`
- Dopamine
- Glutamate
- Acetylcholine `(Acetylcholine)`
How is PBA diagnosed?
Pseudobulbar affect (PBA) can be a tricky condition to diagnose . Even doctors can sometimes mistake it for a mental illness – especially depression or bipolar disorder.
Currently, there is no specific test to diagnose PBA. Doctors diagnose the condition based on your:
- Symptoms
- Medical history, especially regarding neurological diseases
- Mental health history
- Information from physical examination
All of this is carefully studied and a conclusion is reached.
Why is PBA confused with depression?
Pseudobulbar affect (PBA) is a condition that is most commonly confused with mental illness, especially depression.
This is what happens when you have frequent crying episodes, a major symptom of PBA. People with PBA can also experience depression for other reasons, as well as because of the PBA condition itself. However, compared to depression, crying episodes in PBA:
- It starts suddenly, like an explosion.
- It only lasts a short time.
- It is usually not associated with long-term internal sadness.
Although people with depression feel sad all the time, they are less likely to cry frequently. Even if they do, it lasts longer than in PBA. Also, other symptoms of depression, such as insomnia and loss of appetite, are not seen in PBA.
What are the treatments for PBA?
There is no cure for Pseudobulbar Affect (PBA). However, there are medications that can help control it. The main goal of treatment is to reduce the intensity and severity of these uncontrolled laughing and crying episodes.
The types of medications that doctors prescribe for PBA are:
- Dextromethorphan/quinidine sulfate (Nuedexta®): This is the first drug approved by the FDA (US Food and Drug Administration) to treat PBA. It contains a cough medicine (dextromethorphan) and a very low dose of a drug previously used to treat heart rhythm disorders (quinidine sulfate).
- Antidepressants: Antidepressants such as tricyclic antidepressants, selective serotonin reuptake inhibitors (SSRIs), and norepinephrine/serotonin reuptake inhibitors (SNRIs) can help control PBA symptoms. However, these are usually given at lower doses than those used for depression.
Like all medications, side effects can occur. You should work with a doctor to choose the treatment plan that is best for you.
Can PBA be prevented?
Because Pseudobulbar Affect is caused by brain damage and neurological conditions, there is nothing that can be done to prevent it from occurring.
What is the prognosis for PBA?
The outlook for PBAs varies from person to person.
If the condition is not recognized and treated, people with PBA are at increased risk of:
- Depression
- Anxiety
- Decreased social connections
- Decreased quality of life
Medication can help control symptoms. It can be difficult to diagnose and treat. However, it is important to speak up for yourself and try. The doctors who know best about this condition are neuropsychologists, neurologists, and psychiatrists.
How long does Pseudobulbar Affect last?
Pseudobulbar affect is usually a chronic condition, as the underlying medical conditions that cause it (e.g., multiple sclerosis, Alzheimer's disease) are often long-lasting.
What can you do to live successfully with PBA? (Coping Strategies)
Here are some tips to help you cope with PBA and control your sudden bursts of laughter/crying:
- When the laughter/crying comes, take deep breaths until it subsides.
- Think about something else at that time, focus on it.
- Relax your shoulder and facial muscles and reduce tension.
- If possible, change your position.
- Tell others about your situation so they know what to expect and won't misunderstand you.
- If PBA is affecting your mental health, see a mental health counselor .
When should I see a doctor?
If you have PBA, your treatment isn't working well, or you're having unpleasant side effects, talk to your doctor about a new treatment.
Laughing and crying uncontrollably can be challenging, embarrassing, and difficult for others to understand. But remember, Pseudobulbar Affect (PBA) is a medical condition, and it can be managed with medication. If you have symptoms of PBA, talk to a doctor. They are here to help you.
The most important things you need to remember from what we have discussed (Take-Home Message)
Okay, so here are the most important things you need to remember about Pseudobulbar Affect (PBA) that we talked about today:
- PBA is a neurological condition that causes you to laugh or cry uncontrollably, in a way that doesn't match your feelings.
- This is often associated with another neurological disease (e.g. ALS, MS, Stroke, TBI).
- PBA is not a mental illness itself, but it can be confused with conditions like depression.
- Although there is no complete cure for this, there are medications to control the symptoms.
- If you have these symptoms, it is very important to seek medical advice without being ashamed or afraid.
- Informing your loved ones about this situation will make things easier for both you and them.
I hope this information is helpful to you. If you have any further questions regarding this, please do not hesitate to speak to a doctor.
` Pseudobulbar Affect, PBA, Neuropathy, Uncontrollable Laughter, Uncontrollable Crying, Emotional Lability, Brain Disorders
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