A seizure aura is a feeling or sensation a person may experience during the initial phase of a seizure.
Seizure auras are a type of focal seizure, meaning they affect only one side of the brain. Sometimes, people who experience epilepsy with aura might have an aura that does not progress any further.
Usually, but not always, a seizure aura precedes additional seizure symptoms, which can involve one side of the brain — a focal or unilateral seizure — or both sides of the brain — a generalized seizure.
There are a number of different symptoms that can be part of a seizure aura. Common symptoms include a strong sensation of déjà vu, a sudden and intense feeling of fear or joy, or unusual tastes, smells, or visual disturbances.
This article describes what seizure auras are and what they can feel like.
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A seizure aura is a
The symptoms can differ depending on where the seizure begins in the brain. Common symptoms include:
- sudden and intense feelings
- sensory disturbances
- uncontrollable bodily sensations or movements
A seizure aura is itself a type of focal seizure. Focal seizures are those that occur on one side of the brain. A focal seizure can spread to both sides of the brain, resulting in a more widespread generalized seizure.
Before a seizure, an aura can act as a warning sign that they are about to have additional seizure symptoms. Sometimes, a seizure remains focal, affecting just one side of the brain.
Sometimes, an aura can progress beyond the aura symptoms and may involve movements on one side of the body, such as tonic-clonic movements.
One 2023 review estimated that between
A seizure aura can cause different symptoms, even for the same person. Common symptoms include:
- a sense of déjà vu
- a sudden and intense feeling of fear or joy
- the sensation of a “wave” traveling through the head
- an unusual taste or smell
- visual disturbances, such as hallucinations or seeing colorful or flashing lights
- numbness or tingling sensations
- stiffness or twitching in part of the body
- a sensation that an arm or leg feels bigger or smaller than it is
- jamais vu, which is the feeling that a person, place, or thing is new or unfamiliar when it is not
- racing thoughts
- dizziness or lightheadedness
- headaches
- nausea, or a feeling of the stomach rising
For some people, a seizure aura can be a warning sign of an imminent tonic-clonic seizure. As such, people should take steps to remain as safe as possible in case a tonic-clonic seizure occurs.
People should try to get to a safe place where they will not get injured if they lose consciousness. Ideally, this would mean lying on a soft carpet or rug, away from furniture or other objects that could cause injury during a seizure.
If possible, the person should also notify someone that they may be about to experience a seizure. That way, the other person can help them stay safe and prepare to phone for an ambulance, if necessary.
The
General first aid tips
The following are general first-aid tips for managing any type of seizure:
- stay with the person until the seizure ends or the person regains consciousness
- help the person to a safe place after the seizure has ended
- calmly explain to the person what has happened once they are fully alert and able to communicate
- comfort the person
- check to see if the person is wearing a medical bracelet or other emergency information
- help ensure the person gets home safely following the seizure
First aid tips for tonic-clonic seizures
A seizure aura can occur before a tonic-clonic seizure. A person experiencing a tonic-clonic seizure may cry out, fall, or shake. They may also lose consciousness.
The following are first aid tips for dealing with tonic-clonic seizures:
- ease the person to the floor to prevent them from falling
- turn the person gently onto their side to help them breathe
- loosen neckties or other objects around the person’s neck that may impair their breathing
- clear the area around the person to help prevent injury from hard or sharp objects
- place a folded jacket or other soft and flat object beneath the person’s head
- remove the person’s eyeglasses if they are wearing them
A person should also time the seizure and call for an ambulance if the seizure lasts longer than
Below are some answers to frequently asked questions about seizure auras.
What stage of the seizure is the aura?
According to the Epilepsy Foundation, a seizure aura is the first symptom of a seizure.
Sometimes, a seizure aura does not lead to additional symptoms. Usually, a seizure aura precedes further seizure symptoms that can involve one or both sides of the brain.
Sometimes, a seizure aura can progress to a generalized seizure, meaning it involves both hemispheres of the brain.
How long after an aura do you have a seizure?
Seizure auras can last from between a
Is anxiety a symptom of a seizure aura?
According to the Epilepsy Foundation, many people experience anxiety as a symptom of their seizure aura.
What’s the difference between an epilepsy brain aura and focal aware seizure (FAS?)
An aura includes symptoms that a person may experience before a seizure. And sometimes the aura is also defined as a type of FAS.. This is an initial stage where a seizure starts in one single part of the brain. From here a seizure may progress.
A seizure aura is a feeling or sensation a person may experience during the initial stages of a seizure. Sometimes, a seizure aura does not progress beyond an aura.
A person who experiences a seizure aura may want to take steps to ensure they remain as safe as possible in case their seizure progresses.
If possible, they should lie in a safe space, away from items that could cause injury. It is also a good idea to notify another person about the possibility of an imminent seizure.