Understanding Focal Seizures
Focal Seizures with Preserved Consciousness
These seizures involve networks within one side of the brain while consciousness remains preserved. The person may experience changes that others cannot easily see.
Recognizing the older names
This page was previously called Focal Seizures with Retained Awareness. Other names you may encounter include “focal aware seizures” and “simple partial seizures.”
ILAE’s 2025 classification uses consciousness, assessed through awareness and responsiveness. Ask your healthcare provider to explain your seizure type.
About this information: This webpage is subject to continuous review by Epilepsy Ontario to help keep the information current. This material is for informational purposes only and should not be used for self-diagnosis or as a substitute for professional medical advice, diagnosis or treatment. Consult your healthcare provider about your own health and care.
Different Experiences
What Can Happen During the Seizure?
The features depend on the brain networks involved. For some people, the experience is similar each time. These examples describe possible features, not a diagnostic checklist.
Autonomic changes
These affect body functions that usually happen automatically. Examples include a rising sensation in the stomach, nausea, sweating, flushing or changes in heart rate.
Emotions & experiences
A person may have a sudden emotion, such as fear, or an unusual sense of familiarity, such as déjà vu.
Movement
Jerking, twitching or other movement changes may affect a particular body part. Movements can sometimes spread from one area to another.
Sensation
Examples include tingling, unusual smells or tastes, buzzing sounds or visual changes. Some experiences may be noticeable only to the person having the seizure.
How Long Does It Last?
These seizures are often brief, commonly lasting less than two minutes, but duration and frequency vary.
Some people recover quickly. Do not dismiss an event because the person can describe it or appears alert: it still needs appropriate assessment and care.
What are Auras?
An aura can be a focal seizure with preserved consciousness. It may happen alone or be the first part of a seizure that develops further.
An aura is a seizure, not simply a warning outside the seizure. Not everyone has an aura, and an aura does not reliably predict how an event will develop.
Can the seizure change?
Yes. Seizure activity can spread, and consciousness may become impaired. A seizure may also develop into a focal-to-bilateral tonic-clonic seizure.
Children and auras
Invite children to describe unusual experiences in their own words without suggesting an answer. Share repeated or concerning events with their healthcare provider.
If a child has an action plan, help them understand how to ask for support and move away from hazards when possible.
Could Something Else Cause Similar Symptoms?
Yes. Migraine and other medical conditions can cause similar experiences. A familiar sensation or isolated symptom does not establish that someone has epilepsy.
Seek medical assessment for a possible seizure. A normal EEG does not by itself rule out epilepsy.
First Aid
How Can You Help?
- Stay calm and ask what support the person needs.
- Time the event and help them pause unsafe activities.
- Offer a safe place to sit if they feel unsteady.
- Do not restrain them or put objects in their mouth.
- Follow their seizure action plan and watch for changes.
Use prescribed rescue medication or a VNS magnet only as instructed and trained. Do not assume every event can simply be left to end without help.
Call 911 for a first known seizure, a seizure lasting more than five minutes, repeated seizures without recovery, breathing difficulty or another emergency sign. See the full guidance for other circumstances requiring help.
Assessment & Treatment
Record what happens, how long it lasts, what the person remembers and whether events change. Discuss these details with your healthcare provider.
Treatment depends on the diagnosis and individual needs. If seizures continue or concerns remain, ask about further assessment and specialist advice.
Further reading:
ILAE: Seizure Classification (2025) ·
Epilepsy Foundation: Focal Preserved Consciousness Seizures.
