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Seizures in Autism and ADHD: Recognition, First Aid, and Team Planning

Autism and ADHD can co-occur with epilepsy. Learn possible seizure signs, first-aid steps, emergency thresholds, and how families and support teams can document and plan.

By Naysha Sexton Geil, BCBA

seizuresepilepsyautismADHD

> **Medical and emergency disclaimer:** This guide is for general education only. It cannot diagnose a seizure or epilepsy, replace medical care, or provide an individualized treatment plan. If someone may be having a first seizure, a seizure lasts longer than 5 minutes, seizures happen close together, the person has trouble breathing or waking, the person is injured, or the seizure occurs in water, call 911 or your local emergency number. Follow the person's clinician-written seizure action plan when one is available.

Seizures can be easy to picture as falling and shaking, but not every seizure looks that way. Some involve a brief pause, confusion, unusual sensations, repeated movements, or a change in consciousness.

That can make possible seizures hard to recognize, especially when a person already communicates, moves, attends, or regulates in ways that other people may not expect. The safest approach is not to label every unusual moment as a seizure. It is to notice abrupt changes, respond safely, document what happened, and involve qualified medical professionals.

A seizure is not the same as epilepsy

A seizure is a temporary change in brain activity that can affect movement, sensation, behavior, consciousness, or a combination of these. Epilepsy is a medical diagnosis based on a person's history, the likelihood of future seizures, and other clinical information.

One seizure-like event does not automatically mean that a person has epilepsy. Fainting, migraine, sleep conditions, medication effects, low blood sugar, movement differences, and other medical or nonmedical events can sometimes look similar. A clinician may use the history, examination, eyewitness reports, video, an electroencephalogram (EEG), imaging, or other tests as appropriate. An EEG can support an evaluation, but a normal routine EEG does not by itself rule out epilepsy.

What research says about autism, ADHD, and epilepsy

Autism and epilepsy occur together more often than many families realize. A 2022 systematic review and meta-analysis that combined 66 studies estimated that about 1 in 10 autistic people also had epilepsy. Rates varied across studies and were higher in some clinical groups, in adults, and among autistic people with intellectual disability. This is a population estimate, not a prediction about any one person.

ADHD and epilepsy also overlap. A 2023 systematic review and meta-analysis of 63 studies reported a pooled prevalence of ADHD of 22.3% among people with epilepsy and a pooled prevalence of epilepsy of 3.4% among people with ADHD. The authors found substantial variation based on the population and diagnostic methods.

These findings show co-occurrence, not simple cause and effect. Most autistic people and most people with ADHD do not have epilepsy. At the same time, a new or unexplained event should not be dismissed as "just autism," inattention, stimming, or behavior.

What a possible seizure may look like

The International League Against Epilepsy's 2025 classification describes several seizure classes and many possible features. Depending on the seizure, a witness might notice:

  • A sudden pause with reduced responsiveness
  • Staring with blinking, eyelid fluttering, or small repeated movements
  • Sudden stiffening, rhythmic jerking, twitching, or a loss of muscle tone
  • A fall that is not explained by a trip or loss of balance
  • Repeated automatic movements, such as lip smacking, chewing, picking at clothing, or fumbling
  • A sudden change in speech, sensation, emotion, or behavior
  • Confusion, unusual sleepiness, headache, weakness, or a slow return to baseline after the event

No item on this list proves that an event is a seizure. Staring, repetitive movement, delayed responses, or changes in behavior can happen for many reasons. What often helps a medical evaluation is a clear description of what changed from the person's usual baseline, how suddenly it began, how long it lasted, whether the person responded in their usual way, and what recovery looked like.

Do not use painful stimulation, restraint, or repeated demands to "test" whether someone is having a seizure.

Seizure first aid

The CDC's seizure first-aid guidance recommends these basic steps:

1. Stay with the person and stay as calm as possible. 2. Start timing the event. 3. Move hard, sharp, hot, or otherwise dangerous objects away. 4. If the person is falling, ease them to the ground when you can do so safely. 5. If the person is lying down, gently turn them onto one side with the mouth angled toward the ground. 6. Place something soft and flat under the head and loosen tight clothing around the neck. 7. Protect privacy and keep unnecessary onlookers back. 8. After the event, stay nearby, speak calmly, and allow time to recover.

Do not:

  • Hold the person down or try to stop their movements
  • Put fingers, food, medicine, or any object in their mouth
  • Give food or water until they are fully alert
  • Give rescue medicine unless it has been prescribed for that person and you are trained and authorized to follow the written plan
  • Resume tasks or demands before the person has safely recovered

When to call 911

Call 911 or your local emergency number when:

  • The seizure lasts longer than 5 minutes
  • Another seizure begins soon after the first
  • The person has trouble breathing or waking after the event
  • The person is injured
  • The seizure occurs in water
  • This is the person's first known seizure
  • The person is pregnant
  • The person has diabetes and loses consciousness
  • The person's seizure action plan directs you to call
  • You believe there is an immediate threat to life or safety

An individual seizure action plan may include more specific instructions based on the person's history. Follow that plan while staying within your training and role.

What to document after a possible seizure

A short, objective account can be more useful than a confident guess. Record:

  • Date, start time, and duration
  • What the person was doing immediately before the event
  • The first change you noticed
  • Whether the person responded to voice or familiar communication
  • Eye position, breathing, skin color, movement, stiffening, or loss of tone
  • Which body parts were involved and whether one side appeared different
  • Any injury or first aid provided
  • Whether rescue medication or emergency services were used
  • How long it took to return to the person's usual baseline
  • Sleep, illness, fever, missed medication, or a recent medication change, if this information is already known and relevant

If immediate safety is handled and privacy can be protected, a video may help a clinician understand the event. NICE guidance recommends using eyewitness accounts and video footage when possible as part of a specialist assessment. Never delay first aid to record, and share health information only with authorized people.

A seizure log is not a functional behavior assessment. Describe what was observed without assigning intent or deciding that the event was attention-seeking, escape-related, or a seizure. Nurture Guide's resource on medical causes that can look like "problem behavior" offers a broader framework for responding to sudden or unexplained changes.

Build a practical seizure action plan

For someone with diagnosed epilepsy or recurring seizures, ask the medical team for a written seizure action plan. A useful plan may identify:

  • The person's known seizure types and what they usually look like
  • Typical duration and recovery
  • The exact first-aid steps to use
  • When to give prescribed rescue medication, by whom, and how
  • When to call emergency services
  • Emergency contacts and the treating clinician
  • Recovery supports, including communication and sensory needs
  • Who needs training and where the plan will be stored
  • How and when the plan will be reviewed

The Epilepsy Foundation's seizure action plan resources include forms that families can discuss with a medical provider. At school, the plan should be coordinated with the school nurse and appropriate staff. The guide on ABA and IEP school support may help families prepare for broader school-team conversations.

The role of ABA, school, and support teams

A BCBA, RBT, teacher, or caregiver may be in a good position to notice patterns and carry out a safety plan, but they should not diagnose seizures or change medical treatment.

Support teams can:

  • Learn the person's clinician-approved action plan
  • Practice first-aid roles before an emergency
  • Keep observations factual and consistent across settings
  • Reduce noise, crowding, bright light, or demands during recovery when those supports help the person
  • Support the person's communication about pain, unusual sensations, fatigue, or the need for help
  • Share authorized records with the medical team
  • Review whether staff training and emergency supplies are current

Suspected medical events should not be addressed only through a behavior-reduction plan. Clear roles and referrals matter. See interdisciplinary collaboration and referral thresholds in ABA for more on staying within scope while helping the whole team communicate.

What about ADHD medication and seizures?

Do not stop, start, skip, or change ADHD or anti-seizure medication without guidance from the prescribing clinician.

Medication questions are individual. A large 2018 observational study of more than 800,000 people with ADHD did not find evidence that ADHD medication increased seizure risk, including among people with a prior seizure history. A separate 2019 Swedish registry study likewise found no overall increase in acute seizures associated with ADHD medication among people with epilepsy.

These studies are reassuring at the population level, but they do not establish what is right for a particular person. Share seizure history, new events, side effects, missed doses, and all medications or supplements with the prescriber and neurology team.

Questions to bring to the medical team

Families and support teams may want to ask:

  • Could the event described be a seizure, or are other explanations more likely?
  • What details or video would be most helpful if it happens again?
  • Does this person need a seizure action plan?
  • What should count as an emergency for this person?
  • Is rescue medication prescribed, and who should be trained to give it?
  • Could medication effects or interactions be relevant?
  • What recovery supports are appropriate at home, school, work, or therapy?
  • Who should receive the plan, and when should it be updated?

Key takeaway

Autism or ADHD does not make every unusual movement, pause, or behavior a seizure. It also should not be used to explain away a sudden change that may need medical attention.

Notice the change, protect the person, time the event, follow the action plan, document only what you observed, and involve qualified medical professionals. That combination supports safety without turning observation into diagnosis.

Studies and trusted resources