Ohio Department of Developmental Disabilities

04/19/2024 | Press release | Distributed by Public on 04/19/2024 14:40

System Spotlight: Epilepsy and Developmental Disabilities

April 19, 2024

Autism spectrum disorder (ASD) is a developmental disorder. People with ADS can have challenges with social interaction, communication, and restricted or repetitive behaviors. Epilepsy is a neurological disorder, meaning it affects the brain. People with epilepsy have recurrent seizures, which are sudden, uncontrolled electrical disturbances in the brain.

ASD and epilepsy are two separate conditions. Sometimes a person can have both conditions. When someone has both autism and epilepsy, it's referred to as a comorbid or co-occurring condition.

The relationship between autism and epilepsy is complex and not fully understood. However, research suggests that there may be some common underlying factors for both conditions. Some possible explanations include:

  1. Genetic factors: Both autism and epilepsy have a strong genetic component. Some genetic mutations or variations may predispose people to develop both conditions.
  2. Brain abnormalities: Structural and functional abnormalities in the brain may contribute to the development of both autism and epilepsy. For example, abnormalities in brain regions involved in communication and social interaction may be associated with autism, while abnormalities in regions involved in regulating electrical activity may be associated with epilepsy.
  3. Shared risk factors: Certain environmental factors or prenatal conditions may increase the risk of both autism and epilepsy. For example, prenatal exposure to certain toxins or infections may increase the risk of developing both conditions.
  4. Seizures affecting neurodevelopment: Seizures themselves can affect brain development and may contribute to the development or exacerbation of autism symptoms in some people.

It's important for people with comorbid autism and epilepsy to receive comprehensive care from a multidisciplinary team, including neurologists, developmental pediatricians, psychologists, and other specialists.

Treatment may involve a combination of medications to manage seizures, behavioral interventions to address autism symptoms, and support services to help people with autism and epilepsy and their families cope with the challenges associated with both conditions. Early diagnosis and intervention are key to optimizing outcomes for people with comorbid autism and epilepsy.

Epilepsy can also co-occur in other developmental and genetic syndromes. Here are some facts about these co-occurrences:

  • The co-occurrence of epilepsy in people with intellectual disabilities and other developmental disabilities has received attention because it has a significant negative impact on health, well-being, and quality of life.
  • Epilepsy is a common co-occurring condition in such conditions as Autism, attention deficit hyperactivity disorder (ADHD), genetic syndromes, and more.
  • Approximately a quarter of patients with childhood epilepsy have intellectual disabilities.
  • The prevalence of developmental disabilities (including ASD) in children with epilepsy ranges from 7.1% - 32%, which exceeds that of the general population.
  • Recent studies have shown that the severity of intellectual disability is an important factor in determining the incidence of epilepsy complications in those with ASD.
  • Studies have shown that people with developmental disabilities may have a reduced seizure threshold. This means it may be easier for them to have a seizure in comparison to their peers.

For more information and resources, visit: