Recent Blog Articles

Absence Seizures (Petit Mal Seizures)

December 11, 2018

What Is It?

The brain's nerve cells (neurons) communicate by firing tiny electric signals. During a seizure (convulsion), the firing pattern of these electric signals suddenly changes. It becomes unusually intense and abnormal.  

A seizure can affect a small area of the brain. Or it can affect the entire brain. If the whole brain is involved, it is called a generalized seizure.  

To continue reading this article, you must log in.

Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.

  • Research health conditions
  • Check your symptoms
  • Prepare for a doctor's visit or test
  • Find the best treatments and procedures for you
  • Explore options for better nutrition and exercise
Learn more about the many benefits and features of joining Harvard Health Online »

I'd like to receive access to Harvard Health Online for only $4.99 a month.

Sign Me Up

Already a member? Login ».

Disclaimer:

As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles. No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.