Focal epilepsy

Focal epilepsy, also called partial epilepsy, is a seizure disorder in which seizures are preceded by an isolated disturbance of a cerebral function. Such disturbances may include a twitching of a part of the body, such as a limb; a deceptive or illusory sensation or feeling, or some other mental disturbance. It is a subtype of epilepsy.

Causes

The cause of the isolated disturbances results from the electrical signals

Classification

International Classification of Partial Seizures

1. Simple (with no interruption to consciousness)
2. Complex (interrupts consciousness)
3. Partial seizures evolving into a secondary generalized epilepsy (known as generalized seizure)

References

• "Focal epilepsy". TheFreeDictionary.com. 
• "Types of epilepsy". WebMD. 
• "Focal epilepsy". Merriam-webster.com.