A seizure is an abnormal change in the electrical activity of the brain. These electrical changes may occur in or near the part of the brain called the temporal lobe. This is known as a complex partial seizure
The reason for the electrical disturbance causing a seizure is often not known. Complex partial seizures are one of the most common types of seizures. Unlike other seizures, complex partial seizures usually don't make people completely lose consciousness. However, any seizure may spread over the entire brain. This can result in a loss of consciousness or convulsions.
Any of the following conditions may be the cause of a complex partial seizure:
Most often, the cause is unknown.