[6] In focal onset aware seizures, a small part of one of the lobes may be affected and the person remains conscious.

A focal impaired awareness seizure affects a larger part of the hemisphere and the person may lose consciousness.

Individuals with multiple focal seizures typically have a condition known as temporal lobe epilepsy.

[8] Simple partial seizures are a very subjective experience, and the symptoms vary greatly between people.

[10][failed verification] Some common symptoms of a simple partial seizure are:[7][failed verification] Hallucinations may occur during focal aware seizures, but they are differentiated from psychotic symptoms by the sufferer's awareness that they are hallucinations.

They involve a progression of the location of the seizure in the brain, which leads to a "march" of the motor presentation of symptoms.

[11][12] Jacksonian seizures are initiated with abnormal electrical activity within the primary motor cortex.

Uniquely, they travel through the primary motor cortex in succession, affecting the corresponding muscles, often beginning with the fingers.

They can also start at the feet, manifesting as tingling or pins and needles together with painful cramps, due to the signals from the brain.

[15][better source needed] The aura might also occur as a visual disturbance, such as tunnel vision or a change in the perceived size of objects.

[18] Complex partial seizures occur when excessive and synchronous electrical brain activity causes the impaired awareness and responsiveness.

[6][5] Most people with focal seizures due to epilepsy require medications to manage the condition.