This article is from the Epilepsy FAQ, by Andrew Patrick (firstname.lastname@example.org) with numerous contributions by others.
Partial seizures (formerly known as focal seizures) with elementary
symptomology are often referred to a simple partial. During this type
of seizure the patient can experience a range of strange or unusual
sensations including sudden, jerky movements of one body part,
distortions in hearing or seeing, stomach discomfort, or a sudden sense
of fear. Consciousness is not impaired. If another seizure type
follows, these sensations may be referred to as an "aura".