Aura versus prodrome: which statement best describes Aura?

• A. Aura is a non-specific prodrome that occurs hours to days before seizure
• B. An aura is a focal symptom experienced during the ictal phase indicating seizure onset
• C. Prodrome is a focal symptom occurring during ictal phase
• D. Aura and prodrome are the same phenomenon

Answer: (B)

Aura is a focal symptom that marks the onset of a seizure, experienced during the ictal phase. It’s a specific perceptual or experiential change—such as a strange smell, déjà vu, a peculiar taste, or a twitch in a limb—that arises as the seizure begins and can help localize the brain area involved. Prodrome, on the other hand, consists of nonspecific signs that may occur hours to days before a seizure, like mood changes, fatigue, headaches, or sleep disturbance, and does not indicate where the seizure will start. So the best description is that an aura is a focal symptom experienced during the ictal phase signaling seizure onset.