Aura

Definition

An aura is a sensory disturbance experienced before a migraine or seizure, often manifesting as visual changes, sensory changes, or other neurological symptoms. It typically serves as a warning sign that the main episode is about to occur.

5 Must Know Facts For Your Next Test

1. Auras can include visual disturbances like flashing lights, zigzag patterns, or blind spots.
2. They usually precede the headache phase of a migraine by about 10-30 minutes.
3. Auras are experienced by approximately one-third of people with migraines.
4. Sensory symptoms during an aura may include numbness or tingling in parts of the body.
5. The presence of an aura can influence the choice and timing of medication administration for migraines.

Review Questions

• What types of visual symptoms are commonly associated with a migraine aura?
• How long before a migraine does an aura typically occur?
• What percentage of people with migraines experience auras?

Related terms

Migraine: A type of headache characterized by severe pain, often accompanied by nausea and sensitivity to light and sound.

Prodrome:

Early symptoms indicating the onset of a disease or condition, occurring hours or days before a migraine.

Anticonvulsant Drugs: Medications used to prevent seizures; some are also effective in preventing migraines.