sensory migraine aura

Sensory migraine aura refers to neurological symptoms that can precede or accompany a migraine headache. These auras are caused by a slow-moving wave of abnormal neural activity across the brain's surface. While visual disturbances are the most common type of aura, sensory auras can manifest as tingling and numbness that spreads from the hand up the arm and to the face, or may affect other areas. Some sensory auras can also involve language difficulties, one-sided weakness, or vertigo.1

In about 30% of migraine patients, these aura symptoms occur without the subsequent headache, a condition known as a "silent migraine". Auras typically develop over a few minutes and can last up to an hour.21