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migraine aura
A sensory phenomenon that may occur before a migraine.

Visual auras may include flashing lights, geometric patterns, or distorted vision. Some people may have aural (ear) auras that involve hearing sounds (usually buzzing) that are not actually present, olfactory auras that involve smelling odors that are not actually present, or tactile auras that appear as premonitory physical sensations (giving prior warning of disease symptoms).

The auras experienced by migraine sufferers are similar to those associated with epilepsy.

This entry is located in the following unit: cranio-, crani-, cran- + (page 6)