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Migraine aura
An aura describes the visual (most common), sensory or motor symptoms that often characterize migraine. It may be caused by an electrophysiological phenomenon known as cortical spreading depression (CSD), a wave of depolarization that starts in the occipital lobe and slowly spreads before a period of hyperpolarization.
From top-left, clockwise: zigzags, negative scotoma, one-sided loss of perception, positive scotoma.
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Behavioral Neuroscience
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Gender Differences in Migraine Prevalence
A 34-year-old patient reports experiencing episodes of intense, throbbing pain isolated to the left side of their head. During these episodes, they feel nauseous and find it necessary to retreat to a dark, silent room because ordinary light and sounds are unbearable. Based on this specific combination of symptoms, which condition is the most likely diagnosis?
Scotoma
Migraine aura