The term "migraine" refers to a syndrome of vascular spasms of the cranial blood vessels. Symptoms of a migraine attack may include heightened sensitivity to light and sound, nausea, auras (loss of vision in one eye or tunnel vision), difficulty of speech and intense pain predominating on one side of the head. Update Date: 07/27/2008Daniel B. Hoch, PhD, MD, Assistant Professor of Neurology, Harvard Medical School, Department of Neurology, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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