Definition of Alice in Wonderland syndrome

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Alice in Wonderland syndrome: A syndrome of distorted space, time and body image. The patient with the Alice in Wonderland syndrome has a feeling that their entire body or parts of it have been altered in shape and size. The syndrome is usually associated with visual hallucinations. The majority of patients with the syndrome have a family history of migraine headache or have overt migraine themselves.

The syndrome was first described in 1955 by the English psychiatrist John Todd (1914-1987). Todd named it, of course, for Alice's Adventures in Wonderland by Lewis Carroll. Perhaps not coincidentally, Lewis Carroll suffered from severe migraine. Also known as a Lilliputian hallucination.