This syndrome come from the eponymous novel of Lewis Carroll. The perception is disturbed spectacularly : people who contracts this sickness see stuff little when they are big (micropsia) and big when they are little (macropsia). A car suddenly become a reduced model, and a cat can transform in a tigre. Subject’s perception of their own body is also distorted as the perception of time. The syndrome can also give rise to more significant hallucinations or touch the other senses. This trouble is sometimes associate to big migraines as Lewis Carroll had suffered, or merely the taking of hallucinogenic drugs.
But oddly this sickness is more contracted by children than adults.