Macropsia

Macropsia is a neurological condition affecting human perception, in which objects appear larger than normal, and the sufferer smaller. It is the reverse of micropsia.

Causes of macropsia include migraines and (rarely) complex partial epilepsy. Temporary macropsia can be also caused by the actions of various psychoactive drugs, notably cannabis and magic mushrooms. Drug-induced changes in perception subside as the chemical leaves the body.