User:Mr. Ibrahem/Hallucination

A hallucination is where someone senses things that do not exist. They fell like normal perceptions in their vividness and cannot be controlled. The senses potentially involved include seeing, hearing, tasting, and feeling. People may become frightened or paranoid as a result.

Causes may include drugs, certain medications, schizophrenia, dementia, vision loss, and extreme tiredness. The drugs involved may include alcohol, amphetamines, cocaine, LSD, or ecstasy. Hallucinations may also occur around the time of sleep and during a fever. Some people also have hallucinations as part of their religious experience. Similar phenomena include dreaming, which does not involve wakefulness; pseudohallucination, which are accurately perceived as unreal; illusion, which involves misinterpreted real perception; and imagination, which is under voluntary control. Delusions are beliefs that do not change despite conflicting evidence.

Treatment depends on the underlying cause. The most common form of hallucination is hearing voices, which affects 5 to 28% of people. This is not uncommon after someone has lost a loved one. Hallucinations have been described since at least the time of ancient Greece. The word "hallucination" was introduced into English from Latin in 1572.