
The hallucinations can occur on their own or as a part of drug-induced psychosis. More often, visual distortions occur that alter the person's perception of the world around them. They can include flashes of light or abstract shapes, or they may take the form of an animal or person. They can also occur during withdrawal from alcohol or drugs if you suddenly stop taking them.ĭrug-induced hallucinations are usually visual, but they may affect other senses. People can experience hallucinations when they're high on illegal drugs such as amphetamines, cocaine, LSD or ecstasy.

Hallucinations can also occur as a result of extreme tiredness or recent bereavement. hallucinations in older people with delirium.hallucinations in children with a fever.The following information explains the typical types of hallucinations, including why they occur and what you can do. Hallucinations can make you feel nervous, paranoid and frightened, so it's important to be with someone you can trust. See your GP straight away if you're experiencing hallucinations and you're worried about them. Read more about the types and causes of hallucinations in sections below. loss of vision caused by a condition such as macular degeneration– this is known as Charles Bonnet syndrome.a progressive neurological condition, such as Alzheimer's disease or Parkinson's disease.a mental illness, such as schizophrenia or dementia.For example, they can occur as a result of:

Hallucinations can be frightening, but there's usually an identifiable cause.

Hallucinations are common in people with schizophrenia, and are usually experienced as hearing voices. Hallucinations are where someone sees, hears, smells, tastes or feels things that don't exist outside their mind.
