Hallucinations

Hallucinations are sensory experiences that occur in the absence of an actual external stimulus. They can involve any or all of the five senses and often have the same vividness as a normal sensory experience. Hallucinations are clinically significant in patients who suffer from serious mental illnesses, such as schizophrenia and bipolar disorder. They can also be a symptom of other medical conditions, such as stroke, brain injury, or dementia. Hallucinations are not always negative experiences and can sometimes provide comfort or guidance to people, especially those with strong spiritual beliefs. Understanding hallucinations and their causes is necessary in order to diagnose and treat the underlying condition causing them.