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Hallucination - Wikipedia, the free encyclopedia
A hallucination , in the broadest sense, is a perception in the absence of a stimulus. In a stricter sense, hallucinations are defined as perceptions in a conscious and awake state in the absence of...
en.wikipedia.org/wiki/Hallucination |
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* Any hallucinations that occur, other than when you're just waking up or falling asleep, should be brought to the attention of your physician. ... Generally, hallucinations are an important warning signal that a person may have a mental health problem. Seeing things could be a symptom of schizophrenia,
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And I will attempt through the examination of two different types of visual hallucinations - release hallucinations and those experienced by schizophrenics - to make an argument for brain equals behavior.
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Visual hallucinations are the most common type of hallucination in dementia. The person may see people, animals or other objects. Sometimes the hallucinations involve quite complicated scenes or bizarre situations.
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Visual hallucinations occur in diverse clinical circumstances including ophthalmologic diseases, neurologic disorders, toxic and metabolic disorders and ...
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We review existing models of recurrent complex visual hallucinations (RCVH) in the awake person, including cortical irritation, cortical hyperexcitability and cortical release, top-down activation, misperception, dream intrusion, and interactive models.
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While visual hallucinations can be a symptom of mental illness, there are also a number of nonpsychiatric causes of "seeing things." A common type of visual hallucination occurs after a stroke or other type of brain injury.
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