Out-of-body experiences are also more common among those with autism.
Brain chemicals could explain some of these experiences, but so could bullying and social isolation.
This is your brain on plugs.
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Have you ever checked your phone thinking you had felt it vibrate or heard it ring, only to see that no one tried to reach you? One researcher decided to study this phenomenon.
People with delirium may hallucinate.
Delirium is a neurological (nervous system) condition where a person becomes suddenly confused. Around one in five elderly people in hospital suffer from delirium.
Ayahuasca, a plant-based brew that gives people a psychedelic experience, can be fatal, especially when mixed with other drugs.
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Shaman have used the psychoactive effects of ayahuasca for spiritual and healing purposes for hundreds of years. But a new breed of tourist has discovered this plant-based drug.
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When human contact is cut off, the brain begins to act in strange ways to preserve its sanity.
Healthy people can have visual hallucinations after taking drugs, being sleep deprived or suffering migraines.
Our study published this week shows a new method to induce and measure visual hallucinations in anyone at any time.
LSD causes euphoria, increased body temperature and hallucinations where some or all of the senses are distorted.
During the 1950s and 1960s, LSD was used more for psychotherapy than recreation. Between 1950 and 1965, many were treated with LSD for alcoholism, depression, schizophrenia, autism and homosexuality.
A new study of the brain structure of schizophrenics has revealed an important clue that could help treat hallucinations.
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Back in the early 1990s, I used to play the video game Tetris on my Nintendo Game Boy. I was really good at it – if I do say so myself – and I used to play for hours every day. When I went to bed I would…