A safety committee convened by the FDA has declared esketamine safe for severe depression. But isn't this drug the same as ketamine, an illegal street drug? A medical anthropologist explains.
Being isolated in total darkness has many physical and psychological consequences.
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A study in the 1960s brought together three people who believed they were Christ – the results still tell us much today about how well we recognise our own delusions.
Out-of-body experiences are also more common among those with autism.
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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.
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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.
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.
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…