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Hallucination is understood as the perception of something that is not there and delusion as the belief of something despite contrary evidence. Both are commonly associated with psychiatric conditions such as schizophrenia, Alzheimer’s disease, or bipolar disorder. However, they sometimes also manifest in neurotypicals, for example, during drug-induced states or under conditions of severe sleeping deprivation.
This Collection focuses on neural and cognitive mechanisms underpinning delusions and hallucinations and what we can infer about neurotypical perception as well as psychiatric conditions by studying them.