There are various symptoms of mental disorders, some of which are obsessed with delusions such as ``I feel like a parasite is crawling under my skin'', ``I believe I am a zombie'', and ``My hands are ...

Capgras syndrome, named after the French psychiatrist who described "the illusion of doubles," is a delusion of misidentification. It is characterized by a person's delusional belief that someone whom ...

There are several psychological diseases that are rare, uncommon, and hard to accept. Most people are familiar with psychiatric disorders such as schizophrenia and bipolar disorder, but some ...