 Delusions of mirrored-self misidentification, instead, are monothematic. Apart from the content of delusion itself, we may report no other unusual belief. Thus, when we systematically fail to recognize our image in the mirror and come to think that there is a person identical to us on the other side, and we have no other unusual belief, we have a monothematic delusion. Other examples of delusions that are usually monothematic and are discussed in the philosophical literature are Capgras and Cotard. The Capgras delusion involves the belief that a dear one (a close relative or the spouse) has been replaced by an impostor. The Cotard delusion involves the belief that we are disembodied or dead. 