Spirit of the Dead Watching her fear. Mathews says it is too simple to attribute Tehura's terror to her belief in spirits and irrational fear of the dark; she says, following Sweetman, that Gauguin's sexual predilections should not be ignored when trying to understand the work. Rather, she suggests the girl's fear was a response to Gauguin's aggressive behavior, consistent with his known battering (so says Mathews) of his wife Mette, the submissive fear in her eyes his erotic reward. Stephen F. Eisenman, professor of Art History at Northwestern University, suggests the painting and its narrative is "a veritable encyclopaedia of colonial racism and misogyny".
Supernumerary body part considered to have lost much or all of their original function through evolution. These body parts can be classed as additional to the required functioning of the body. In human anatomy the vermiform appendix is sometimes classed as a vestigial remnant. Prosthesis is an artificial extension that replaces a body part, and cybernetics is the study of computer technology in relation to organisms which can include replacement or additional body parts. Body integrity identity disorder (BIID) is a psychiatric disorder in which a person thinks that they have one or more additional limbs than they should, despite having two arms