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".
Fear of the dark (from σκότος – "darkness"), or lygophobia (from λυγή – "twilight"). Some researchers, beginning with Sigmund Freud, consider the fear of the dark to be a manifestation of separation anxiety disorder. An alternate theory was posited in the 1960s, when scientists conducted experiments in a search for molecules responsible for memory. In one experiment, rats, normally nocturnal animals, were conditioned to fear the dark and a substance called "scotophobin" was supposedly extracted from the rats' brains; this substance was claimed to be responsible for remembering this fear. These findings were subsequently debunked. Nyctophobia is a phobia characterized by a severe fear