Sexual and food preference in apotemnophilia and anorexia: interactions between 'beliefs' and 'needs' regulated by two-way connections between body image and limbic structures.

Apotemnophilia straddles the boundary between neurology and psychiatry. It is a condition in which individuals experience the strong and specific desire for amputation of a healthy limb. Research suggests this disorder may be of neurological origin, specifically that the body image centers of the brain lack a cortical representation for a particular limb.