Lacan's conceptual development of "the gaze" linked the pleasure of scopophilia to the person's apprehension of the Other (person) who is not the Self; that is: "The gaze is this object lost, and suddenly re-found, in the conflagration of shame, by the introduction of the Other." The practice of scopophilia is how a person's "desire" is captured by the imaginary representation of the Other. Theories alternative to Lacan's interpretations of scopophilia and the gaze proposed that a child's discovery of genital difference, and the accompanying anxiety about not knowing the difference of the Other sex, is the experience that subsequently impels the child's scopic drive to fulfil the desire to look and to look at.