[Solved] Psychologists who were interested in studying visual images found that: A) the images occur in a mental "space" of a fixed size. B) the images cannot be manipulated by the participant. C) larger images contain less detail than do smaller images. D) it is not possible to study them because the images cannot be "seen." Anal Stage: A phase in Freud's psychosexual development theory where pleasure is focused on the anal region and issues around control and order arise. Erotic Feelings: Emotions and sensations associated with sexual attraction and desire. Psychosexual Development: A Freudian concept describing how personality develops through stages centered on erogenous zones. Oedipus Complex: A phase in Freudian psychology where a child feels desire for the parent of the opposite sex and jealousy toward the parent of the same sex.