title: Duplication of facial expressions: conditions affecting task and possible clinical usefulness.
mesh_terms: D000339:Affect; D001007:Anxiety; D005149:Facial Expression; D005246:Feedback; D006801:Humans; D007100:Imitative Behavior; D007600:Judgment; D010781:Photography; D011214:Practice, Psychological; D011369:Professional-Patient Relations; D011613:Psychotherapy; D012649:Self Concept; D012938:Social Perception; D014796:Visual Perception