title: Experimenter expectancy in pupillometric research.
mesh_terms: D001290:Attitude; D003071:Cognition; D004106:Dilatation; D004644:Emotions; D006801:Humans; D007600:Judgment; D010781:Photography; D011603:Psychophysiology; D011680:Pupil / Q000502:physiology*; D014796:Visual Perception