Exposure frequency and stimulus preference.
D000339:Affect; D001143:Arousal; D001244:Association; D004192:Discrimination, Psychological; D004644:Emotions; D005106:Exploratory Behavior; D005260:Female; D005556:Form Perception; D006801:Humans; D008297:Male; D012718:Set, Psychology; D012737:Sex Factors; D013997:Time Factors