Personal space.
D000367:Age Factors; D000374:Aggression; D000818:Animals; D001290:Attitude; D001522:Behavior, Animal; D002648:Child; D002657:Child Development; D002675:Child, Preschool; D003071:Cognition; D003431:Cross-Cultural Comparison; D005260:Female; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D010551:Personality; D010554:Personality Disorders / Q000209:etiology; D011582:Psychological Theory; D012107:Research Design; D012565:Schizophrenic Psychology; D012737:Sex Factors; D013037:Spatial Behavior; D013315:Stress, Psychological