Infant Female 7 Humans 7 female 7 human 7 infant 7 Child 6 Temperament 6 child 6 physiology 6 psychology 6 temperament 6 Male 5 male 5 Adult 4 Parents 4 adult 4 child parent relation 4 Child, Preschool 3 Emotions 3 emotion 3 preschool child 3 Article 2 Autism Spectrum Disorder 2 Facial Expression 2 Longitudinal Studies 2 Mother-Child Relations 2 Mothers 2 Parent-Child Relations 2 Pupil 2