Adult Humans 139 Young Adult adult 139 human 139 young adult 139 female 125 Female 119 male 117 Male 114 adolescent 82 Adolescent 81 Middle Aged 75 middle aged 75 Article 57 physiology 55 aged 44 controlled study 44 major clinical study 42 Aged 41 statistical model 39 article 37 Models, Psychological 30 psychological model 30 procedures 29 child 24 diagnostic imaging 24 human experiment 24 Child 23 psychology 23