Female female 178 human 171 Humans 169 male 162 Male 160 adult 108 controlled study 81 article 73 Adult 68 Article 65 human experiment 64 physiology 62 Young Adult 52 psychology 52 young adult 52 Adolescent 51 adolescent 51 child 49 Child 42 major clinical study 41 middle aged 33 clinical article 32 Middle Aged 31 learning 26 pathophysiology 24 preschool child 24 Child, Preschool 22 questionnaire 22 procedures 21