human 114 Humans 98 female 92 male 80 adult 77 Female 73 affect 70 Male 63 Adult 54 controlled study 53 Affect 52 Article 52 psychology 47 physiology 42 young adult 42 Young Adult 41 major clinical study 37 adolescent 33 Adolescent 32 emotion 32 middle aged 26 article 25 human experiment 25 Emotions 23 Middle Aged 23 child 21 priority journal 20 Child 18 depression 18 questionnaire 16