human 41 Humans 40 female 35 male 34 verbal learning 33 Verbal Learning 29 Female 28 Male 27 adult 22 aged 16 controlled study 16 Adult 15 Young Adult 15 young adult 15 Aged 14 Article 14 physiology 14 article 13 human experiment 13 recall 13 Mental Recall 12 language development 12 nuclear magnetic resonance imaging 12 child 11 cognition 11 diagnostic imaging 11 learning 11 major clinical study 11 Child 10 Middle Aged 10