article human 12 Humans 7 controlled study 5 human experiment 5 physiology 4 adult 3 Animals 2 Brain 2 Population Dynamics 2 animal 2 brain 2 decision making 2 feedback system 2 female 2 growth rate 2 learning 2 male 2 memory 2 nonhuman 2 outcome assessment 2 population dynamics 2 probability 2 psychology 2 Action Potentials 1 Adolescent 1 Adult 1 Age-structured population 1 Anisotropy 1 Association Learning 1