nerve cell plasticity Article 45 human 44 controlled study 41 male 37 adult 31 physiology 30 female 29 Neuronal Plasticity 27 nonhuman 24 Humans 22 animal experiment 19 article 18 clinical article 18 Animals 17 animal 17 learning 17 Male 13 nerve cell network 12 nerve cell 11 rat 11 young adult 11 brain cortex 10 functional connectivity 10 functional magnetic resonance imaging 10 human experiment 10 mouse 10 nuclear magnetic resonance imaging 10 Female 9 aged 9