Purdue pegboard test 1 adolescent 1 adult 1 article 1 behavior change 1 child 1 clinical article 1 controlled study 1 female 1 gravity 1 hand 1 human 1 male 1 motor cortex 1 motor learning 1 motor mapping 1 muscle 1 nerve cell plasticity 1 neuromodulation 1 neurophysiology 1 neuroplasticity 1 outcome assessment 1 pediatrics 1 randomized controlled trial 1 retention time 1 robotic TMS school child 1 tDCS and HD-tDCS 1 transcranial direct current stimulation 1 transcranial magnetic stimulation 1