controlled study 2 functional connectivity 2 musical instrument Aged 1 Aged, 80 and over 1 Aging 1 Article 1 Cerebral Cortex 1 Connectome 1 Female 1 Humans 1 Magnetic Resonance Imaging 1 Male 1 Memory, Short-Term 1 Mental Recall 1 Middle Aged 1 Music 1 Pattern Recognition, Visual 1 Practice, Psychological 1 Psychomotor Performance 1 Putamen 1 Verbal Learning 1 adult 1 aged 1 aging 1 article 1 artifact 1 averaging 1 behavior change 1 brain connectivity 1