More complex practice, involved more cognitive 'power' - recognising patterns, remembering pieces. Therefore, adult musicians may have more widespread, pronounced changes resulting in more highly refined socio-emotional skill (the areas that are changed in adults but not in children are in bold).
1 Prefrontal Cortex – increased activation --> improved higher-order thinking, e.g., EFs (no increase in grey matter here in adult musicians, may be due to all brains, musical or not, being fully developed by adulthood, so it may merely 'speed up' development in child musicians)
2 Broca’s area – stronger activation --> improved language skills
3 Basal Ganglia – increased grey matter --> improved ability to choose the appropriate EF (e.g., 'this task needs more memory') and maintain it throughout the task
4 Cingulate Cortex – increased activation --> improved control of 'thinking'
5 Corpus Callosum – increased activation, increased grey matter --> 'faster' thinking
6 Hippocampus – increased grey matter --> improved long-term memory
This evidence suggests musical adults may have more control over their 'brain power', sending the appropriate skill to the appropriate task and keeping it there.