In fact, modern biology shows that an individual's learning environment influences the growth of new patterns of activity in the brain — it even shapes how genes are expressed in brain activity. (gse.harvard.edu)
Or are the same regions involved but with different patterns of activity? (simonsfoundation.org)
Nevertheless, studies that compare the vivid imagery of dreams with daytime vision reveal similar patterns of activity in the visual cortex, the largest brain area devoted to vision. (scientificamerican.com)