In a further study by Stephen LaBerge, four subjects were compared either singing while dreaming or counting while dreaming. LaBerge found that the right hemisphere was more active during singing and the left hemisphere was more active during counting.
I did an all night workshop led by Stephen LaBerge at Berkeley Ca. in 1986 and found out I have a propensity to be able to "live" in my dreams with some presleep visualization. Ron Alexander