Even people meditating for the first time will register a decrease in beta waves, a sign that the cortex is not processing information as actively as usual. After their first 20-minute session, patients show a marked decrease in beta-wave activity, shown in bright colors, top.
BEFORE meditation --Frontal lobe --Parietal lobe --Occipital lobe
AFTER meditation --Frontal lobe --Parietal lobe --Occipital lobe
Inside the Meditating Brain
Frontal lobe This is the most highly evolved part of the brain, responsible for reasoning, planning, emotions and self-conscious awareness. During meditation, the frontal cortex tends to go offline.
Parietal lobe This part...