This is Your Brain on Glossolalia
• Edifying
Brain scans of folks speaking in tongues show the language controlling portions of their brains to diminish in activity. And …
Newberg also discovered, Waldman writes, that the practitioners had an unusual and permanent asymmetry in thalamic activity. The same asymmetry was found in nuns and Buddhists, which supports the theory that either intensive prayer permanently alters the brain, or that people with an abnormally functioning thalamus are more prone to having spiritual/religious experiences, according to Waldman.