What does neuroscience say about spiritual experience?

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Neuroscience research on spiritual experience, led most prominently by Dr. Andrew Newberg at Thomas Jefferson University, finds that prayer, meditation, and mystical states produce measurable changes in brain activity, particularly in the parietal lobes responsible for self-other distinction, suggesting that the experience of unity and transcendence has a neurological substrate regardless of its metaphysical status. Dr. Andrew Newberg, Director of Research at the Marcus Institute of Integrative Health at Thomas Jefferson University, coined the term "neurotheology" to describe the scientific study of the relationship between brain function and religious or spiritual experience. His SPECT imaging research on meditating Tibetan Buddhists and Franciscan nuns in prayer found decreased activity in the parietal lobes during peak spiritual states. The parietal lobes are responsible for orienting the self in space and maintaining the distinction between self and other. When parietal activity decreases, the neurological boundary between self and world becomes less defined, producing the phenomenological experience of unity, oneness, or dissolution of the ordinary self that meditators and mystics across traditions describe. The same brain region, differently activated, produces the ordinary sense of separation. Dr. Newberg also found that spiritual practice produces measurable changes in the prefrontal cortex (associated with attention, focus, and positive affect) and the limbic system (associated with emotional processing). Regular practitioners show structural differences in these regions, suggesting that sustained spiritual practice, like any sustained mental practice, reshapes the brain through neuroplasticity. The research does not resolve questions about the metaphysical reality of what spiritual experience points to. It does establish that these experiences are neurologically real: they produce measurable brain states and have physiological consequences. For many trauma survivors, this provides a framework for taking spiritual dimensions of healing seriously without requiring a pre-existing religious belief or the dismissal of the experience as merely psychological.