Abstract
In an out-of-body experience (OBE) a person feels his consciousness leaves his own body. Dao jiao Nei-dan fa (tao method) can induce a meditative OBE. The author used near infrared spectroscopy (fNIRS) to measure a body parameter change during OBE. The veteran subject (male, 71y) showed remarkable decrease of brain blood flow in his prefrontal brain area.