Preadolescent religious experience enhances temporal lobe signs in normal young adults.

The hypothesis was verified that an ontogenetically earlier onset of temporal lobe transients, as defined by a preadolescent religious experience, facilitates more frequent and varied temporal lobe signs in adults. Data were collected for 868 male and female university students in psychology over a 10-year period; the 19% of students who reported this early experience displayed more frequent depersonalization, beliefs in psi phenomena, sensations of presence, sensitivity to odors, widened affect, childhood imaginary playmates, and left (writing) handedness. Early experiments were more likely to display confusion of boundaries between themselves, other people, and cosmic forces.