This paper, Part III of a critique of survivalist interpretations of near-death experiences (NDEs), considers psychophysiological and cultural correlates of NDEs suggesting that such experiences are solely products of individuals' minds rather than windows into a transcendental realm. While current psychophysiological models do not fully explain out-of-body experiences (OBEs) and NDEs, several psychophysiological correlates offer promising clues about the mechanisms implicated in their production. These correlates do not definitively identify their precise causes, but strongly imply that such experiences represent internally (...) generated fantasies rather than genuine perceptions of a transcendental environment. Additionally, stark differences in the phenomenology of NDEs from different cultures have been uncovered. Though nonWestern samples are too limited to draw anything more than tentative conclusions, the available data suggest that prototypical Western NDE motifs derive from a cultural source, consistent with the hypothesis that NDE content reflects social conditioning and personal expectation rather than the perception of an external reality. (shrink)