In 1981, Kenneth Ring, a professor of psychology at the University of Connecticut, established the International Association for Near-Death Studies, which put together a systematic study on the aftereffects of NDEs.
1981 年創立「國際瀕死研究學會」的美國康乃迪克大學心理學教授甘尼斯・林，進一步對瀕死經驗的後續效應做系統性研究。