California based therapist Gwen Dean noted forty-four parallels between alien abduction and satanic ritual abuse (SRA). Both emerged as widespread phenomena in the late 1970s and early 1980s, both often use hypnosis to recover lost or suppressed memory. Furthermore, the scenarios and narratives offered by abductees and SRA victims feature many similar elements: both are typically said to begin when the experiencer is in their youth; both are said to involve entire families and to occur generationally; the alien examination table is similar to the satanic altar; both phenomena focus on genitals, rape, sexuality and breeding; witnesses often report that the events happen when they are in altered states of consciousness; both phenomena feature episodes of "missing time" when the events are said to occur, but of which the victim has no conscious memory. (Bryan, 138-139)