High Quality Content by WIKIPEDIA articles! The Society for the Scientific Study of Sexuality (SSSS, or "quad-S"), formed in 1957, is a non-profit, professional membership organization that claims to be "the oldest professional society dedicated to the advancement of knowledge about sexuality." It claims to have more than 1,000 members and has a quarterly newsletter,According to its website, SSSS was established in 1957 by legendary psychologist Albert Ellis to encourage the rigorous, systematic study of sexuality. In 1980, organizer Robert Francoeur invited Philadelphia biologist Timothy Perper to join the society. Perper had recently finished charting the mating behavior of five-hundred couples in bars in the U.S. and Canada. That year he presented the early results of his findings to the society. His book, detailing findings, is called Sex Signals – the Biology of Love and was published in 1985.

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