A new treasure trove of "tantalizing" sex research

material has arrived in Indiana, ready to bolster the Kinsey


world-renowned permanent collection.

The archival collection of Masters and Johnson, the seminal

researchers of sexual response, sexual dysfunction and sexual disorders, is now

part of the Kinsey Institute library,

housed at Indiana University, the sex, gender and

reproduction research powerhouse announced Tuesday.

"In many ways, this collection enhances the 20th

Century Sex

Researchers' Archival Collection

at The Kinsey Institute," Liana Zhou,

director of the library and archives, said in a press release. "We are

very grateful to Virginia and her family for entrusting the Kinsey Institute

with this significant archive. It's an extraordinary collection."

Through correspondence, research papers, media coverage,

books, paintings and other media, the collection chronicles the work of

Virginia Johnson and William Masters from 1957 into the 1990s.

The "tantalizing ensemble of correspondences with

researchers and others, documents decades of pioneering sex research that

transformed conventional understandings of sexual response and sex

therapy," according to Kinsey's announcement of the acquisition.

Masters and Johnson, the release notes, are especially known

for their theory of a four-stage model of sexual response ­ also known as

"the human sexual response cycle," which defines the four major

phases of sex as excitement, plateau, orgasm and resolution.

The duo is also known for a pioneering study of sexual

response among the elderly.

The archive acquisition is the latest installment in a

banner year for new additions to the Kinsey collection. In October, Kinsey

announced the Robert

Mapplethorpe Foundation's

donation of 30 photographs from the artist

celebrated for his ability to capture the sensual, the delicate and the

hard-core, especially his documentation of New York's S&M scene of the

1970s and '80s.