[1] Bieber was, along with Lionel Ovesey and Charles Socarides, one of the most influential American psychoanalysts who postulated that gay men can be treated successfully.
[3] In 1970, Bieber attended a meeting of the American Psychiatric Association in San Francisco that was protested by members of the Gay Liberation Front.
"[1] When Alan P. Bell, Martin S. Weinberg, and Sue Kiefer Hammersmith's study Sexual Preference was published in 1981, Bieber declared that its findings were "totally disparate" with his experience from psychiatric consultation.
Sigmund Freud had used Lindner's observation that sensual sucking seems to absorb the attention completely and leads to either sleep or an orgasm-like response to develop his theory of infantile sexuality.
[1] A review by Social Work called the study "an important book",[7] also stating that "...the authors present a very meaningful understanding of the underlying dynamics of this symptom and factors relevant to etiology".