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Heterosexualidad, homosexualidad y bisexualidad. La tercera orientación parece que es consolidada en algunas personas y persiste durante años.

El estudio de la Dra. Lisa Diamond, de la Universidad de Utah, ha consistido en controlar a 79 mujeres no-heterosesuales a lo largo de 10 años. Los resultados contradicen la idea extendida de que la bisexualidad no es una forma real de sexualidad, sino más bien una atracción temporal. Para la cultura imperante domina la rigidez de ser heterosexual u homosexual, y si no se es totalmente homosexual se es heterosexual.

Las mujeres que se identificaron en 1995 como bisexual, el 92% se consideraron bisexuales o sin etiquetas en 2005. De las mujeres que se identificaron como lesbianas en 1995, el 66% se identificaron como lesbianas 10 años más tarde, 19% cambiaron a bisexuales y 16% a "sin etiquetas". Ninguna mujer calificada como lesbiana en 1995, pasó a heterosexual. 17% pasaron de bisexuales o "sin etiquetas" a heterosexuales en el mismo periodo. Pero más de la mitad de las mujeres, volvieron a ser bisexuales o sin etiquetas al cabo de 10 años.

Más información: USA Today

Dev Psychol. 2008 Jan;44(1):5-14. Female bisexuality from adolescence to adulthood: Results from a 10-year longitudinal study.

Diamond LM. University of Utah.

Debates persist over whether bisexuality is a temporary stage of denial or transition, a stable "3rd type" of sexual orientation, or a heightened capacity for sexual fluidity. The present study uses 5 waves of longitudinal data collected from 79 lesbian, bisexual, and "unlabeled" women to evaluate these models. Both the "3rd orientation" and "fluidity" models had support, but the "transitional stage" model did not. Over 10 years, 2/3 of women changed the identity labels they had claimed at the beginning of the study, and 1/3 changed labels 2 or more times. Yet, contrary to the "transitional stage" model, more women adopted bisexual/unlabeled identities than relinquished these identities; few bisexual/unlabeled women ended up identifying as lesbian or heterosexual. Overall, the most commonly adopted identity was "unlabeled." Bisexual/unlabeled women had stable overall distributions of same-sex/other-sex attractions but greater absolute fluctuations in attractions from assessment to assessment than lesbians. All women reported declines in their ratio of same-sex to other-sex behavior over time. These findings demonstrate that the distinction between lesbianism and bisexuality is a matter of degree rather than kind.