In an earlier 2006 article, Bogaert acknowledges that a distinction between behavior and attraction has been accepted into recent conceptualizations of sexual orientation, which aids in positioning asexuality as such. He adds that, by this framework, "(subjective) sexual attraction is the psychological core of sexual orientation", and also addresses that there may be "some skepticism in the academic and clinical communities" about classifying asexuality as a sexual orientation, and that it raises two objections to such a classification: First, he suggests that there could be an issue with self-reporting (i.e., "a 'perceived' or 'reported' lack of attraction", particularly for definitions of sexual orientation that consider physical arousal over subjective attraction), and, second, he raises the issue of overlap between absent and "very" "low" sexual desire, as those with an extremely low desire may still have an "underlying sexual orientation" despite potentially identifying as asexual.