Homophobia is a term used to refer to a range of negative attitudes and feelings towards lesbian and gay and in some cases bisexual, transgender people and behaviour although these are usually covered under biphobia andtransphobia. Intersex and asexual people are also sometimes included. Definitions refer variably to antipathy,contempt, prejudice, aversion, and irrational fear. Homophobia is observable in critical and hostile behavior such as discrimination and violence on the basis of a perceived homosexual or in some cases any non-heterosexualorientation. In a 1998 address, author, activist, and civil rights leader Coretta Scott King stated that "Homophobia is like racism and anti-Semitism and other forms of bigotry in that it seeks to dehumanize a large group of people, to deny their humanity, their dignity and personhood."