Professionals and students in the biological, mathematical, engineering, physical and social sciences. Activities, newsletter, and membership information.

Promotes quality health care for LGBT and HIV-positive people, fosters a professional climate in which its diverse members can achieve their full potential, and supports members challenged by discrimination.

Combats homophobia in general and in the field of psychology, stimulates and supports gay/lesbian/bisexual affirmative approaches in psychological science, in psychotherapy, and in all other psychological areas of work.

Encourages unprejudiced sociological research on lesbians and gay men and their social institutions, and provides a forum for current research, teaching methods and materials, and professional issues relevant to homosexuality.