Her expertise involves three main areas: bioethics and medical ethics, ethics education, and feminist philosophy. In the areas of bioethics and medical ethics, she can discuss issues involving egg and sperm donation, abortion, surrogacy, in vitro fertilization, surrogacy, and embryos, adoption, genetic testing, genetic medicine, health and quality of life, technologies of human enhancement, family life (who is a family member? what is a family?), identity, sciences regarding inheritance, and the ethics of science policy and public policy. An expert on ethics education, Leighton can also discuss ethics and values debates, and feminist philosophy including feminist concerns regarding gender, sexuality, identity, and family.