Introduction : The role of modern neuroscience in sexuality research / Janet Shibley Hyde -- The genetics of sexual orientation / Janet Shibley Hyde -- The role of hypothalamus and endocrine system in sexuality / Dick F. Swaab -- The central control and pharmacological modulation of sexual function / Kevin E. McKenna -- Brain activity imaging during sexual response in women with spinal cord injury / Barry R. Komisaruk and Beverly Whipple -- Neuroanatomical and neurotransmitter dysfunction and compulsive sexual behavior / Eli Coleman -- Synthesis : overarching themes and future directions for research / Janet Shibley Hyde and Beverly Whipple.