Some critics of masters and johnson's 4-phase model of the sexual response cycle believe that it focuses too much on

Genitals and leaves out psychological issues

Tefer believes it leaves out important aspects, focusing too much on genital functioning and leaving out the psychological aspect

Basson agrees and feels that women's motivations for sex are more complex than men; driven by desire for intimacy

Tiefer and Basson believe nonsexual distractions of life interfere with a woman's ability to be sexually aroused