En 2005, Nielsen y Tara Pernice Coyne, llevaron a cabo un estudio sobre 255 usuarios en NYC, donde aplicaron la técnica del Eyetracking. Una de las conclusiones me ha dejado de piedra. Sirva la siguiente imagen:
Although both men and women look at the image of George Brett when directed to find out information about his sport and position, men tend to focus on private anatomy as well as the face. For the women, the face is the only place they viewed.
(...) Men tend to fixate more on areas of private anatomy on animals as well, as evidenced when users were directed to browse the American Kennel Club site.
Para quien no se lo crea, las conclusiones del estudio en Online Journalism Review.