The mind, said Raquel Welch, is an erogenous zone. And it is the brain, and how it organizes our erogenous zones, that has intrigued scientists for decades. Why is a nuzzled neck sexy when few would be turned on by a nuzzled nose? And why do men seem to have fewer erogenous zones than women? A new study has measured just how erotic our body bits are — and there are a few surprises for neuroscientists.

The research, a joint project between two British universities and one in South Africa, is billed as the first "systematic survey of the magnitude of erotic sensations from various body parts."

Perhaps the biggest surprise was that feet were not considered sexually attractive by the 800 people, mostly from Britain and sub-Saharan Africa, who took part in the study.