In a first for mechanical man, scientists have revealed that humans get aroused by touching robots. Researchers at Stanford University studying the physiological impact of human-on-bot contact found that "touching areas perceived as private made the skin more moist." The team of scientists programmed a two-foot-tall robot -- part Michelin Man, part Wall-E -- to command four female and six male subjects to touch various parts of its body. Study participants wore finger sensors to measure arousal and reaction time. When asked to touch a neutral, easily accessible part of the body such as the hand, there was no marked response.

"It shows that people respond to robots in a primitive, social way," researcher Jamy Li said in the release. "Social conventions regarding touching someone else's private parts apply to a robot's body parts as well. This research has implications for both robot design and theory of artificial systems." As shown in the video above, the robot in the experiment also provides an anatomical definition of each body part touched. There were four female volunteers and six male volunteers in the small study, according to The Guardian.

This is a NAO robot asking a human to touch its hand for science. Robots can't feel shame, which saves them from any awkwardness when they ask a human to touch their buttocks. Humans are not so lucky, and when asked by a robot to touch part of its body, humans will get uncomfortable if that body part is generally thought of as private. In a new study, Stanford researchers found that people get weirded out touching "low-accessible" parts of the robot's body (crotch, butt, that sort of thing). The paper will be presented this week in Fukuoka, Japan, at the Annual Conference of the International Communication Association.

"It shows that people respond to robots in a primitive, social way," researcher Jamy Li said in the release. "Social conventions regarding touching someone else's private parts apply to a robot's body parts as well. This research has implications for both robot design and theory of artificial systems." As shown in the video above, the robot in the experiment also provides an anatomical definition of each body part touched. There were four female volunteers and six male volunteers in the small study, according to The Guardian.

Californian researchers have established that an intimate caress of a humanoid robot can produce a physiological response in a human. They challenged volunteers with a robotic creature less than two feet high that possessed eyes, ears, torso, legs, arms and a voice – and a chat-up line rich in come-hither invitations. "Sometimes I'll ask you to touch my body and sometimes I'll ask you to point to my body," it told volunteers. It was found that a touch where the robot's buttocks or genitals would be produced a measurable response of arousal in the volunteer human, the scientists report. "Our work shows that robots are a new form of media that is particularly powerful. It shows that people respond to robots in a primitive, social way," said Jamy Li, a mechanical engineer at Stanford University in California, who led the study.