According to a new study some businesses are working on technology to determine customer satisfaction through facial expressions. The question we really asked is: 'Can we truly detect emotion from facial articulations?' And the basic conclusion is no you can't said study researcher Aleix Martinez from Ohio State University in the US. For the findings the researchers focused on building computer algorithms that analyse facial expressions. The researchers analysed the kinetics of muscle movement in the human face and compared those muscle movements with a person's emotions. They found that attempts to detect or define emotions based on a person's