The image above shows the gaze fixations of a man in the first 10 seconds that he looked at the profile, which totalled more than 200 fixations.Online dating or Internet dating is a personal introductory system where individuals can find and contact each other over the Internet to arrange a date, usually with the objective of developing a personal, romantic, or sexual relationship.

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"It is validating to know we have helped people find each other.

Every year, more people search online dating sites to find their next Valentine.

The device works by shining an infrared light at the eye, creating reflections which are, in turn, recorded by a camera.

Using the recorded pattern of reflections, the program calculates the angle between the cornea and pupil, which is used to calculate the angle of the gaze.

Match metaphors are conceptual frameworks that allow individuals to make sense of new concepts by drawing upon familiar experiences and frame-works.

This metaphor of the marketplace – a place where people go to "shop" for potential romantic partners and to "sell" themselves in hopes of creating a successful romantic relationship – is highlighted by the layout and functionality of online dating websites.

The marketplace metaphor may also resonate with participants' conceptual orientation towards the process of finding a romantic partner.

Most sites allow members to upload photos or videos of themselves and browse the photos and videos of others.

Other sites depend on advertising for their revenue.