First dates could become much less stressful and awkward - thanks to a Blade Runner-style emotion detector that can tell if a person has the hots for you.

The pioneering device is inspired by the Voight-Kampff machine featured in Ridley Scott's 1982 sci-fi thriller starring Harrison Ford an Seann Young.

In the film, the polygraph-like interrogation tool is used by police to determine if someone is an android by provoking emotional responses.

The fictional gadget measures blush response, respiration, heart rate and eye movement in response to questions dealing with empathy.