DualShock 4 Prototype Measured Your Sweat

One of the prototype DualShock 4 controllers for the PlayStation 4 was able to detect how much you sweat while playing a game.

PS4 lead system architect Mark Cerny made the revelation in an interview with Stuff, explaining galvanic technology was used to see how moist your palms were at any given time.

"We had a long research project where we looked at pretty much any idea we could think of," Cerny explained. "Would it help to measure the galvanic response of the skin? We tried out a tremendous number of things - and then we went to the game teams to ask them what they thought they could use from the controller."

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We had a long research project where we looked at pretty much any idea we could think of.

As you probably know, this wasn't a feature that made it into the final game, though it does perhaps explain why we got reports of PS4 controllers have biometric grips back in January. In the end, it was feedback from gamers about how difficult it was to play shooters on the PlayStation 3 that had some of the biggest impact on the final design.

"Historically we have heard many times that our controllers have not been ideal for first-person shooters," Cerny admitted. "So we wanted to make sure we had something that would be much better for that genre.

"We tested the throw of the triggers, the position of the triggers, how much pressure it takes. We looked at the joysticks, the dead spot, we looked at convexity and concavity. [It] feels extraordinarily natural."

What do you reckon, can you think of a good use for sweat sensors on the DualShock 4? Let us know your thoughts in the comments and check back to IGN in the coming days for our own interview with Mark Cerny.

Luke Karmali is IGN's UK Junior Editor and has already pre-ordered his PS4. You too can revel in mediocrity by following him on IGN and on Twitter.

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