Christopher Mims

A View from Christopher Mims

Could Augmented Reality be Hazardous to Your Health?

Pop-up alerts and other displays in our field of vision could interfere with our perception of speed and velocity, says a bioengineer

  • April 22, 2011
Systems that attempt to make augmented reality less intrusive could throw off our sense for how we’re moving, and might even lead to disorienting motion sickness, says Eric Sabelman, a functional neurosurgery bioengineer at Kaiser Permanente. The problem, says Sabelman, is that shunting alerts and other interface elements to the periphery of our visual field isn’t much better than having them float in our central field of view.

“There seems to be an assumption that peripheral vision is idle and putting icons there will have no impact on visual signal processing. Most of our information on movement/velocity relative to the environment comes from peripheral vision,” Sabelman said in an email.

Eye-tracking AR systems like this one could give rise to as many problems as they solve.

The research he was addressing – a prototype by Japanese researchers that combines eye tracking with a traditional eyeglasses-based augmented reality projection system to shunt interface elements into peripheral vision – uses as one example the problem of giving GPS navigation directions to a bicycle rider without blocking their vision. That’s precisely the kind of scenario in which placing elements in peripheral vision could be problematic.

“[There is] no problem with a static image in the corner of your eye if you are at a desktop, but it will present conflicting information if you are walking or driving,” he adds.

Other complications could arise from interfaces that present interface elements that are inherently fixed in space relative to our gaze. For example, the eye rapidly “accomodates” to an image at a fixed location on the retina, rendering it invisible. Keeping interface elements visible could require jiggling them subtly, which might lead to further visual confusion as the user’s brain interprets such movement as movement of their real-world surroundings.

This could mean that using an augmented reality heads up-type display to text or browse the web while walking could be distracting enough to significantly impair a user’s ability to observe hazards in their environment.

Mixing fixed elements into a dynamic real environment could also lead to “simulator sickness” in some users, Sabelman speculates. The factors that contribute to illness in virtual reality environments aren’t completely understood, but static elements in a user’s peripheral vision could be a contributing factor.

This doesn’t mean augmented reality is automatically a boondoggle, any more than ipods and cell phones have proven to be – but it does mean we might have to some day expand on those no texting while driving laws.

“I suppose we could learn to [walk or drive and use an AR system at the same time],” says Sabelman. “We can do all kinds of optical manipulations [on test subjects] and people will learn to interpret them correctly… but it adds extra load to our visual processing.”

Weren't able to make it to EmTech Digital?
We've got you covered.

Watch videos here

Uh oh–you've read all of your free articles for this month.

Insider Premium
$179.95/yr US PRICE

More from Intelligent Machines

Artificial intelligence and robots are transforming how we work and live.

Want more award-winning journalism? Subscribe to Insider Premium.
  • Insider Premium {! insider.prices.premium !}*

    {! insider.display.menuOptionsLabel !}

    Our award winning magazine, unlimited access to our story archive, special discounts to MIT Technology Review Events, and exclusive content.

    See details+

    What's Included

    Bimonthly home delivery and unlimited 24/7 access to MIT Technology Review’s website.

    The Download. Our daily newsletter of what's important in technology and innovation.

    Access to the Magazine archive. Over 24,000 articles going back to 1899 at your fingertips.

    Special Discounts to select partner offerings

    Discount to MIT Technology Review events

    Ad-free web experience

    First Look. Exclusive early access to stories.

    Insider Conversations. Listen in as our editors talk to innovators from around the world.

/
You've read all of your free articles this month. This is your last free article this month. You've read of free articles this month. or  for unlimited online access.