Sending U.S. soldiers to a 'virtual Iraq'

Virtual reality system to address post-traumatic stress disorder

A soldier is riding in a humvee convoy through what could be the tranquil Mojave Desert. Soon the vehicle is passing through a Middle Eastern city where the smell of exotic spices and cooked lamb waft through the truck as it rumbles past burned-out cars and bombed-out buildings. In an instant, a second humvee explodes in front of the soldier's vehicle, and the concussive force of the bomb shakes the truck.

This scenario is part of a new virtual reality system developed by researchers to help soldiers who are suffering from post-traumatic stress disorder (PTSD) brought on by their service in the Iraq war.

The goal of the system is to gradually expose the returning soldiers -- by wearing the system's goggles and head phones -- to the sights, sounds and smells that traumatized them in Iraq, said Albert "Skip" Rizzo, research assistant professor at the Institute for Creative Technologies at the University of Southern California. The exposure should help ease the PTSD symptoms, he said. The Institute is developing the system jointly with the U.S. Navy's Office of Naval Research.

Since beginning clinical trials using the system at the end of last year, six soldiers have been treated on it, Rizzo said. Four of those have seen "dramatic improvements," he said. In fact, he added, one of the treated soldiers has returned to Iraq, and a second will soon go back.

The virtual reality system is based on a video game called Full Spectrum Warrior that was developed by the Army as a training tool. The researchers added graphics, sounds, vibrations and smells to the original game to create various scenarios mimicking those experienced by soldiers in Iraq, Rizzo said.

The scenarios include soldiers being shot at by insurgents, crashing in a helicopter or witnessing a bomb exploding or a fellow soldier being shot. To help make the experience more real, the platform where the soldier sits can vibrate during a humvee ride and provide the smell of human sweat, gunpowder or burning rubber, Rizzo said.

"We're basically trying to use computer systems to create as immersive an environment as we can," he said. "The sense of smell is directly tied to areas of the brain that are responsible for memory and emotion."

Using a tablet PC, the person treating the soldier can gradually add more frightening stimuli. With this technique, "a person experiences a little bit of anxiety, and they stick with it and talk about it, and eventually that anxiety extinguishes," Rizzo said.

Based on feedback from soldiers themselves, researchers have plans to enhance the realism of the system by adding more wounded people when a vehicle explodes or a building blows up, Rizzo said. They also plan to add specific emerging attack scenarios such as insurgents coming out of houses or attacking from rooftops and bridges, he added.

Join the newsletter!


Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Heather Havenstein

Show Comments

Father’s Day Gift Guide

Brand Post

Bitdefender 2019

Bitdefender’s best-in-class security solutions have been awarded Product of the Year. Get cybersecurity that 500 MILLION users already have and trust!

Most Popular Reviews

Latest Articles


PCW Evaluation Team

Luke Hill


I need power and lots of it. As a Front End Web developer anything less just won’t cut it which is why the MSI GT75 is an outstanding laptop for me. It’s a sleek and futuristic looking, high quality, beast that has a touch of sci-fi flare about it.

Emily Tyson

MSI GE63 Raider

If you’re looking to invest in your next work horse laptop for work or home use, you can’t go wrong with the MSI GE63.

Laura Johnston

MSI GS65 Stealth Thin

If you can afford the price tag, it is well worth the money. It out performs any other laptop I have tried for gaming, and the transportable design and incredible display also make it ideal for work.

Andrew Teoh

Brother MFC-L9570CDW Multifunction Printer

Touch screen visibility and operation was great and easy to navigate. Each menu and sub-menu was in an understandable order and category

Louise Coady

Brother MFC-L9570CDW Multifunction Printer

The printer was convenient, produced clear and vibrant images and was very easy to use

Edwina Hargreaves

WD My Cloud Home

I would recommend this device for families and small businesses who want one safe place to store all their important digital content and a way to easily share it with friends, family, business partners, or customers.

Featured Content

Product Launch Showcase

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?