Virtual reality therapy for heights fear

Virtual reality can simulate dizzying experiences such as being perched on the edge of a 10th-floor balcony and help overcome a fear of heights, a study shows.

Fear of heights can be overcome using virtual reality to simulate dizzying experiences such as being perched on the edge of a 10th-floor balcony, a study has shown.

Psychiatrists in Oxford, England, tested the therapy on 100 volunteers with a serious height phobia who responded to adverts on local radio.

They were split into two groups, one of which underwent six 30-minute virtual reality (VR) sessions over a period of two weeks.

Patients wore VR headsets that immersed them in a virtual world where, guided by an avatar "coach", they were encouraged to face their fears.

Within the simulation, each participant was taken to a 10-storey office block with a yawning atrium.

There, they engaged in activities designed to be both entertaining and increasingly terror-defying.

Examples included crossing a rickety walkway, stepping out on a platform with no safety barriers, rescuing a cat from a tree, and playing a xylophone on the edge of a balcony.

Finally, they were given the opportunity to ride a virtual whale around the atrium space.

Professor Daniel Freeman, from Oxford University's Department of Psychiatry, said: "The results are extraordinarily good. We were confident the treatment would prove effective, but the outcomes exceeded our expectations.

"Over three-quarters of the participants receiving the VR treatments showed at least a halving of their fear of heights. Our study demonstrates that virtual reality can be an extremely powerful means to deliver psychological therapy," Prof Freeman said.

"We know that the most effective treatments are active: patients go into the situations they find difficult and practise more helpful ways of thinking and behaving. This is often impractical in face-to-face therapy, but easily done in VR."

The results are reported in the latest edition of The Lancet Psychiatry journal.

Prof Freeman said: "When VR is done properly, the experience triggers the same psychological and physiological reactions as real-life situations. And that means that what people learn from the VR therapy can help them in the real world."

The trial opened up the "exciting" prospect of using virtual reality to tackle other problems such as depression, psychosis and addictions, said Prof Freeman.

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