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Virtual reality study finds our perception of our body and environment affects how we feel

October 13, 2016

Whether we feel scared or pleased in an environment and how we explore it is down to our combined perception of space and of our bodies, according to new research conducted in a virtual reality environment. The study, published in the journal Heliyon, suggests that the brain uses the interplay of these factors to control our emotional experience and exploration of an environment.

"Our hypothesis was that the emotional experience and the exploration of the environment are not simply triggered by environmental stimuli, but that the brain is regulating emotional experience and exploratory behavior based on the perception of one's body and the spatial context in relation to each other," explained lead author Dr. Martin Dobricki from the University of Würzburg in Germany.

Dr. Dobricki and his colleagues tested their theory by seeing if the sensory input on the way people walk - their gait - and the sensory input on the spatial context they are within interdependently control their emotional experience and exploration of an environment. To do this, they put volunteers in a life-sized virtual forest glade and had them walk on a wood plank on the ground or elevated in the air, which made their gait bouncy.

As one might expect, a bouncy gait intensified people's experience of the environment as negative and frightening when they were walking high off the ground. But surprisingly, at ground level a bouncy gait gave people more positive emotions about the environment. This meant high up, a bouncy gait made people explore the environment more below the horizon, whereas on the ground it increased their exploration above the horizon.

These findings suggest that the information our sensory organs provide about an environment and the information they give about our gait influence each other in what the researchers call the "sensorimotor body-environment interaction."

The researchers speculate that adding a bouncy floor to a space, one used in a setup for treating fear of heights with exposure therapy, for example, could intensify people's fear and therefore maximize the therapeutic effect of being exposed to height. They also have the potential to lead to new ways of managing emotions, but more research is needed.

"Our research shows that we are not stimulus-response machines; our emotions and our behavior are both based on the interdependent perception of ourselves and the world," said Dr. Dobricki.

"We hope that our findings will inspire other people to look at the body-environment interaction we have identified. For example, experiments like asking people emotion-inducing questions while they sit, walk or swim could result in many interesting and surprising findings and might lead to totally novel techniques for managing emotional response."
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Article details: "Sensorimotor body-environment interaction serves to regulate emotional experience and exploratory behavior" by Dobricki et al. (http://www.heliyon.com/article/e00173/). The article appears in Heliyon (October 2016), published by Elsevier.

About Heliyon

Heliyon is an online only, fully open access journal from Elsevier publishing quality original research across all disciplines. All Heliyon papers are freely available on both Heliyon.com and ScienceDirect. Heliyon is also indexed on Scopus and PubMed Central, ensuring each paper reaches the widest possible relevant audience.

About Elsevier

Elsevier is a world-leading provider of information solutions that enhance the performance of science, health, and technology professionals, empowering them to make better decisions, deliver better care, and sometimes make groundbreaking discoveries that advance the boundaries of knowledge and human progress. Elsevier provides web-based, digital solutions - among them ScienceDirect, Scopus, Elsevier Research Intelligence and ClinicalKey - and publishes over 2,500 journals, including The Lancet and Cell, and more than 33,000 book titles, including a number of iconic reference works. Elsevier is part of RELX Group plc, a world-leading provider of information solutions for professional customers across industries.

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