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Modulation of thermal perception by VR-based visual stimulation to the embodied virtual body
Yuhi Takeo1, Masayuki Hara2, Naofumi Otsuru3
1Department of Rehabilitation, Oita University Hospital, Oita, Japan; Graduate School of Medicine, Oita University, Oita, Japan.
Behavioural Brain Research
|December 13, 2024
Summary
Virtual reality visual stimulation of an embodied virtual body can alter thermal perception. The insula brain region acts as a hub, controlling sensory information and influencing attention and cognition.
Area of Science:
- Neuroscience
- Virtual Reality Studies
- Human Perception Research
Background:
- Embodied virtual bodies can influence human perception.
- The neurophysiological mechanisms underlying this effect are not fully understood.
Purpose of the Study:
- To investigate the neurophysiological mechanisms of visual stimulation on embodied virtual bodies.
- To examine how virtual reality influences sensory perception and brain activity.
Main Methods:
- Fifteen healthy participants underwent virtual reality visual stimulation (fire, water, none) combined with thermal grill stimulation.
- Electroencephalography (EEG) measured neural oscillations.
- Regression analysis identified brain regions involved in sensory modulation.
Main Results:
- Visual stimuli to a virtual hand modulated thermal perception.
- The insula showed significant association with thermal perception in both fire and water conditions.
Conclusions:
- The insula plays a crucial role in gating sensory information and influencing attention and cognition.
- Visual stimulation of embodied virtual bodies impacts perception through specific neural pathways involving the insula.
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