Framework for Microdosing Odors in Virtual Reality for Psychophysiological Stress Training

Area of Science:

• Psychology
• Virtual Reality Technology
• Sensory Science

Background:

• Emergency personnel utilize virtual reality (VR) for stress training, primarily engaging visual, auditory, and tactile senses.
• Olfactory stimuli are largely overlooked in current VR stress training paradigms.
• Enhancing immersion and presence in VR simulations is crucial for effective stress management training.

Purpose of the Study:

• To investigate the potential of olfactory stimuli to improve presence and immersion in VR stress training.
• To demonstrate the benefits of incorporating olfactory elements into VR civilian stress training for emergency responders.
• To explore the role of odors in modulating psychophysiological stress responses within a VR environment.

Main Methods:

• Development and validation of a portable fragrance dosing system for personalized odor delivery in VR.
• Utilizing piezoelectric stainless steel micropumps for precise and reproducible release of small odor quantities.
• Designing an experimental framework for VR stress training incorporating olfactory stimuli via a novel VR technology.

Main Results:

• Validation results confirm the suitability of the micropump system for consistent, localized odor delivery near the user's nose.
• The developed system demonstrates reproducible control over odorant release, essential for experimental rigor.
• The study lays the groundwork for integrating olfactory feedback into VR training protocols.

Conclusions:

• Olfactory stimuli hold significant potential for enhancing the immersive experience and effectiveness of VR stress training.
• The developed portable odor delivery system offers a viable method for personalized olfactory feedback in VR.
• Further experimental research is warranted to fully elucidate the impact of olfactory VR on psychophysiological stress in emergency personnel.