Affective reactions to visually masked stimuli within a virtual environment

Area of Science:

• Perceptual psychology
• Affect psychology
• Virtual reality research

Background:

• Visual masking influences conscious perception, rendering targets invisible under specific conditions.
• Research on visual masking in virtual environments, especially concerning affect psychology, is limited.
• Traditional visual masking often uses co-planar stimuli without depth disparity.

Purpose of the Study:

• To establish the efficacy of visual masking with three-dimensional (3D) objects in virtual environments.
• To investigate affect-driven reactions to masked 3D facial expressions within a virtual setting.
• To lay the groundwork for using visual masking in virtual reality for mood induction and cybertherapy.

Main Methods:

• Study 1: Assessed visual masking effectiveness using 3D masked objects with internal depth disparity in a virtual space.
• Study 2: Examined choice reactions to 3D masked facial expressions, focusing on emotional responses.
• Utilized virtual reality technology to present masked stimuli and record behavioral responses.

Main Results:

• Visual masking is achievable in virtual environments, even with target objects possessing internal depth disparity.
• Participants exhibited an unconscious bias to move away from masked angry faces and towards masked smiling faces.
• Demonstrated the potential for masked stimuli to influence affective responses and navigation behavior.

Conclusions:

• Visual masking is a viable technique within virtual environments for manipulating perception and affective responses.
• Masked facial expressions in VR can unconsciously bias behavior, suggesting applications in understanding emotional processing.
• These findings support the development of virtual reality-based mood induction techniques for therapeutic purposes.