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Altering Time Perception in Virtual Reality Through Multimodal Visual-Tactile Kappa Effect.

Yuri De-Pra, Vincenzo Catrambone, Virginie van-Wassenhove

IEEE Transactions on Haptics

|April 26, 2023

Summary

This summary is machine-generated.

This study shows the Kappa effect, a time distortion illusion, can be created using combined visual and tactile Virtual Reality (VR) stimuli. This finding could personalize VR experiences by altering time perception.

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Area of Science:

Neuroscience
Human-Computer Interaction
Virtual Reality

Background:

Time perception is subjective and linked to spatial awareness.
The Kappa effect demonstrates how spatial distance influences perceived time between stimuli.
This effect has not been explored within a multisensory Virtual Reality (VR) framework.

Purpose of the Study:

To investigate the Kappa effect using concurrent visual-tactile stimuli in VR.
To compare the Kappa effect in VR versus the physical world.
To explore the relationship between time discrimination ability and the Kappa effect magnitude.

Main Methods:

Developed a multimodal VR interface for concurrent visual-tactile stimulation on the forearm.
Conducted experiments in both VR and the physical world using identical stimulation protocols.
Measured participants' subjective time perception and time interval discrimination.

Main Results:

The multimodal Kappa effect was successfully elicited in both VR and physical environments.
Results indicate a correlation between an individual's time discrimination ability and the strength of the Kappa effect.
The study validates the use of concurrent visual-tactile stimuli to induce time distortions.

Conclusions:

The Kappa effect can be reliably induced using multisensory (visual-tactile) stimulation in VR.
Individual differences in time perception influence the magnitude of the Kappa effect.
Findings offer potential for modulating subjective time perception in VR for enhanced human-computer interaction.