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Electric lollipop brings taste to virtual reality

Electric lollipop brings taste to virtual reality

VR ‘gustation interface’ lets you taste a grapefruit while in the metaverse

Researchers have built a lollipop-shaped device that brings the sense of taste to virtual reality.

The VR mouthpiece, developed by a team from the City University of Hong Kong, can deliver different flavours by stimulating a user’s taste buds.

The researchers describe it as a “portable lollipop-shaped gustation interface” that can be used within VR applications for “adjustable taste” experiences.

“Alongside visual, auditory, haptic, and olfactory sensations, taste significantly influences both the physiological and psychological aspects of human experience, however, the research in the development of taste-generating technologies in VR applications is still in its infancy,” the researchers wrote in a study detailing the technology.

“We report a set of intelligent and portable lollipop-shaped taste interfacing systems covering from two to nine different taste options for establishing an adjustable taste platform in virtual reality (VR), augmented reality (AR), and mixed reality (MR) environments.”

The lollipop features various taste generators that can produce nine different flavours – sugar, salt, citric acid, cherry, passion fruit, green tea, milk, durian and grapefruit.

Each of these flavours are delivered through food-grade chemicals that are embedded within tiny gel pockets on the surface of the device.

When these gel pockets are stimulated by an electrical current, the chemicals within them rise to the surface and mix with the tongue’s saliva to produce the flavour.

The flavour intensity can then be increased or decreased by altering the voltage to the gel pockets.

The creators of the VR lollipop say that potential applications include remote shopping, human-machine interfaces and entertainment.

The study, titled ‘Miniaturized, portable gustation interfaces for VR/AR/MR’, was published this week in the Proceedings of the National Academy of Sciences (PNAS) journal.

Independent

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