From T-Shirt Sniffing to VR Scents: The Emerging World of Olfactory Technology
If you remember actors Peter Lorre and Elizabeth Taylor, you might recall their 1960 film Scent of Mystery. This Hollywood production holds the distinction of being the first and only movie to utilize Smell-O-Vision technology. Clunky machines pumped scents like pipe tobacco, roses, and gunpowder into theaters using pressurized air.
The film and its technological innovation were both commercial failures. In fact, Time magazine included Smell-O-Vision on its list of the Top 100 Worst Ideas of All Time. A 2016 Indiegogo campaign attempting to revive the concept as an art project raised just over $3,000 from 40 backers.
The Evolution of Scent Technology
Despite these early setbacks, technology has progressed significantly. Several companies are now developing sophisticated olfactory add-ons for consumer virtual reality headsets. A recent press release from the Institute of Science in Tokyo describes a device that enables users to experience multiple scents while exploring virtual environments.
According to lead researcher Takamichi Nakamoto, the device can blend up to eight different fragrance components. This allows users to experience scents that correspond precisely to their virtual surroundings. For example, if someone is virtually strolling through a tranquil section of New York's Central Park and encounters a decomposing bear carcass in the VR environment, the scent can be adjusted accordingly to match this grisly scenario.
Historical Attempts and Scientific Foundations
This development recalls earlier attempts at scent technology. In the early 1980s, Charles of the Ritz introduced the Aromance Aroma Disk Player. Resembling a CD player, this device accepted small round scent discs that filled homes with aromas like "Romance," "Fireplace," and "Movie Time"—the latter smelling distinctly like buttered popcorn.
The sense of smell possesses particular power for solid scientific reasons. Unlike visual or auditory input, which travel through the thalamus, odors take a direct neurological route into the limbic system. This pathway directly engages the amygdala, which processes emotions, and the hippocampus, which handles memory formation.
This neurological shortcut forms the basis for the famous Proustian Phenomenon, named after the literary passage in which the narrator dips a madeleine cake into tea and is instantly transported back to his childhood. Rudyard Kipling captured this phenomenon perfectly when he wrote: "Smells are surer than sounds or sights/To make your heart-strings crack."
Modern Applications and Future Potential
Assuming the Tokyo product or similar technologies gain traction, they could open entirely new sensory dimensions, particularly in entertainment. A landmark 2010 study at Florida State University demonstrated the profound effects of scent. Researchers had men sniff T-shirts worn by women close to ovulation, women far from ovulation, and unworn control shirts.
The results were striking: men exposed to the scent of an ovulating woman subsequently displayed significantly higher testosterone levels compared to those exposed to scents from non-ovulating women or control scents. This research underscores how deeply scent influences human physiology and behavior.
Today's scent technology extends beyond entertainment. Retailers are exploring ways to incorporate scent into shopping experiences. Using solutions like NCR's Web Kiosk, businesses can add the dimension of scent to sight and sound, creating more complete consumer experiences. Companies like Aerome are developing unique scent release technologies that allow consumers to experience virtually any scent through dry air streams.
Art installations have also embraced olfactory technology. Norwegian artist Sissel Tolaas created The FEAR of smell-the smell of FEAR, an installation that mimics scents emitted by humans experiencing fear. Such works demonstrate how scent technology can create powerful emotional and psychological responses.
As olfactory technology continues to evolve, it promises to transform how we experience virtual environments, retail spaces, and artistic expressions. From failed Hollywood experiments to sophisticated VR integrations, the journey of scent technology illustrates both the challenges and remarkable potential of engaging our most primal sense.
