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Published Oct 25, 2022

Expanding Your Senses

Dive into the groundbreaking work of neuroscientist David Eagleman as he explores the future of sensory expansion through technology, highlighting innovations like sensory substitution vests that let the deaf "hear" through vibrations and envisioning a world augmented by new sensory experiences that could revolutionize human perception.
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  • Vibration Hearing

    has developed a groundbreaking vest that allows individuals with profound deafness to "hear" through vibrations on their skin. This vest, known as the Versatile Extrasensory Transducer, translates sound into patterns of vibration, which the brain can interpret as auditory information 1. Over time, users adapt to this sensory substitution, eventually perceiving these vibrations as sound itself. explains:

    After about five or six months, people describe this as hearing.

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    This innovative approach demonstrates the brain's remarkable ability to adapt and learn new ways of processing sensory information 2.

       

    Historical Roots

    The concept of sensory substitution has historical roots, with pioneering the field in 1969. He created a device that allowed blind individuals to "see" through tactile feedback on their skin, using a grid of solenoids to convey visual information 3. This method demonstrated that the brain could interpret sensory data through unconventional channels, laying the groundwork for modern innovations like Eagleman's vest. reflects on this legacy:

    All vision ever is is spikes running around in the brain.

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    Such advancements highlight the potential for technology to expand human perception beyond natural limitations.

       

    Perception Expansion

    The idea of expanding human perception is rooted in the concept of "umwelt," which refers to the unique sensory world each creature experiences. explores how sensory substitution can broaden our umwelt, allowing us to perceive aspects of reality beyond our natural senses 4. By introducing new sensory channels, we might develop new qualia, or subjective sensory experiences, that enrich our understanding of the world. Eagleman poses an intriguing question:

    Could we have a new kind of qualia that is not something that we're used to getting through our eyes or ears?

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    This exploration opens up possibilities for enhancing human capabilities and experiencing the world in unprecedented ways.

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