A new generation of non-invasive hearing technology, born of breakthroughs in neuroscience

The science of sensory substitution

Neosensory feeds information to the brain via touch. Our technology emerged from the research laboratory of neuroscientist Dr. David Eagleman, and under the aegis of Neosensory we have built our technology into a sleek wristband with vibratory motors, a microphone, high computational capacity, and cutting-edge algorithms.

We have many projects underway. Below we show the science behind two of them: tinnitus and hearing loss.

Tinnitus Relief

Tinnitus affects 10 – 15% of the population. It’s not rare, but it can be difficult to live with. There’s no cure for tinnitus, but new neuroscience research shows that pairing notes with touch (known as bimodal stimulation) can reduce the volume and annoyance of ringing in the ears. This research was originally done with tones plus shocks on the tongue (Marks et al 2018; Conlon et al 2020), but that approach requires going into an audiology clinic every day for treatment.

Now bimodal stimulation has a new approach.

Our solution: Neosensory Duo

With Neosensory Duo, we have made bimodal stimulation simpler and more effective. First, no doctor’s visit is required. We mail the wristband to your home. You simply download our free app, put on the wristband, and listen to a specially designed series of notes for 10 minutes a day. The sounds and patented vibrations are synchronized. Over time, this teaches the brain which sounds are real (external) and which are self-generated (internal). Over the course of weeks, your brain learns to pay less attention to the internal sounds, and tinnitus becomes less challenging to deal with on a daily basis. Most customers participate in our subscription program for 2 months, some find it useful to keep it for 3 months, and others keep it forever.

Relief over duration of program

Over 87% of users find relief

Circle Chart

Figure 1. Efficacy of the Neosensory program for people with moderate to severe tinnitus, as measured by the Tinnitus Functional Index (TFI).
Results from Perrotta, Kohler, Eagleman (2023) Bimodal Stimulation for the Reduction of Tinnitus Using Vibration on the Skin. International Tinnitus Journal.

Perrotta M, Kohler I, Eagleman DM (2023). Bimodal stimulation for the reduction of tinnitus using vibration on the skin. International Tinnitus Journal. [paper]
Conlon B, Langguth B, Hamilton C, Hughes S, Meade E, Connor CO, Schecklmann M, Hall DA, Vanneste S, Leong SL, Subramaniam T (2020). Bimodal neuromodulation combining sound and tongue stimulation reduces tinnitus symptoms in a large randomized clinical study. Science Translational Medicine. 12(564).
Eagleman DM (2020). Livewired. Pantheon Books.
Marks KL, Martel DT, Wu C, Basura GJ, Roberts LE, Schvartz-Leyzac KC, Shore SE (2018). Auditory-somatosensory bimodal stimulation desynchronizes brain circuitry to reduce tinnitus in guinea pigs and humans. Science Translational Medicine. 10(422).

Sound awareness for hearing loss

For years we have studied how people who are deaf or hard of hearing can learn to identify sounds that are algorithmically translated into spatiotemporal patterns of vibration on the skin of the wrist.

In our peer-reviewed, published data, we have demonstrated that in a three-alternative forced choice task, participants could determine the identity of up to 95% of the stimuli simply by the spatial pattern of vibrations on the skin. Performance improved significantly over the course of 1 month. Similar results were obtained with pattern discrimination, in which a pattern representing the sound of one word was presented to the skin, followed by that of a second word. Participants answered whether the word was the same or different.

With minimal difference pairs (distinguished by only one phoneme, such as “house” and “mouse”), the best performance was 83% (average of 62%), while with non-minimal pairs (such as “house” and “zip”) the best performance was 100% (average of 70%).

These results demonstrate that participants are capable of using the channel of the skin to interpret sound.

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