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Stimulation Strategies for Tinnitus Suppression in a Neuron Model
Alessandra Paffi1, Francesca Camera1, Chiara Carocci1
1Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy.
Computational and Mathematical Methods in Medicine
|August 30, 2018
Summary
Electrical stimulation using noise and signals can reduce tinnitus symptoms. Combining continuous waves and Gaussian noise shows promise for suppressing tinnitus via cochlear implants.
Area of Science:
- Neuroscience
- Auditory system research
- Biophysics
Background:
- Tinnitus is the perception of sound without external stimuli, originating centrally or peripherally.
- Electrical stimulation of auditory fibers may alleviate tinnitus, but mechanisms are unclear.
Purpose of the Study:
- To investigate the effects of electrical stimulation on neuronal firing in a model of tinnitus.
- To compare the efficacy of continuous wave signals and white Gaussian noise in reducing neuronal firing.
Main Methods:
- Utilized a stochastic neuron model simulating an auditory fiber affected by tinnitus.
- Applied continuous wave signals and white Gaussian noise to the model.
- Analyzed the reduction in neuronal firing rates.
Main Results:
- Both white Gaussian noise and continuous waves (tens of kHz) reduced neuronal firing.
- Gaussian noise was more efficient than continuous waves at equivalent fluctuation amplitudes.
- Simultaneous application of signal and noise demonstrated a cooperative effect in normalizing neuronal firing.
Conclusions:
- Electrical stimulation, particularly using noise, can reduce tinnitus-related neuronal hyperactivity.
- A combination of signal and noise may be a viable strategy for tinnitus suppression.
- Results support the potential use of combined signal and noise in cochlear prostheses for tinnitus management.
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