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Electrical stimulation of the human cochlea using a transtympanic electrode
British Journal of Audiology
|May 1, 1977
Summary
This study explored alternating current cochlear stimulation via transtympanic electrodes. While it caused somatic sensations and vertigo in some patients, tinnitus was temporarily suppressed in two cases.
Area of Science:
- Otorhinolaryngology
- Neuroscience
- Biomedical Engineering
Background:
- Cochlear implants are crucial for hearing restoration.
- Understanding electrical stimulation effects on the cochlea is vital.
- Tinnitus remains a challenging auditory symptom.
Purpose of the Study:
- Investigate alternating current (AC) effects on normal and damaged cochleas.
- Assess AC stimulation's impact on tinnitus.
- Evaluate the electrical dynamic range of cochlear stimulation.
Main Methods:
- Thirteen patients received transtympanic electrode cochlear stimulation.
- Electrical dynamic range measurements were performed.
- A loudness balance test was conducted in one case.
Main Results:
- Somatic sensations were reported by nine patients.
- Four patients experienced vertigo.
- Temporary tinnitus suppression occurred in two out of nine patients.
Conclusions:
- Alternating current cochlear stimulation can induce somatic sensations and vertigo.
- While not universally effective, temporary tinnitus suppression is possible.
- Further research is needed to optimize AC stimulation for auditory disorders.